linux-kernel-labs / linux Goto Github PK

$ cd tools/labs
$ make clean
$ LABS=device_drivers make skels
$ make build

In file included from ./include/linux/types.h:6,
                 from ./include/linux/list.h:5,
                 from ./include/linux/module.h:12,
                 from /home/pierre/git/linux/tools/labs/skels/./device_drivers/kernel/so2_cdev.c:7:
./include/uapi/linux/types.h:5:10: fatal error: asm/types.h: No such file or directory
    5 | #include <asm/types.h>
      |          ^~~~~~~~~~~~~

1. #include "test.h"
2. #include "debug.h"
3. #include "util.h"
4.
5. #include "tracer.h"
6. #include "tracer_test.h"
7. #include "helper.h"
8.
9. /* use this to enable stats debugging */
10. #if 0
11. #define DEBUG
12. #endif

1. /* use this to enable stats debugging */
2. #if 0
3. #define DEBUG
4. #endif
5.
6. #include "test.h"
7. #include "debug.h"
8. #include "util.h"
9.
10. #include "tracer.h"
11. #include "tracer_test.h"
12. #include "helper.h"

git clone https://github.com/linux-kernel-labs/linux.git --depth 1
cd linux/
make menuconfig
make -j8
cd tools/labs/
LABS="kernel_api" make skels
make build
make copy
make boot

mkdir /tmp/tmp.1aUumDy9it
sudo mount -t ext4 -o loop core-image-minimal-qemux86.ext4 /tmp/tmp.1aUumDy9it
sudo make -C /home/relu/programming/anul4/5-so2/linux modules_install INSTALL_MOD_PATH=/tmp/tmp.1aUumDy9it
make: Entering directory '/home/relu/programming/anul4/5-so2/linux'
  INSTALL arch/x86/crypto/aes-x86_64.ko
  INSTALL arch/x86/crypto/aesni-intel.ko
  INSTALL arch/x86/crypto/blowfish-x86_64.ko
  INSTALL arch/x86/crypto/camellia-aesni-avx-x86_64.ko
  INSTALL arch/x86/crypto/camellia-aesni-avx2.ko
  INSTALL arch/x86/crypto/camellia-x86_64.ko
  INSTALL arch/x86/crypto/cast5-avx-x86_64.ko
  INSTALL arch/x86/crypto/cast6-avx-x86_64.ko
  INSTALL arch/x86/crypto/chacha20-x86_64.ko
  INSTALL arch/x86/crypto/crc32-pclmul.ko
  INSTALL arch/x86/crypto/crct10dif-pclmul.ko
  INSTALL arch/x86/crypto/des3_ede-x86_64.ko
  INSTALL arch/x86/crypto/ghash-clmulni-intel.ko
  INSTALL arch/x86/crypto/glue_helper.ko
  INSTALL arch/x86/crypto/poly1305-x86_64.ko
  INSTALL arch/x86/crypto/salsa20-x86_64.ko
  INSTALL arch/x86/crypto/serpent-avx-x86_64.ko
  INSTALL arch/x86/crypto/serpent-avx2.ko
  INSTALL arch/x86/crypto/serpent-sse2-x86_64.ko
  INSTALL arch/x86/crypto/sha1-mb/sha1-mb.ko
  INSTALL arch/x86/crypto/sha1-ssse3.ko
  INSTALL arch/x86/crypto/sha256-mb/sha256-mb.ko
  INSTALL arch/x86/crypto/sha256-ssse3.ko
  INSTALL arch/x86/crypto/sha512-mb/sha512-mb.ko
  INSTALL arch/x86/crypto/sha512-ssse3.ko
  INSTALL arch/x86/crypto/twofish-avx-x86_64.ko
  INSTALL arch/x86/crypto/twofish-x86_64-3way.ko
  INSTALL arch/x86/crypto/twofish-x86_64.ko
  INSTALL arch/x86/events/intel/intel-cstate.ko
  INSTALL arch/x86/events/intel/intel-rapl-perf.ko
  INSTALL arch/x86/kernel/cpu/mcheck/mce-inject.ko
  INSTALL arch/x86/kernel/cpuid.ko
  INSTALL arch/x86/kernel/msr.ko
  INSTALL arch/x86/kvm/kvm-amd.ko
  INSTALL arch/x86/kvm/kvm-intel.ko
  INSTALL arch/x86/kvm/kvm.ko
  INSTALL arch/x86/oprofile/oprofile.ko
  INSTALL arch/x86/platform/atom/punit_atom_debug.ko
  INSTALL block/bfq.ko
  INSTALL block/kyber-iosched.ko
  INSTALL block/mq-deadline.ko
  INSTALL crypto/842.ko
  INSTALL crypto/ablk_helper.ko
  INSTALL crypto/aes_ti.ko
  INSTALL crypto/af_alg.ko
  INSTALL crypto/algif_aead.ko
  INSTALL crypto/algif_hash.ko
  INSTALL crypto/algif_rng.ko
  INSTALL crypto/algif_skcipher.ko
  INSTALL crypto/ansi_cprng.ko
  INSTALL crypto/anubis.ko
  INSTALL crypto/arc4.ko
  INSTALL crypto/asymmetric_keys/pkcs7_test_key.ko
  INSTALL crypto/async_tx/async_memcpy.ko
  INSTALL crypto/async_tx/async_pq.ko
  INSTALL crypto/async_tx/async_raid6_recov.ko
  INSTALL crypto/async_tx/async_tx.ko
  INSTALL crypto/async_tx/async_xor.ko
  INSTALL crypto/authenc.ko
  INSTALL crypto/authencesn.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/authencesn.ko': No space left on device
  INSTALL crypto/blowfish_common.ko
  INSTALL crypto/blowfish_generic.ko
  INSTALL crypto/camellia_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/camellia_generic.ko': No space left on device
  INSTALL crypto/cast5_generic.ko
  INSTALL crypto/cast6_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/cast6_generic.ko': No space left on device
  INSTALL crypto/cast_common.ko
  INSTALL crypto/ccm.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/ccm.ko': No space left on device
  INSTALL crypto/chacha20_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/chacha20_generic.ko': No space left on device
  INSTALL crypto/chacha20poly1305.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/chacha20poly1305.ko': No space left on device
  INSTALL crypto/cmac.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/cmac.ko': No space left on device
  INSTALL crypto/crc32_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/crc32_generic.ko': No space left on device
  INSTALL crypto/cryptd.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/cryptd.ko': No space left on device
  INSTALL crypto/crypto_engine.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/crypto_engine.ko': No space left on device
  INSTALL crypto/crypto_simd.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/crypto_simd.ko': No space left on device
  INSTALL crypto/crypto_user.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/crypto_user.ko': No space left on device
  INSTALL crypto/deflate.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/deflate.ko': No space left on device
  INSTALL crypto/des_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/des_generic.ko': No space left on device
  INSTALL crypto/ecdh_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/ecdh_generic.ko': No space left on device
  INSTALL crypto/echainiv.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/echainiv.ko': No space left on device
  INSTALL crypto/fcrypt.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/fcrypt.ko': No space left on device
  INSTALL crypto/keywrap.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/keywrap.ko': No space left on device
  INSTALL crypto/khazad.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/khazad.ko': No space left on device
  INSTALL crypto/lrw.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/lrw.ko': No space left on device
  INSTALL crypto/lz4.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/lz4.ko': No space left on device
  INSTALL crypto/lz4hc.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/lz4hc.ko': No space left on device
  INSTALL crypto/mcryptd.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/mcryptd.ko': No space left on device
  INSTALL crypto/md4.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/md4.ko': No space left on device
  INSTALL crypto/michael_mic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/michael_mic.ko': No space left on device
  INSTALL crypto/pcbc.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/pcbc.ko': No space left on device
  INSTALL crypto/pcrypt.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/pcrypt.ko': No space left on device
  INSTALL crypto/poly1305_generic.ko
cp: error writing '/tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/poly1305_generic.ko': No space left on device
At main.c:356:
- SSL error:0200101C:system library:fopen:No space left on device: bss_file.c:175
- SSL error:2006D002:BIO routines:BIO_new_file:system lib: bss_file.c:180
sign-file: /tmp/tmp.1aUumDy9it/lib/modules/4.15.0+/kernel/crypto/poly1305_generic.ko.~signed~: No space left on device
scripts/Makefile.modinst:36: recipe for target 'crypto/poly1305_generic.ko' failed
make[1]: *** [crypto/poly1305_generic.ko] Error 1
Makefile:1235: recipe for target '_modinst_' failed

$ make boot
mkdir /tmp/tmp.d5BYbqHJg6
sudo mount -t ext4 -o loop core-image-minimal-qemux86.ext4 /tmp/tmp.d5BYbqHJg6
sudo make -C /home/coolder/Git/linux modules_install INSTALL_MOD_PATH=/tmp/tmp.d5BYbqHJg6
make: Entering directory '/home/coolder/Git/linux'
  INSTALL crypto/crypto_engine.ko
  INSTALL drivers/crypto/virtio/virtio_crypto.ko
  INSTALL drivers/net/netconsole.ko
  DEPMOD  4.19.0+
make: Leaving directory '/home/coolder/Git/linux'
sudo umount /tmp/tmp.d5BYbqHJg6
rmdir /tmp/tmp.d5BYbqHJg6
sleep 1 && touch .modinst
qemu/create_net.sh tap0

dnsmasq: failed to create listening socket for 172.213.0.1: Address already in use
qemu/create_net.sh tap1

dnsmasq: failed to create listening socket for 127.0.0.1: Address already in use
/home/coolder/Git/linux/tools/labs/templates/assignments/6-e100/nttcp -v -i &
nttcp-l: nttcp, version 1.47
nttcp-l: running in inetd mode on port 5037 - ignoring options beside -v and -p
bind: Address already in use
nttcp-l: service-socket: bind:: Address already in use, errno=98

Welcome to minicom 2.7.1                                                    
                                                                            
OPTIONS: I18n                                                               
Compiled on May  3 2018, 15:20:11.                                          
Port serial.pts, 02:47:06                                                   
                                                                            
Press CTRL-A Z for help on special keys                                     

$ minicom -D serial.pts

Poky (Yocto Project Reference Distro) 2.3 qemux86 /dev/hvc0

qemux86 login: root
root@qemux86:~#

$ cd tools/labs/
$ ARCH=arm make core-image-minimal-qemuarm.ext4

hello_mod: loading out-of-tree module taints kernel

    Tainted: G  
hello_mod 16384 0 - Live 0xc884b000 (O)

/ # ./ramdisktest
insmod ./ram-disk.ko
mknod /dev/myblock b 240 0
mknod: /dev/myblock: File exists
[   29.347210] my_block_open
use normal io
[   29.349346] req: start=0 tsize=4096 dsize=4096 dir=read
[   29.352516] bio: sector=0 offset=0, len=4096 dir=read
[   29.354854] req: start=0 tsize=4096 dsize=4096 dir=write
[   29.355560] bio: sector=0 offset=0, len=4096 dir=write
[   29.356199] req: start=0 tsize=4096 dsize=4096 dir=write
test sector   0 [   29.356864] bio: sector=0 offset=0, len=4096 dir=write
... passed
test sector   1 [   29.357781] req: start=0 tsize=4096 dsize=4096 dir=write
... passed
[   29.358652] bio: sector=0 offset=0, len=4096 dir=write
[   29.359513] req: start=0 tsize=4096 dsize=4096 dir=write
test sector   2 [   29.360191] bio: sector=0 offset=0, len=4096 dir=write
... passed
test sector   3 [   29.361177] req: start=0 tsize=4096 dsize=4096 dir=write
... passed
[   29.362016] bio: sector=0 offset=0, len=4096 dir=write
[   29.362833] req: start=0 tsize=4096 dsize=4096 dir=write
test sector   4 [   29.363529] bio: sector=0 offset=0, len=4096 dir=write
... passed
test sector   5 [   29.364518] req: start=0 tsize=4096 dsize=4096 dir=write
... passed
[   29.365369] bio: sector=0 offset=0, len=4096 dir=write
test sector   6 [   29.366223] req: start=0 tsize=4096 dsize=4096 dir=write
... passed
[   29.367067] bio: sector=0 offset=0, len=4096 dir=write
test sector   7 [   29.367891] req: start=8 tsize=4096 dsize=4096 dir=read
... passed
[   29.368737] bio: sector=8 offset=0, len=4096 dir=read
[   29.369566] req: start=8 tsize=4096 dsize=4096 dir=write
[   29.370235] bio: sector=8 offset=0, len=4096 dir=write
[   29.370911] req: start=8 tsize=4096 dsize=4096 dir=write
test sector   8 [   29.371590] bio: sector=8 offset=0, len=4096 dir=write
... passed
test sector   9 [   29.372584] req: start=8 tsize=4096 dsize=4096 dir=write
... passed
[   29.373435] bio: sector=8 offset=0, len=4096 dir=write
[   29.374365] req: start=8 tsize=4096 dsize=4096 dir=write
test sector  10 [   29.375054] bio: sector=8 offset=0, len=4096 dir=write
... passed
test sector  11 [   29.376050] req: start=8 tsize=4096 dsize=4096 dir=write
... passed
[   29.376917] bio: sector=8 offset=0, len=4096 dir=write
[   29.377724] req: start=8 tsize=4096 dsize=4096 dir=write
test sector  12 [   29.378405] bio: sector=8 offset=0, len=4096 dir=write
... passed
test sector  13 [   29.379435] req: start=8 tsize=4096 dsize=4096 dir=write
... passed
[   29.380260] bio: sector=8 offset=0, len=4096 dir=write
[   29.381078] req: start=8 tsize=4096 dsize=4096 dir=write
test sector  14 [   29.381764] bio: sector=8 offset=0, len=4096 dir=write
... passed
test sector  15 [   29.382768] req: start=16 tsize=4096 dsize=4096 dir=read
... passed
.............................. skip..................

/ # ./ramdisktest d
insmod ./ram-disk.ko
[    4.929450] ram_disk: loading out-of-tree module taints kernel.
mknod /dev/myblock b 240 0
[    6.985266] my_block_open
use direct io
test sector   0 ... failed
test sector   1 ... failed
test sector   2 ... failed
test sector   3 ... failed
test sector   4 ... failed
test sector   5 ... failed
test sector   6 ... failed
test sector   7 ... failed
test sector   8 ... failed
..........................................skip.......................

#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <errno.h>

#define NR_SECTORS 128
#define SECTOR_SIZE 512

#define DEVICE_NAME "/dev/myblock"
#define MODULE_NAME "ram-disk"
#define MY_BLOCK_MAJOR "240"
#define MY_BLOCK_MINOR "0"

#define max_elem_value(elem) (1 << 8 * sizeof(elem))

static unsigned char buffer[SECTOR_SIZE];
static unsigned char buffer_copy[SECTOR_SIZE];

static void test_sector(int fd, size_t sector)
{
	int i;

	for (i = 0; i < sizeof(buffer) / sizeof(buffer[0]); i++)
		buffer[i] = rand() % max_elem_value(buffer[0]);

	printf("test sector %3d ... ", sector);
	lseek(fd, sector * SECTOR_SIZE, SEEK_SET);
	write(fd, buffer, sizeof(buffer));

	fsync(fd);

	lseek(fd, sector * SECTOR_SIZE, SEEK_SET);
	read(fd, buffer_copy, sizeof(buffer_copy));

	if (memcmp(buffer, buffer_copy, sizeof(buffer_copy)) == 0)
		printf("passed\n");
	else
		printf("failed\n");
}

int main(int argc, char **argv)
{
	int fd;
	size_t i;
	int back_errno;

	printf("insmod ./" MODULE_NAME ".ko\n");
	if (system("insmod ./" MODULE_NAME ".ko\n")) {
		fprintf(stderr, "insmod failed\n");
		exit(EXIT_FAILURE);
	}

	sleep(1);

	printf("mknod " DEVICE_NAME " b " MY_BLOCK_MAJOR " " MY_BLOCK_MINOR
	       "\n");
	system("mknod " DEVICE_NAME " b " MY_BLOCK_MAJOR " " MY_BLOCK_MINOR
	       "\n");
	sleep(1);

	if (argc == 2 && argv[1][0] == 'd') {
		printf("use direct io\n");
		fd = open(DEVICE_NAME, O_RDWR | O_DIRECT | O_SYNC);
	} else {
		printf("use normal io\n");
		fd = open(DEVICE_NAME, O_RDWR);
	}
	if (fd < 0) {
		back_errno = errno;
		perror("open");
		fprintf(stderr, "errno is %d\n", back_errno);
		exit(EXIT_FAILURE);
	}

	srand(time(NULL));
	for (i = 0; i < NR_SECTORS; i++)
		test_sector(fd, i);

	close(fd);

	sleep(1);
	printf("rmmod " MODULE_NAME "\n");
	system("rmmod " MODULE_NAME "\n");

	return 0;
}

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>

#include <linux/genhd.h>
#include <linux/fs.h>
#include <linux/blkdev.h>
#include <linux/blk_types.h>
#include <linux/blkdev.h>
#include <linux/blk-mq.h>
#include <linux/bio.h>
#include <linux/vmalloc.h>

MODULE_DESCRIPTION("Simple RAM Disk");
MODULE_AUTHOR("SO2");
MODULE_LICENSE("GPL");

#define KERN_LOG_LEVEL KERN_ALERT

#define MY_BLOCK_MAJOR 240
#define MY_BLKDEV_NAME "mybdev"
#define MY_BLOCK_MINORS 1
#define NR_SECTORS 128

#define KERNEL_SECTOR_SIZE 512

/* TODO 6: use bios for read/write requests */
#define USE_BIO_TRANSFER 0

static struct my_block_dev {
	struct blk_mq_tag_set tag_set;
	struct request_queue *queue;
	struct gendisk *gd;
	u8 *data;
	size_t size;
} g_dev;

static int my_block_open(struct block_device *bdev, fmode_t mode)
{
	pr_info("my_block_open\n");
	return 0;
}

static void my_block_release(struct gendisk *gd, fmode_t mode)
{
	pr_info("my_block_release\n");
}

static const struct block_device_operations my_block_ops = {
	.owner = THIS_MODULE,
	.open = my_block_open,
	.release = my_block_release
};

static void my_block_transfer(struct my_block_dev *dev, sector_t sector,
			      unsigned long len, char *buffer, int dir)
{
	unsigned long offset = sector * KERNEL_SECTOR_SIZE;

	/* check for read/write beyond end of block device */
	if ((offset + len) > dev->size)
		return;

	/* TODO 3: read/write to dev buffer depending on dir */
	if (dir == WRITE) {
		memcpy(dev->data + offset, buffer, len);
	} else {
		memcpy(buffer, dev->data + offset, len);
	}
}

/* to transfer data using bio structures enable USE_BIO_TRANFER */
#if USE_BIO_TRANSFER == 1
static void my_xfer_request(struct my_block_dev *dev, struct request *req)
{
	/* TODO 6: iterate segments */

	/* TODO 6: copy bio data to device buffer */
}
#endif

static blk_status_t my_block_request(struct blk_mq_hw_ctx *hctx,
				     const struct blk_mq_queue_data *bd)
{
	struct request *rq;
	struct my_block_dev *dev = hctx->queue->queuedata;
	struct bio_vec bvec;
	struct req_iterator iter;

	/* TODO 2: get pointer to request */
	rq = bd->rq;

	/* TODO 2: start request processing. */
	blk_mq_start_request(rq);

	/* TODO 2: check fs request. Return if passthrough. */
	if (blk_rq_is_passthrough(rq)) {
		pr_info("passthrough request\n");
		blk_mq_end_request(rq, BLK_STS_IOERR);
		goto out;
	}
	/* TODO 2: print request information */
	pr_info("req: start=%llu tsize=%u dsize=%u dir=%s\n", blk_rq_pos(rq),
		blk_rq_bytes(rq), blk_rq_cur_bytes(rq),
		rq_data_dir(rq) == WRITE ? "write" : "read");
#if USE_BIO_TRANSFER == 1
	/* TODO 6: process the request by calling my_xfer_request */
#else
	/* TODO 3: process the request by calling my_block_transfer */
	rq_for_each_segment (bvec, rq, iter) {
		sector_t sector = iter.iter.bi_sector;
		char *buf = kmap_atomic(bvec.bv_page);
		unsigned long offset = bvec.bv_offset;
		size_t len = bvec.bv_len;
		int dir = bio_data_dir(iter.bio);

		pr_info("bio: sector=%d offset=%d, len=%d dir=%s\n",
			(int)sector, (int)offset, (int)len,
			dir == WRITE ? "write" : "read");

		//my_block_transfer(dev, sector, len, buf + offset, dir);
		kunmap_atomic(buf);
	}
#endif

	/* TODO 2: end request successfully */
	blk_mq_end_request(rq, BLK_STS_OK);
out:
	return BLK_STS_OK;
}

static struct blk_mq_ops my_queue_ops = {
	.queue_rq = my_block_request,
};

static int create_block_device(struct my_block_dev *dev)
{
	int err;

	dev->size = NR_SECTORS * KERNEL_SECTOR_SIZE;
	dev->data = vmalloc(dev->size);
	if (dev->data == NULL) {
		printk(KERN_ERR "vmalloc: out of memory\n");
		err = -ENOMEM;
		goto out_vmalloc;
	}

	/* Initialize tag set. */
	dev->tag_set.ops = &my_queue_ops;
	dev->tag_set.nr_hw_queues = 1;
	dev->tag_set.queue_depth = 128;
	dev->tag_set.numa_node = NUMA_NO_NODE;
	dev->tag_set.cmd_size = 0;
	dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
	err = blk_mq_alloc_tag_set(&dev->tag_set);
	if (err) {
		printk(KERN_ERR
		       "blk_mq_alloc_tag_set: can't allocate tag set\n");
		goto out_alloc_tag_set;
	}

	/* Allocate queue. */
	dev->queue = blk_mq_init_queue(&dev->tag_set);
	if (IS_ERR(dev->queue)) {
		printk(KERN_ERR "blk_mq_init_queue: out of memory\n");
		err = -ENOMEM;
		goto out_blk_init;
	}
	blk_queue_logical_block_size(dev->queue, KERNEL_SECTOR_SIZE);
	dev->queue->queuedata = dev;

	/* initialize the gendisk structure */
	dev->gd = alloc_disk(MY_BLOCK_MINORS);
	if (!dev->gd) {
		printk(KERN_ERR "alloc_disk: failure\n");
		err = -ENOMEM;
		goto out_alloc_disk;
	}

	dev->gd->major = MY_BLOCK_MAJOR;
	dev->gd->first_minor = 0;
	dev->gd->fops = &my_block_ops;
	dev->gd->queue = dev->queue;
	dev->gd->private_data = dev;
	snprintf(dev->gd->disk_name, DISK_NAME_LEN, "myblock");
	set_capacity(dev->gd, NR_SECTORS);

	add_disk(dev->gd);

	return 0;

out_alloc_disk:
	blk_cleanup_queue(dev->queue);
out_blk_init:
	blk_mq_free_tag_set(&dev->tag_set);
out_alloc_tag_set:
	vfree(dev->data);
out_vmalloc:
	return err;
}

static int __init my_block_init(void)
{
	int err = 0;

	/* TODO 1: register block device */
	err = register_blkdev(MY_BLOCK_MAJOR, MY_BLKDEV_NAME);
	if (err < 0) {
		pr_err("fail register\n");
		return -EINVAL;
	}

	/* TODO 2: create block device using create_block_device */
	err = create_block_device(&g_dev);
	return 0;

out:
	/* TODO 2: unregister block device in case of an error */
	unregister_blkdev(MY_BLOCK_MAJOR, MY_BLKDEV_NAME);
	return err;
}

static void delete_block_device(struct my_block_dev *dev)
{
	if (dev->gd) {
		del_gendisk(dev->gd);
		put_disk(dev->gd);
	}

	if (dev->queue)
		blk_cleanup_queue(dev->queue);
	if (dev->tag_set.tags)
		blk_mq_free_tag_set(&dev->tag_set);
	if (dev->data)
		vfree(dev->data);
}

static void __exit my_block_exit(void)
{
	/* TODO 2: cleanup block device using delete_block_device */
	delete_block_device(&g_dev);

	/* TODO 1: unregister block device */
	unregister_blkdev(MY_BLOCK_MAJOR, MY_BLKDEV_NAME);
}

module_init(my_block_init);
module_exit(my_block_exit);

Traceback (most recent call last):
  File "/home/pilot/codes/linux/scripts/gdb/linux/tasks.py", line 79, in invoke
    task.format_string().split()[0],
AttributeError: 'gdb.Value' object has no attribute 'format_string'
Error occurred in Python command: 'gdb.Value' object has no attribute 'format_string'

--- a/scripts/gdb/linux/tasks.py
+++ b/scripts/gdb/linux/tasks.py
@@ -76,9 +76,9 @@ class LxPs(gdb.Command):
         gdb.write("{:>10} {:>12} {:>7}\n".format("TASK", "PID", "COMM"))
         for task in task_lists():
             gdb.write("{} {:^5} {}\n".format(
-                task.format_string().split()[0],
-                task["pid"].format_string(),
-                task["comm"].string()))
+                str(task).split()[0],
+                str(task["pid"]),
+                str(task["comm"].string())))

LABS=assignments/2-uart make skels
make build

dirname: missing operand
Try 'dirname --help' for more information.

$ sudo apt update
$ sudo apt install -y flex bison build-essential gcc-multilib libncurses5-dev qemu-system-x86 qemu-system-arm qemu-kvm python3 minicom
$ git clone https://github.com/linux-kernel-labs/linux --depth 1
$ cd linux/tools/labs
$ make boot

cp qemu/kernel_config.x86 /home/mahmoud/dev/linux/.config
make -C /home/mahmoud/dev/linux oldnoconfig
make[1]: Entering directory '/home/mahmoud/dev/linux'
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  YACC    scripts/kconfig/zconf.tab.c
  LEX     scripts/kconfig/zconf.lex.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf  --olddefconfig Kconfig
#
# configuration written to .config
#
  WARNING: "oldnoconfig" target will be removed after Linux 4.19
            Please use "olddefconfig" instead, which is an alias.
make[1]: Leaving directory '/home/mahmoud/dev/linux'
make -C /home/mahmoud/dev/linux
make[1]: Entering directory '/home/mahmoud/dev/linux'
  SYSTBL  arch/x86/include/generated/asm/syscalls_32.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_32.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_64.h
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_x32.h
  HOSTCC  arch/x86/tools/relocs_32.o
  HOSTCC  arch/x86/tools/relocs_64.o
  HOSTCC  arch/x86/tools/relocs_common.o
  HOSTLD  arch/x86/tools/relocs
  UPD     include/config/kernel.release
  WRAP    arch/x86/include/generated/uapi/asm/bpf_perf_event.h
  WRAP    arch/x86/include/generated/uapi/asm/poll.h
  WRAP    arch/x86/include/generated/asm/dma-contiguous.h
  WRAP    arch/x86/include/generated/asm/early_ioremap.h
  WRAP    arch/x86/include/generated/asm/export.h
  WRAP    arch/x86/include/generated/asm/mcs_spinlock.h
  WRAP    arch/x86/include/generated/asm/mm-arch-hooks.h
  UPD     include/generated/uapi/linux/version.h
  UPD     include/generated/utsrelease.h
  UPD     include/generated/timeconst.h
  CC      kernel/bounds.s
In file included from ./include/asm-generic/bug.h:5,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/compiler.h: In function ‘__read_once_size’:
./include/linux/compiler.h:187:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  187 | {
      | ^
./include/linux/compiler.h: In function ‘__read_once_size_nocheck’:
./include/linux/compiler.h:205:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  205 | {
      | ^
./include/linux/compiler.h: In function ‘__write_once_size’:
./include/linux/compiler.h:210:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  210 | {
      | ^
In file included from ./include/linux/compiler.h:245,
                 from ./include/asm-generic/bug.h:5,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./arch/x86/include/asm/barrier.h: In function ‘array_index_mask_nospec’:
./arch/x86/include/asm/barrier.h:38:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   38 | {
      | ^
In file included from ./include/linux/compiler.h:246,
                 from ./include/asm-generic/bug.h:5,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/kasan-checks.h: In function ‘kasan_check_read’:
./include/linux/kasan-checks.h:10:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   10 | { }
      | ^
./include/linux/kasan-checks.h: In function ‘kasan_check_write’:
./include/linux/kasan-checks.h:12:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   12 | { }
      | ^
In file included from ./include/asm-generic/bug.h:5,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/compiler.h: In function ‘read_word_at_a_time’:
./include/linux/compiler.h:268:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  268 | {
      | ^
./include/linux/compiler.h: In function ‘offset_to_ptr’:
./include/linux/compiler.h:298:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  298 | {
      | ^
In file included from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./arch/x86/include/asm/bitops.h: In function ‘set_bit’:
./arch/x86/include/asm/bitops.h:74:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   74 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__set_bit’:
./arch/x86/include/asm/bitops.h:96:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   96 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘clear_bit’:
./arch/x86/include/asm/bitops.h:112:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  112 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘clear_bit_unlock’:
./arch/x86/include/asm/bitops.h:133:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  133 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__clear_bit’:
./arch/x86/include/asm/bitops.h:139:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  139 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘clear_bit_unlock_is_negative_byte’:
./arch/x86/include/asm/bitops.h:144:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  144 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__clear_bit_unlock’:
./arch/x86/include/asm/bitops.h:169:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  169 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__change_bit’:
./arch/x86/include/asm/bitops.h:184:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  184 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘change_bit’:
./arch/x86/include/asm/bitops.h:198:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  198 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘test_and_set_bit’:
./arch/x86/include/asm/bitops.h:219:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  219 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘test_and_set_bit_lock’:
./arch/x86/include/asm/bitops.h:233:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  233 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__test_and_set_bit’:
./arch/x86/include/asm/bitops.h:247:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  247 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘test_and_clear_bit’:
./arch/x86/include/asm/bitops.h:266:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  266 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__test_and_clear_bit’:
./arch/x86/include/asm/bitops.h:288:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  288 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__test_and_change_bit’:
./arch/x86/include/asm/bitops.h:300:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  300 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘test_and_change_bit’:
./arch/x86/include/asm/bitops.h:320:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  320 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘constant_test_bit’:
./arch/x86/include/asm/bitops.h:326:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  326 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘variable_test_bit’:
./arch/x86/include/asm/bitops.h:332:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  332 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__ffs’:
./arch/x86/include/asm/bitops.h:364:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  364 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘ffz’:
./arch/x86/include/asm/bitops.h:378:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  378 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘__fls’:
./arch/x86/include/asm/bitops.h:392:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  392 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘ffs’:
./arch/x86/include/asm/bitops.h:414:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  414 | {
      | ^
./arch/x86/include/asm/bitops.h: In function ‘fls’:
./arch/x86/include/asm/bitops.h:455:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  455 | {
      | ^
In file included from ./arch/x86/include/asm/bitops.h:510,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/asm-generic/bitops/fls64.h: In function ‘fls64’:
./include/asm-generic/bitops/fls64.h:20:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   20 | {
      | ^
In file included from ./arch/x86/include/asm/bitops.h:515,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/asm-generic/bitops/sched.h: In function ‘sched_find_first_bit’:
./include/asm-generic/bitops/sched.h:14:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   14 | {
      | ^
In file included from ./arch/x86/include/asm/bitops.h:517,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./arch/x86/include/asm/arch_hweight.h: In function ‘__arch_hweight32’:
./arch/x86/include/asm/arch_hweight.h:24:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   24 | {
      | ^
./arch/x86/include/asm/arch_hweight.h: In function ‘__arch_hweight16’:
./arch/x86/include/asm/arch_hweight.h:35:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   35 | {
      | ^
./arch/x86/include/asm/arch_hweight.h: In function ‘__arch_hweight8’:
./arch/x86/include/asm/arch_hweight.h:40:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   40 | {
      | ^
./arch/x86/include/asm/arch_hweight.h: In function ‘__arch_hweight64’:
./arch/x86/include/asm/arch_hweight.h:46:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   46 | {
      | ^
In file included from ./include/uapi/linux/swab.h:7,
                 from ./include/linux/swab.h:5,
                 from ./include/uapi/linux/byteorder/little_endian.h:13,
                 from ./include/linux/byteorder/little_endian.h:5,
                 from ./arch/x86/include/uapi/asm/byteorder.h:5,
                 from ./include/asm-generic/bitops/le.h:6,
                 from ./arch/x86/include/asm/bitops.h:521,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./arch/x86/include/uapi/asm/swab.h: In function ‘__arch_swab32’:
./arch/x86/include/uapi/asm/swab.h:9:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
    9 | {
      | ^
./arch/x86/include/uapi/asm/swab.h: In function ‘__arch_swab64’:
./arch/x86/include/uapi/asm/swab.h:16:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   16 | {
      | ^
In file included from ./include/linux/swab.h:5,
                 from ./include/uapi/linux/byteorder/little_endian.h:13,
                 from ./include/linux/byteorder/little_endian.h:5,
                 from ./arch/x86/include/uapi/asm/byteorder.h:5,
                 from ./include/asm-generic/bitops/le.h:6,
                 from ./arch/x86/include/asm/bitops.h:521,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/uapi/linux/swab.h: In function ‘__fswab16’:
./include/uapi/linux/swab.h:48:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   48 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__fswab32’:
./include/uapi/linux/swab.h:57:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   57 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__fswab64’:
./include/uapi/linux/swab.h:66:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   66 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__fswahw32’:
./include/uapi/linux/swab.h:79:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   79 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__fswahb32’:
./include/uapi/linux/swab.h:88:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   88 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab16p’:
./include/uapi/linux/swab.h:162:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  162 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab32p’:
./include/uapi/linux/swab.h:175:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  175 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab64p’:
./include/uapi/linux/swab.h:188:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  188 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swahw32p’:
./include/uapi/linux/swab.h:203:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  203 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swahb32p’:
./include/uapi/linux/swab.h:218:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  218 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab16s’:
./include/uapi/linux/swab.h:231:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  231 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab32s’:
./include/uapi/linux/swab.h:243:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  243 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swab64s’:
./include/uapi/linux/swab.h:256:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  256 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swahw32s’:
./include/uapi/linux/swab.h:271:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  271 | {
      | ^
./include/uapi/linux/swab.h: In function ‘__swahb32s’:
./include/uapi/linux/swab.h:286:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  286 | {
      | ^
In file included from ./include/linux/byteorder/little_endian.h:5,
                 from ./arch/x86/include/uapi/asm/byteorder.h:5,
                 from ./include/asm-generic/bitops/le.h:6,
                 from ./arch/x86/include/asm/bitops.h:521,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_le64p’:
./include/uapi/linux/byteorder/little_endian.h:45:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   45 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__le64_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:49:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   49 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_le32p’:
./include/uapi/linux/byteorder/little_endian.h:53:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   53 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__le32_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:57:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   57 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_le16p’:
./include/uapi/linux/byteorder/little_endian.h:61:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   61 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__le16_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:65:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   65 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_be64p’:
./include/uapi/linux/byteorder/little_endian.h:69:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   69 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__be64_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:73:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   73 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_be32p’:
./include/uapi/linux/byteorder/little_endian.h:77:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   77 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__be32_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:81:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   81 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__cpu_to_be16p’:
./include/uapi/linux/byteorder/little_endian.h:85:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   85 | {
      | ^
./include/uapi/linux/byteorder/little_endian.h: In function ‘__be16_to_cpup’:
./include/uapi/linux/byteorder/little_endian.h:89:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   89 | {
      | ^
In file included from ./include/linux/byteorder/little_endian.h:11,
                 from ./arch/x86/include/uapi/asm/byteorder.h:5,
                 from ./include/asm-generic/bitops/le.h:6,
                 from ./arch/x86/include/asm/bitops.h:521,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/byteorder/generic.h: In function ‘le16_add_cpu’:
./include/linux/byteorder/generic.h:145:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  145 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘le32_add_cpu’:
./include/linux/byteorder/generic.h:150:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  150 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘le64_add_cpu’:
./include/linux/byteorder/generic.h:155:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  155 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘le32_to_cpu_array’:
./include/linux/byteorder/generic.h:161:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  161 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘cpu_to_le32_array’:
./include/linux/byteorder/generic.h:169:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  169 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘be16_add_cpu’:
./include/linux/byteorder/generic.h:177:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  177 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘be32_add_cpu’:
./include/linux/byteorder/generic.h:182:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  182 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘be64_add_cpu’:
./include/linux/byteorder/generic.h:187:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  187 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘cpu_to_be32_array’:
./include/linux/byteorder/generic.h:192:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  192 | {
      | ^
./include/linux/byteorder/generic.h: In function ‘be32_to_cpu_array’:
./include/linux/byteorder/generic.h:200:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  200 | {
      | ^
In file included from ./arch/x86/include/asm/bitops.h:521,
                 from ./include/linux/bitops.h:19,
                 from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/asm-generic/bitops/le.h: In function ‘find_next_zero_bit_le’:
./include/asm-generic/bitops/le.h:14:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   14 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘find_next_bit_le’:
./include/asm-generic/bitops/le.h:20:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   20 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘find_first_zero_bit_le’:
./include/asm-generic/bitops/le.h:26:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   26 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘test_bit_le’:
./include/asm-generic/bitops/le.h:54:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   54 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘set_bit_le’:
./include/asm-generic/bitops/le.h:59:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   59 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘clear_bit_le’:
./include/asm-generic/bitops/le.h:64:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   64 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘__set_bit_le’:
./include/asm-generic/bitops/le.h:69:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   69 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘__clear_bit_le’:
./include/asm-generic/bitops/le.h:74:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   74 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘test_and_set_bit_le’:
./include/asm-generic/bitops/le.h:79:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   79 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘test_and_clear_bit_le’:
./include/asm-generic/bitops/le.h:84:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   84 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘__test_and_set_bit_le’:
./include/asm-generic/bitops/le.h:89:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   89 | {
      | ^
./include/asm-generic/bitops/le.h: In function ‘__test_and_clear_bit_le’:
./include/asm-generic/bitops/le.h:94:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   94 | {
      | ^
In file included from ./include/linux/kernel.h:11,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/bitops.h: In function ‘get_bitmask_order’:
./include/linux/bitops.h:44:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   44 | {
      | ^
./include/linux/bitops.h: In function ‘hweight_long’:
./include/linux/bitops.h:52:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   52 | {
      | ^
./include/linux/bitops.h: In function ‘rol64’:
./include/linux/bitops.h:62:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   62 | {
      | ^
./include/linux/bitops.h: In function ‘ror64’:
./include/linux/bitops.h:72:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   72 | {
      | ^
./include/linux/bitops.h: In function ‘rol32’:
./include/linux/bitops.h:82:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   82 | {
      | ^
./include/linux/bitops.h: In function ‘ror32’:
./include/linux/bitops.h:92:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   92 | {
      | ^
./include/linux/bitops.h: In function ‘rol16’:
./include/linux/bitops.h:102:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  102 | {
      | ^
./include/linux/bitops.h: In function ‘ror16’:
./include/linux/bitops.h:112:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  112 | {
      | ^
./include/linux/bitops.h: In function ‘rol8’:
./include/linux/bitops.h:122:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  122 | {
      | ^
./include/linux/bitops.h: In function ‘ror8’:
./include/linux/bitops.h:132:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  132 | {
      | ^
./include/linux/bitops.h: In function ‘sign_extend32’:
./include/linux/bitops.h:144:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  144 | {
      | ^
./include/linux/bitops.h: In function ‘sign_extend64’:
./include/linux/bitops.h:155:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  155 | {
      | ^
./include/linux/bitops.h: In function ‘fls_long’:
./include/linux/bitops.h:161:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  161 | {
      | ^
./include/linux/bitops.h: In function ‘get_count_order’:
./include/linux/bitops.h:168:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  168 | {
      | ^
./include/linux/bitops.h: In function ‘get_count_order_long’:
./include/linux/bitops.h:184:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  184 | {
      | ^
./include/linux/bitops.h: In function ‘__ffs64’:
./include/linux/bitops.h:202:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  202 | {
      | ^
./include/linux/bitops.h: In function ‘assign_bit’:
./include/linux/bitops.h:220:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  220 | {
      | ^
./include/linux/bitops.h: In function ‘__assign_bit’:
./include/linux/bitops.h:229:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  229 | {
      | ^
In file included from ./include/linux/kernel.h:12,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/log2.h: In function ‘__ilog2_u32’:
./include/linux/log2.h:27:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   27 | {
      | ^
./include/linux/log2.h: In function ‘__ilog2_u64’:
./include/linux/log2.h:35:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   35 | {
      | ^
./include/linux/log2.h: In function ‘is_power_of_2’:
./include/linux/log2.h:50:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   50 | {
      | ^
./include/linux/log2.h: In function ‘__roundup_pow_of_two’:
./include/linux/log2.h:60:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   60 | {
      | ^
./include/linux/log2.h: In function ‘__rounddown_pow_of_two’:
./include/linux/log2.h:70:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   70 | {
      | ^
./include/linux/log2.h: In function ‘__order_base_2’:
./include/linux/log2.h:203:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  203 | {
      | ^
In file included from ./include/linux/printk.h:6,
                 from ./include/linux/kernel.h:14,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/init.h: In function ‘initcall_from_entry’:
./include/linux/init.h:123:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  123 | {
      | ^
In file included from ./include/linux/kernel.h:14,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/printk.h: In function ‘printk_get_level’:
./include/linux/printk.h:17:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   17 | {
      | ^
./include/linux/printk.h: In function ‘printk_skip_level’:
./include/linux/printk.h:30:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   30 | {
      | ^
./include/linux/printk.h: In function ‘printk_skip_headers’:
./include/linux/printk.h:38:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   38 | {
      | ^
./include/linux/printk.h: In function ‘console_silent’:
./include/linux/printk.h:71:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   71 | {
      | ^
./include/linux/printk.h: In function ‘console_verbose’:
./include/linux/printk.h:76:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   76 | {
      | ^
./include/linux/printk.h: In function ‘print_hex_dump_debug’:
./include/linux/printk.h:529:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  529 | {
      | ^
In file included from ./include/linux/kernel.h:207,
                 from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./arch/x86/include/asm/div64.h: In function ‘div_u64_rem’:
./arch/x86/include/asm/div64.h:44:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   44 | {
      | ^
./arch/x86/include/asm/div64.h: In function ‘mul_u32_u32’:
./arch/x86/include/asm/div64.h:64:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   64 | {
      | ^
In file included from ./include/asm-generic/bug.h:18,
                 from ./arch/x86/include/asm/bug.h:83,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/kernel.h: In function ‘reciprocal_scale’:
./include/linux/kernel.h:312:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  312 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtoul’:
./include/linux/kernel.h:367:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  367 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtol’:
./include/linux/kernel.h:396:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  396 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtou64’:
./include/linux/kernel.h:412:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  412 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtos64’:
./include/linux/kernel.h:417:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  417 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtou32’:
./include/linux/kernel.h:422:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  422 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtos32’:
./include/linux/kernel.h:427:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  427 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtou64_from_user’:
./include/linux/kernel.h:450:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  450 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtos64_from_user’:
./include/linux/kernel.h:455:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  455 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtou32_from_user’:
./include/linux/kernel.h:460:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  460 | {
      | ^
./include/linux/kernel.h: In function ‘kstrtos32_from_user’:
./include/linux/kernel.h:465:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  465 | {
      | ^
./include/linux/kernel.h: In function ‘set_arch_panic_timeout’:
./include/linux/kernel.h:552:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  552 | {
      | ^
./include/linux/kernel.h: In function ‘hex_byte_pack’:
./include/linux/kernel.h:616:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  616 | {
      | ^
./include/linux/kernel.h: In function ‘hex_byte_pack_upper’:
./include/linux/kernel.h:627:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  627 | {
      | ^
./include/linux/kernel.h: In function ‘____trace_printk_check_format’:
./include/linux/kernel.h:677:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  677 | {
      | ^
In file included from ./include/linux/page-flags.h:10,
                 from kernel/bounds.c:10:
./include/linux/bug.h: In function ‘is_warning_bug’:
./include/linux/bug.h:35:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   35 | {
      | ^
./include/linux/bug.h: In function ‘check_data_corruption’:
./include/linux/bug.h:65:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   65 | static inline __must_check bool check_data_corruption(bool v) { return v; }
      | ^~~~~~
In file included from ./arch/x86/include/asm/cmpxchg.h:143,
                 from ./arch/x86/include/asm/atomic.h:8,
                 from ./include/linux/atomic.h:7,
                 from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./arch/x86/include/asm/cmpxchg_32.h: In function ‘set_64bit’:
./arch/x86/include/asm/cmpxchg_32.h:25:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   25 | {
      | ^
./arch/x86/include/asm/cmpxchg_32.h: In function ‘__cmpxchg64’:
./arch/x86/include/asm/cmpxchg_32.h:48:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   48 | {
      | ^
./arch/x86/include/asm/cmpxchg_32.h: In function ‘__cmpxchg64_local’:
./arch/x86/include/asm/cmpxchg_32.h:61:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   61 | {
      | ^
In file included from ./include/linux/atomic.h:7,
                 from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_read’:
./arch/x86/include/asm/atomic.h:26:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   26 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_set’:
./arch/x86/include/asm/atomic.h:42:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   42 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_add’:
./arch/x86/include/asm/atomic.h:54:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   54 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_sub’:
./arch/x86/include/asm/atomic.h:68:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   68 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_sub_and_test’:
./arch/x86/include/asm/atomic.h:84:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   84 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_inc’:
./arch/x86/include/asm/atomic.h:96:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   96 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_dec’:
./arch/x86/include/asm/atomic.h:109:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  109 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_dec_and_test’:
./arch/x86/include/asm/atomic.h:124:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  124 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_inc_and_test’:
./arch/x86/include/asm/atomic.h:138:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  138 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_add_negative’:
./arch/x86/include/asm/atomic.h:153:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  153 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_add_return’:
./arch/x86/include/asm/atomic.h:166:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  166 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_sub_return’:
./arch/x86/include/asm/atomic.h:178:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  178 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_fetch_add’:
./arch/x86/include/asm/atomic.h:183:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  183 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_fetch_sub’:
./arch/x86/include/asm/atomic.h:188:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  188 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_cmpxchg’:
./arch/x86/include/asm/atomic.h:193:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  193 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_try_cmpxchg’:
./arch/x86/include/asm/atomic.h:199:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  199 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_xchg’:
./arch/x86/include/asm/atomic.h:204:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  204 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_and’:
./arch/x86/include/asm/atomic.h:209:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  209 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_fetch_and’:
./arch/x86/include/asm/atomic.h:217:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  217 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_or’:
./arch/x86/include/asm/atomic.h:226:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  226 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_fetch_or’:
./arch/x86/include/asm/atomic.h:234:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  234 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_xor’:
./arch/x86/include/asm/atomic.h:243:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  243 | {
      | ^
./arch/x86/include/asm/atomic.h: In function ‘arch_atomic_fetch_xor’:
./arch/x86/include/asm/atomic.h:251:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  251 | {
      | ^
In file included from ./arch/x86/include/asm/atomic.h:260,
                 from ./include/linux/atomic.h:7,
                 from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_cmpxchg’:
./arch/x86/include/asm/atomic64_32.h:76:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   76 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_xchg’:
./arch/x86/include/asm/atomic64_32.h:89:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   89 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_set’:
./arch/x86/include/asm/atomic64_32.h:107:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  107 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_read’:
./arch/x86/include/asm/atomic64_32.h:122:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  122 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_add_return’:
./arch/x86/include/asm/atomic64_32.h:136:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  136 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_sub_return’:
./arch/x86/include/asm/atomic64_32.h:147:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  147 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_inc_return’:
./arch/x86/include/asm/atomic64_32.h:155:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  155 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_dec_return’:
./arch/x86/include/asm/atomic64_32.h:164:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  164 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_add’:
./arch/x86/include/asm/atomic64_32.h:180:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  180 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_sub’:
./arch/x86/include/asm/atomic64_32.h:195:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  195 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_inc’:
./arch/x86/include/asm/atomic64_32.h:209:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  209 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_dec’:
./arch/x86/include/asm/atomic64_32.h:222:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  222 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_add_unless’:
./arch/x86/include/asm/atomic64_32.h:239:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  239 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_inc_not_zero’:
./arch/x86/include/asm/atomic64_32.h:249:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  249 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_dec_if_positive’:
./arch/x86/include/asm/atomic64_32.h:258:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  258 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_and’:
./arch/x86/include/asm/atomic64_32.h:270:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  270 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_fetch_and’:
./arch/x86/include/asm/atomic64_32.h:278:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  278 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_or’:
./arch/x86/include/asm/atomic64_32.h:288:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  288 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_fetch_or’:
./arch/x86/include/asm/atomic64_32.h:296:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  296 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_xor’:
./arch/x86/include/asm/atomic64_32.h:306:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  306 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_fetch_xor’:
./arch/x86/include/asm/atomic64_32.h:314:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  314 | {
      | ^
./arch/x86/include/asm/atomic64_32.h: In function ‘arch_atomic64_fetch_add’:
./arch/x86/include/asm/atomic64_32.h:324:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  324 | {
      | ^
In file included from ./arch/x86/include/asm/atomic.h:265,
                 from ./include/linux/atomic.h:7,
                 from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_read’:
./include/asm-generic/atomic-instrumented.h:20:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   20 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_read’:
./include/asm-generic/atomic-instrumented.h:26:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   26 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_set’:
./include/asm-generic/atomic-instrumented.h:32:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   32 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_set’:
./include/asm-generic/atomic-instrumented.h:38:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   38 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_xchg’:
./include/asm-generic/atomic-instrumented.h:44:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   44 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_xchg’:
./include/asm-generic/atomic-instrumented.h:50:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   50 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_cmpxchg’:
./include/asm-generic/atomic-instrumented.h:56:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   56 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_cmpxchg’:
./include/asm-generic/atomic-instrumented.h:62:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   62 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_try_cmpxchg’:
./include/asm-generic/atomic-instrumented.h:70:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   70 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_inc’:
./include/asm-generic/atomic-instrumented.h:108:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  108 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_inc’:
./include/asm-generic/atomic-instrumented.h:117:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  117 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_dec’:
./include/asm-generic/atomic-instrumented.h:126:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  126 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_add’:
./include/asm-generic/atomic-instrumented.h:142:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  142 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_add’:
./include/asm-generic/atomic-instrumented.h:148:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  148 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_sub’:
./include/asm-generic/atomic-instrumented.h:154:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  154 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_sub’:
./include/asm-generic/atomic-instrumented.h:160:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  160 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_and’:
./include/asm-generic/atomic-instrumented.h:166:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  166 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_and’:
./include/asm-generic/atomic-instrumented.h:172:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  172 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_or’:
./include/asm-generic/atomic-instrumented.h:178:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  178 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_or’:
./include/asm-generic/atomic-instrumented.h:184:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  184 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_xor’:
./include/asm-generic/atomic-instrumented.h:190:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  190 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_xor’:
./include/asm-generic/atomic-instrumented.h:196:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  196 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_dec_return’:
./include/asm-generic/atomic-instrumented.h:231:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  231 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_inc_not_zero’:
./include/asm-generic/atomic-instrumented.h:240:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  240 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_dec_if_positive’:
./include/asm-generic/atomic-instrumented.h:249:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  249 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_dec_and_test’:
./include/asm-generic/atomic-instrumented.h:258:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  258 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_inc_and_test’:
./include/asm-generic/atomic-instrumented.h:276:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  276 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_add_return’:
./include/asm-generic/atomic-instrumented.h:292:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  292 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_add_return’:
./include/asm-generic/atomic-instrumented.h:298:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  298 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_sub_return’:
./include/asm-generic/atomic-instrumented.h:304:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  304 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_sub_return’:
./include/asm-generic/atomic-instrumented.h:310:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  310 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_fetch_add’:
./include/asm-generic/atomic-instrumented.h:316:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  316 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_fetch_add’:
./include/asm-generic/atomic-instrumented.h:322:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  322 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_fetch_sub’:
./include/asm-generic/atomic-instrumented.h:328:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  328 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_fetch_sub’:
./include/asm-generic/atomic-instrumented.h:334:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  334 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_fetch_and’:
./include/asm-generic/atomic-instrumented.h:340:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  340 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_fetch_and’:
./include/asm-generic/atomic-instrumented.h:346:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  346 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_fetch_or’:
./include/asm-generic/atomic-instrumented.h:352:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  352 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_fetch_or’:
./include/asm-generic/atomic-instrumented.h:358:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  358 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_fetch_xor’:
./include/asm-generic/atomic-instrumented.h:364:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  364 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic64_fetch_xor’:
./include/asm-generic/atomic-instrumented.h:370:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  370 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_sub_and_test’:
./include/asm-generic/atomic-instrumented.h:378:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  378 | {
      | ^
./include/asm-generic/atomic-instrumented.h: In function ‘atomic_add_negative’:
./include/asm-generic/atomic-instrumented.h:396:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  396 | {
      | ^
In file included from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./include/linux/atomic.h: In function ‘atomic_fetch_add_unless’:
./include/linux/atomic.h:574:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  574 | {
      | ^
./include/linux/atomic.h: In function ‘atomic_add_unless’:
./include/linux/atomic.h:596:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  596 | {
      | ^
./include/linux/atomic.h: In function ‘atomic_inc_unless_negative’:
./include/linux/atomic.h:675:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  675 | {
      | ^
./include/linux/atomic.h: In function ‘atomic_dec_unless_positive’:
./include/linux/atomic.h:689:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  689 | {
      | ^
./include/linux/atomic.h: In function ‘atomic_dec_if_positive’:
./include/linux/atomic.h:710:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  710 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_fetch_add_unless’:
./include/linux/atomic.h:1163:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1163 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_add_unless’:
./include/linux/atomic.h:1185:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1185 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_inc_and_test’:
./include/linux/atomic.h:1210:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1210 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_dec_and_test’:
./include/linux/atomic.h:1225:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1225 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_sub_and_test’:
./include/linux/atomic.h:1241:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1241 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_add_negative’:
./include/linux/atomic.h:1257:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1257 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_inc_unless_negative’:
./include/linux/atomic.h:1264:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1264 | {
      | ^
./include/linux/atomic.h: In function ‘atomic64_dec_unless_positive’:
./include/linux/atomic.h:1278:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
 1278 | {
      | ^
In file included from ./include/linux/atomic.h:1315,
                 from ./include/asm-generic/qspinlock_types.h:28,
                 from ./arch/x86/include/asm/spinlock_types.h:27,
                 from ./include/linux/spinlock_types.h:13,
                 from kernel/bounds.c:14:
./include/asm-generic/atomic-long.h: In function ‘atomic_long_read’:
./include/asm-generic/atomic-long.h:47:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   47 | ATOMIC_LONG_READ_OP()
      | ^~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_read_acquire’:
./include/asm-generic/atomic-long.h:48:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   48 | ATOMIC_LONG_READ_OP(_acquire)
      | ^~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_set’:
./include/asm-generic/atomic-long.h:59:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   59 | ATOMIC_LONG_SET_OP()
      | ^~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_set_release’:
./include/asm-generic/atomic-long.h:60:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   60 | ATOMIC_LONG_SET_OP(_release)
      | ^~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_return’:
./include/asm-generic/atomic-long.h:72:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   72 | ATOMIC_LONG_ADD_SUB_OP(add,)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_return_relaxed’:
./include/asm-generic/atomic-long.h:73:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   73 | ATOMIC_LONG_ADD_SUB_OP(add, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_return_acquire’:
./include/asm-generic/atomic-long.h:74:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   74 | ATOMIC_LONG_ADD_SUB_OP(add, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_return_release’:
./include/asm-generic/atomic-long.h:75:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   75 | ATOMIC_LONG_ADD_SUB_OP(add, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub_return’:
./include/asm-generic/atomic-long.h:76:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   76 | ATOMIC_LONG_ADD_SUB_OP(sub,)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub_return_relaxed’:
./include/asm-generic/atomic-long.h:77:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   77 | ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub_return_acquire’:
./include/asm-generic/atomic-long.h:78:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   78 | ATOMIC_LONG_ADD_SUB_OP(sub, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub_return_release’:
./include/asm-generic/atomic-long.h:79:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   79 | ATOMIC_LONG_ADD_SUB_OP(sub, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc’:
./include/asm-generic/atomic-long.h:120:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  120 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec’:
./include/asm-generic/atomic-long.h:127:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  127 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_add’:
./include/asm-generic/atomic-long.h:142:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  142 | ATOMIC_LONG_FETCH_OP(add, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_add_relaxed’:
./include/asm-generic/atomic-long.h:143:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  143 | ATOMIC_LONG_FETCH_OP(add, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_add_acquire’:
./include/asm-generic/atomic-long.h:144:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  144 | ATOMIC_LONG_FETCH_OP(add, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_add_release’:
./include/asm-generic/atomic-long.h:145:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  145 | ATOMIC_LONG_FETCH_OP(add, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_sub’:
./include/asm-generic/atomic-long.h:146:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  146 | ATOMIC_LONG_FETCH_OP(sub, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_sub_relaxed’:
./include/asm-generic/atomic-long.h:147:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  147 | ATOMIC_LONG_FETCH_OP(sub, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_sub_acquire’:
./include/asm-generic/atomic-long.h:148:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  148 | ATOMIC_LONG_FETCH_OP(sub, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_sub_release’:
./include/asm-generic/atomic-long.h:149:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  149 | ATOMIC_LONG_FETCH_OP(sub, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_and’:
./include/asm-generic/atomic-long.h:150:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  150 | ATOMIC_LONG_FETCH_OP(and, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_and_relaxed’:
./include/asm-generic/atomic-long.h:151:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  151 | ATOMIC_LONG_FETCH_OP(and, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_and_acquire’:
./include/asm-generic/atomic-long.h:152:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  152 | ATOMIC_LONG_FETCH_OP(and, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_and_release’:
./include/asm-generic/atomic-long.h:153:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  153 | ATOMIC_LONG_FETCH_OP(and, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_andnot’:
./include/asm-generic/atomic-long.h:154:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  154 | ATOMIC_LONG_FETCH_OP(andnot, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_andnot_relaxed’:
./include/asm-generic/atomic-long.h:155:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  155 | ATOMIC_LONG_FETCH_OP(andnot, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_andnot_acquire’:
./include/asm-generic/atomic-long.h:156:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  156 | ATOMIC_LONG_FETCH_OP(andnot, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_andnot_release’:
./include/asm-generic/atomic-long.h:157:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  157 | ATOMIC_LONG_FETCH_OP(andnot, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_or’:
./include/asm-generic/atomic-long.h:158:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  158 | ATOMIC_LONG_FETCH_OP(or, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_or_relaxed’:
./include/asm-generic/atomic-long.h:159:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  159 | ATOMIC_LONG_FETCH_OP(or, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_or_acquire’:
./include/asm-generic/atomic-long.h:160:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  160 | ATOMIC_LONG_FETCH_OP(or, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_or_release’:
./include/asm-generic/atomic-long.h:161:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  161 | ATOMIC_LONG_FETCH_OP(or, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_xor’:
./include/asm-generic/atomic-long.h:162:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  162 | ATOMIC_LONG_FETCH_OP(xor, )
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_xor_relaxed’:
./include/asm-generic/atomic-long.h:163:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  163 | ATOMIC_LONG_FETCH_OP(xor, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_xor_acquire’:
./include/asm-generic/atomic-long.h:164:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  164 | ATOMIC_LONG_FETCH_OP(xor, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_xor_release’:
./include/asm-generic/atomic-long.h:165:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  165 | ATOMIC_LONG_FETCH_OP(xor, _release)
      | ^~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_inc’:
./include/asm-generic/atomic-long.h:178:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  178 | ATOMIC_LONG_FETCH_INC_DEC_OP(inc,)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_inc_relaxed’:
./include/asm-generic/atomic-long.h:179:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  179 | ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_inc_acquire’:
./include/asm-generic/atomic-long.h:180:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  180 | ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_inc_release’:
./include/asm-generic/atomic-long.h:181:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  181 | ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_dec’:
./include/asm-generic/atomic-long.h:182:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  182 | ATOMIC_LONG_FETCH_INC_DEC_OP(dec,)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_dec_relaxed’:
./include/asm-generic/atomic-long.h:183:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  183 | ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_dec_acquire’:
./include/asm-generic/atomic-long.h:184:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  184 | ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_fetch_dec_release’:
./include/asm-generic/atomic-long.h:185:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  185 | ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add’:
./include/asm-generic/atomic-long.h:198:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  198 | ATOMIC_LONG_OP(add)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub’:
./include/asm-generic/atomic-long.h:199:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  199 | ATOMIC_LONG_OP(sub)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_and’:
./include/asm-generic/atomic-long.h:200:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  200 | ATOMIC_LONG_OP(and)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_andnot’:
./include/asm-generic/atomic-long.h:201:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  201 | ATOMIC_LONG_OP(andnot)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_or’:
./include/asm-generic/atomic-long.h:202:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  202 | ATOMIC_LONG_OP(or)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_xor’:
./include/asm-generic/atomic-long.h:203:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  203 | ATOMIC_LONG_OP(xor)
      | ^~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_sub_and_test’:
./include/asm-generic/atomic-long.h:208:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  208 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec_and_test’:
./include/asm-generic/atomic-long.h:215:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  215 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc_and_test’:
./include/asm-generic/atomic-long.h:222:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  222 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_negative’:
./include/asm-generic/atomic-long.h:229:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  229 | {
      | ^
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc_return’:
./include/asm-generic/atomic-long.h:243:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  243 | ATOMIC_LONG_INC_DEC_OP(inc,)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc_return_relaxed’:
./include/asm-generic/atomic-long.h:244:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  244 | ATOMIC_LONG_INC_DEC_OP(inc, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc_return_acquire’:
./include/asm-generic/atomic-long.h:245:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  245 | ATOMIC_LONG_INC_DEC_OP(inc, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_inc_return_release’:
./include/asm-generic/atomic-long.h:246:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  246 | ATOMIC_LONG_INC_DEC_OP(inc, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec_return’:
./include/asm-generic/atomic-long.h:247:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  247 | ATOMIC_LONG_INC_DEC_OP(dec,)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec_return_relaxed’:
./include/asm-generic/atomic-long.h:248:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  248 | ATOMIC_LONG_INC_DEC_OP(dec, _relaxed)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec_return_acquire’:
./include/asm-generic/atomic-long.h:249:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  249 | ATOMIC_LONG_INC_DEC_OP(dec, _acquire)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_dec_return_release’:
./include/asm-generic/atomic-long.h:250:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  250 | ATOMIC_LONG_INC_DEC_OP(dec, _release)
      | ^~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/atomic-long.h: In function ‘atomic_long_add_unless’:
./include/asm-generic/atomic-long.h:255:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  255 | {
      | ^
In file included from ./include/linux/lockdep.h:27,
                 from ./include/linux/spinlock_types.h:18,
                 from kernel/bounds.c:14:
./include/linux/list.h: In function ‘INIT_LIST_HEAD’:
./include/linux/list.h:27:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   27 | {
      | ^
./include/linux/list.h: In function ‘__list_add_valid’:
./include/linux/list.h:41:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   41 | {
      | ^
./include/linux/list.h: In function ‘__list_del_entry_valid’:
./include/linux/list.h:45:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   45 | {
      | ^
./include/linux/list.h: In function ‘__list_add’:
./include/linux/list.h:59:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   59 | {
      | ^
./include/linux/list.h: In function ‘list_add’:
./include/linux/list.h:78:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   78 | {
      | ^
./include/linux/list.h: In function ‘list_add_tail’:
./include/linux/list.h:92:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   92 | {
      | ^
./include/linux/list.h: In function ‘__list_del’:
./include/linux/list.h:104:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  104 | {
      | ^
./include/linux/list.h: In function ‘__list_del_entry’:
./include/linux/list.h:116:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  116 | {
      | ^
./include/linux/list.h: In function ‘list_del’:
./include/linux/list.h:124:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  124 | {
      | ^
./include/linux/list.h: In function ‘list_replace’:
./include/linux/list.h:139:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  139 | {
      | ^
./include/linux/list.h: In function ‘list_replace_init’:
./include/linux/list.h:148:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  148 | {
      | ^
./include/linux/list.h: In function ‘list_del_init’:
./include/linux/list.h:158:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  158 | {
      | ^
./include/linux/list.h: In function ‘list_move’:
./include/linux/list.h:169:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  169 | {
      | ^
./include/linux/list.h: In function ‘list_move_tail’:
./include/linux/list.h:181:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  181 | {
      | ^
./include/linux/list.h: In function ‘list_is_last’:
./include/linux/list.h:193:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  193 | {
      | ^
./include/linux/list.h: In function ‘list_empty’:
./include/linux/list.h:202:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  202 | {
      | ^
./include/linux/list.h: In function ‘list_empty_careful’:
./include/linux/list.h:220:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  220 | {
      | ^
./include/linux/list.h: In function ‘list_rotate_left’:
./include/linux/list.h:230:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  230 | {
      | ^
./include/linux/list.h: In function ‘list_is_singular’:
./include/linux/list.h:244:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  244 | {
      | ^
./include/linux/list.h: In function ‘__list_cut_position’:
./include/linux/list.h:250:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  250 | {
      | ^
./include/linux/list.h: In function ‘list_cut_position’:
./include/linux/list.h:276:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  276 | {
      | ^
./include/linux/list.h: In function ‘list_cut_before’:
./include/linux/list.h:305:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  305 | {
      | ^
./include/linux/list.h: In function ‘__list_splice’:
./include/linux/list.h:321:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  321 | {
      | ^
./include/linux/list.h: In function ‘list_splice’:
./include/linux/list.h:339:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  339 | {
      | ^
./include/linux/list.h: In function ‘list_splice_tail’:
./include/linux/list.h:351:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  351 | {
      | ^
./include/linux/list.h: In function ‘list_splice_init’:
./include/linux/list.h:365:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  365 | {
      | ^
./include/linux/list.h: In function ‘list_splice_tail_init’:
./include/linux/list.h:382:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  382 | {
      | ^
./include/linux/list.h: In function ‘INIT_HLIST_NODE’:
./include/linux/list.h:659:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  659 | {
      | ^
./include/linux/list.h: In function ‘hlist_unhashed’:
./include/linux/list.h:665:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  665 | {
      | ^
./include/linux/list.h: In function ‘hlist_empty’:
./include/linux/list.h:670:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  670 | {
      | ^
./include/linux/list.h: In function ‘__hlist_del’:
./include/linux/list.h:675:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  675 | {
      | ^
./include/linux/list.h: In function ‘hlist_del’:
./include/linux/list.h:685:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  685 | {
      | ^
./include/linux/list.h: In function ‘hlist_del_init’:
./include/linux/list.h:692:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  692 | {
      | ^
./include/linux/list.h: In function ‘hlist_add_head’:
./include/linux/list.h:700:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  700 | {
      | ^
./include/linux/list.h: In function ‘hlist_add_before’:
./include/linux/list.h:712:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  712 | {
      | ^
./include/linux/list.h: In function ‘hlist_add_behind’:
./include/linux/list.h:721:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  721 | {
      | ^
./include/linux/list.h: In function ‘hlist_add_fake’:
./include/linux/list.h:732:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  732 | {
      | ^
./include/linux/list.h: In function ‘hlist_fake’:
./include/linux/list.h:737:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  737 | {
      | ^
./include/linux/list.h: In function ‘hlist_is_singular_node’:
./include/linux/list.h:747:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  747 | {
      | ^
./include/linux/list.h: In function ‘hlist_move_list’:
./include/linux/list.h:757:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  757 | {
      | ^
In file included from ./include/linux/lockdep.h:28,
                 from ./include/linux/spinlock_types.h:18,
                 from kernel/bounds.c:14:
./include/linux/debug_locks.h: In function ‘__debug_locks_off’:
./include/linux/debug_locks.h:16:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   16 | {
      | ^
In file included from ./include/linux/spinlock_types.h:18,
                 from kernel/bounds.c:14:
./include/linux/lockdep.h: In function ‘lockdep_copy_map’:
./include/linux/lockdep.h:165:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  165 | {
      | ^
./include/linux/lockdep.h: In function ‘lockdep_match_key’:
./include/linux/lockdep.h:312:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  312 | {
      | ^
./include/linux/lockdep.h: In function ‘lock_is_held’:
./include/linux/lockdep.h:343:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  343 | {
      | ^
./include/linux/lockdep.h: In function ‘lock_set_subclass’:
./include/linux/lockdep.h:356:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  356 | {
      | ^
./include/linux/lockdep.h: In function ‘lockdep_invariant_state’:
./include/linux/lockdep.h:475:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  475 | static inline void lockdep_invariant_state(bool force) {}
      | ^~~~~~
./include/linux/lockdep.h: In function ‘lockdep_init_task’:
./include/linux/lockdep.h:476:45: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  476 | static inline void lockdep_init_task(struct task_struct *task) {}
      |                                             ^~~~~~~~~~~
./include/linux/lockdep.h: In function ‘lockdep_free_task’:
./include/linux/lockdep.h:477:45: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
  477 | static inline void lockdep_free_task(struct task_struct *task) {}
      |                                             ^~~~~~~~~~~
kernel/bounds.c: In function ‘foo’:
kernel/bounds.c:17:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible
   17 | {
      | ^
make[2]: *** [Kbuild:21: kernel/bounds.s] Error 1
make[1]: *** [Makefile:1102: prepare0] Error 2
make[1]: Leaving directory '/home/mahmoud/dev/linux'
make: *** [qemu/Makefile:42: /home/mahmoud/dev/linux/arch/x86/boot/bzImage] Error 2

p: error writing '/tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/lz4hc.ko': No space left on device
  INSTALL crypto/md4.ko
cp: error writing '/tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/md4.ko': No space left on device
  INSTALL crypto/michael_mic.ko
cp: error writing '/tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/michael_mic.ko': No space left on device
  INSTALL crypto/morus1280.ko
cp: error writing '/tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/morus1280.ko': No space left on device
  INSTALL crypto/morus640.ko
cp: error writing '/tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/morus640.ko': No space left on device
At main.c:356:
- SSL error:0200101C:system library:fopen:No space left on device: ../crypto/bio/bss_file.c:72
- SSL error:2006D002:BIO routines:BIO_new_file:system lib: ../crypto/bio/bss_file.c:81
sign-file: /tmp/tmp.by1RENAIJx/lib/modules/4.19.0+/kernel/crypto/morus640.ko.~signed~: No space left on device
scripts/Makefile.modinst:36: recipe for target 'crypto/morus640.ko' failed

/dev/loop4       48M   47M     0 100% /tmp/tmp.by1RENAIJx

YOCTO_IMAGE = core-image-minimal-qemu$(ARCH).ext4

$ make boot
qemu/create_net.sh tap0

dnsmasq: TFTP directory /home/v/school/so2/linux/tools/labs/tftp inaccessible: Permission denied
qemu/create_net.sh tap1

dnsmasq: TFTP directory /home/v/school/so2/linux/tools/labs/tftp inaccessible: Permission denied
/home/v/school/so2/linux/tools/labs/templates/assignments/6-e100/nttcp -v -i &
nttcp-l: nttcp, version 1.47
nttcp-l: running in inetd mode on port 5037 - ignoring options beside -v and -p
bind: Address already in use
nttcp-l: service-socket: bind:: Address already in use, errno=98
ARCH=x86 qemu/qemu.sh -kernel /home/v/school/so2/linux/arch/x86/boot/bzImage -device virtio-serial -chardev pty,id=virtiocon0 -device virtconsole,chardev=virtiocon0 -serial pipe:pipe1 -serial pipe:pipe2 -netdev tap,id=tap0,ifname=tap0,script=no,downscript=no -net nic,netdev=tap0,model=virtio -netdev tap,id=tap1,ifname=tap1,script=no,downscript=no -net nic,netdev=tap1,model=i82559er -drive file=core-image-sato-qemux86.ext4,if=virtio,format=raw -drive file=disk1.img,if=virtio,format=raw -drive file=disk2.img,if=virtio,format=raw --append "root=/dev/vda loglevel=15 console=hvc0" --display none -s -m 256
char device redirected to /dev/pts/0 (label virtiocon0)

root@qemux86:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 52:54:00:12:34:56  
          inet addr:169.254.170.68  Bcast:169.254.255.255  Mask:255.255.0.0
          inet6 addr: fe80::5054:ff:fe12:3456%134535719/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:55 errors:0 dropped:0 overruns:0 frame:0
          TX packets:89 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:7215 (7.0 KiB)  TX bytes:29578 (28.8 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1%134535719/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:380 (380.0 B)  TX bytes:380 (380.0 B)

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:cb:83:ab:88  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s20f0u1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.10  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::16a6:9ec0:ab75:7d3a  prefixlen 64  scopeid 0x20<link>
        ether 00:0e:c6:ae:b3:ea  txqueuelen 1000  (Ethernet)
        RX packets 1462327  bytes 1088076753 (1.0 GiB)
        RX errors 0  dropped 30  overruns 0  frame 0
        TX packets 1074357  bytes 610418490 (582.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 7112  bytes 531925 (519.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7112  bytes 531925 (519.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

tap0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.213.0.1  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 fe80::748a:4aff:fe32:6639  prefixlen 64  scopeid 0x20<link>
        ether 76:8a:4a:32:66:39  txqueuelen 1000  (Ethernet)
        RX packets 16300  bytes 2065161 (1.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 17409  bytes 37152107 (35.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

tap1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.30.0.1  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 fe80::3c79:7cff:fe54:c83a  prefixlen 64  scopeid 0x20<link>
        ether 3e:79:7c:54:c8:3a  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1879  bytes 280948 (274.3 KiB)
        TX errors 0  dropped 36 overruns 0  carrier 0  collisions 0

wlo1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.11  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::a841:7ca2:68eb:2008  prefixlen 64  scopeid 0x20<link>
        ether b4:69:21:e8:26:32  txqueuelen 1000  (Ethernet)
        RX packets 2769  bytes 225431 (220.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1859  bytes 310461 (303.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

$ make boot
make -C /home/robert/code/linux-kernel-labs
make[1]: Entering directory '/home/robert/code/linux-kernel-labs'
Makefile:595: include/config/auto.conf: No such file or directory
  LEX     scripts/kconfig/zconf.lex.c
flex: -Cf/-CF and %option yylineno are incompatible
scripts/Makefile.lib:188: recipe for target 'scripts/kconfig/zconf.lex.c' failed
make[3]: *** [scripts/kconfig/zconf.lex.c] Error 1
Makefile:539: recipe for target 'syncconfig' failed
make[2]: *** [syncconfig] Error 2
Makefile:635: recipe for target 'include/config/auto.conf' failed
make[1]: *** [include/config/auto.conf] Error 2
make[1]: Leaving directory '/home/robert/code/linux-kernel-labs'
qemu/Makefile:42: recipe for target '/home/robert/code/linux-kernel-labs/arch/x86/boot/bzImage' failed
make: *** [/home/robert/code/linux-kernel-labs/arch/x86/boot/bzImage] Error 2

➜ make docs                                                                                                                                                                                          
make -C /home/luis/github/TMP/kernel/linux DOCBOOKS= SPHINXDIRS="teaching" htmldocs                                                                                                                  
make[1]: Entering directory '/home/luis/github/TMP/kernel/linux'                                                                                                                                     
  HOSTCC  scripts/basic/fixdep
  SPHINX  htmldocs --> file:///home/luis/github/TMP/kernel/linux/Documentation/output/teaching
  PARSE   include/uapi/linux/dvb/audio.h
  PARSE   include/uapi/linux/dvb/ca.h
  PARSE   include/uapi/linux/dvb/dmx.h
  PARSE   include/uapi/linux/dvb/frontend.h
  PARSE   include/uapi/linux/dvb/net.h
  PARSE   include/uapi/linux/dvb/video.h
  PARSE   include/uapi/linux/videodev2.h
  PARSE   include/uapi/linux/media.h
  PARSE   include/uapi/linux/cec.h
  PARSE   include/uapi/linux/lirc.h
Running Sphinx v1.7.9
Warning: The Sphinx 'sphinx_rtd_theme' HTML theme was not found. Make sure you have the theme installed to produce pretty HTML output. Falling back to the default theme.
load additional sphinx-config: /home/luis/github/TMP/kernel/linux/Documentation/teaching/conf.py

Exception occurred:
  File "/home/luis/anaconda3/lib/python3.5/site-packages/sphinx/registry.py", line 315, in load_extension
    mod = __import__(extname, None, None, ['setup'])
  File "/home/luis/github/TMP/kernel/linux/Documentation/sphinx/ditaa.py", line 79
    print self.arguments
             ^
SyntaxError: Missing parentheses in call to 'print'
The full traceback has been saved in /tmp/sphinx-err-ck7oub5u.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
Documentation/Makefile:68: recipe for target 'htmldocs' failed

Sphinx error:
Builder name slides not registered or available through entry point
Documentation/Makefile:71: recipe for target 'slides' failed
make[2]: *** [slides] Error 1
Makefile:1470: recipe for target 'slides' failed
make[1]: *** [slides] Error 2
make[1]: Leaving directory '/home/sergiu/build/SO2/linux-testing.fork'
Makefile:34: recipe for target 'docs' failed
make: *** [docs] Error 2

kernel/minfs.c:332

	/* TODO 7/2: Mark the inode as used in the bitmap and mark
	 * the superblock buffer head as dirty.
	 */
	__test_and_set_bit(idx, &sbi->imap);
	mark_buffer_dirty(sbi->sbh);

       
       /********* fix like this ? ********/
       __test_and_set_bit(idx, &sbi->imap);

       /* update sbi->sbh */
       struct minfs_super_block *ms;
       ms = (struct minfs_super_block *)(sbi->sbh->b_data);
       ms->imap = sbi->imap;

       mark_buffer_dirty(sbi->sbh);