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Rong Tao 8ec977a9d3 tools/virtio: Fix arm64 ringtest compilation error 
[ Upstream commit 57380fd124 ]

Add cpu_relax() for arm64 instead of directly assert(), and add assert.h
header file. Also, add smp_wmb and smp_mb for arm64.

Compilation error as follows, avoid __always_inline undefined.

    $ make
    cc -Wall -pthread -O2 -ggdb -flto -fwhole-program -c -o ring.o ring.c
    In file included from ring.c:10:
    main.h: In function ‘busy_wait’:
    main.h:99:21: warning: implicit declaration of function ‘assert’
    [-Wimplicit-function-declaration]
    99 | #define cpu_relax() assert(0)
        |                     ^~~~~~
    main.h:107:17: note: in expansion of macro ‘cpu_relax’
    107 |                 cpu_relax();
        |                 ^~~~~~~~~
    main.h:12:1: note: ‘assert’ is defined in header ‘<assert.h>’; did you
    forget to ‘#include <assert.h>’?
    11 | #include <stdbool.h>
    +++ |+#include <assert.h>
    12 |
    main.h: At top level:
    main.h:143:23: error: expected ‘;’ before ‘void’
    143 | static __always_inline
        |                       ^
        |                       ;
    144 | void __read_once_size(const volatile void *p, void *res, int
    size)
        | ~~~~
    main.h:158:23: error: expected ‘;’ before ‘void’
    158 | static __always_inline void __write_once_size(volatile void *p,
    void *res, int size)
        |                       ^~~~~
        |                       ;
    make: *** [<builtin>: ring.o] Error 1

Signed-off-by: Rong Tao <rongtao@cestc.cn>
Message-Id: <tencent_F53E159DD7925174445D830DA19FACF44B07@qq.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-06-28 11:14:23 +02:00
Documentation mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM 2023-06-14 11:16:59 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch ARM: dts: Fix erroneous ADS touchscreen polarities 2023-06-28 11:14:22 +02:00
block block: make sure local irq is disabled when calling __blkcg_rstat_flush 2023-06-28 11:14:10 +02:00
certs Kbuild updates for v6.3 2023-02-26 11:53:25 -08:00
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-09 10:48:25 +02:00
drivers drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl 2023-06-28 11:14:23 +02:00
fs gfs2: Don't get stuck writing page onto itself under direct I/O 2023-06-28 11:14:21 +02:00
include scsi: target: iscsi: Remove unused transport_timer 2023-06-28 11:14:18 +02:00
init gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-23 09:56:20 -07:00
io_uring io_uring/net: use the correct msghdr union member in io_sendmsg_copy_hdr 2023-06-28 11:14:16 +02:00
ipc Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
kernel bpf: Force kprobe multi expected_attach_type for kprobe_multi link 2023-06-28 11:14:16 +02:00
lib lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release() 2023-06-14 11:16:51 +02:00
mm mm/mprotect: fix do_mprotect_pkey() limit check 2023-06-28 11:14:05 +02:00
net net: sched: wrap tc_skip_wrapper with CONFIG_RETPOLINE 2023-06-28 11:14:22 +02:00
rust rust: allow to use INIT_STACK_ALL_ZERO 2023-04-19 19:34:43 +02:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-24 17:30:06 +01:00
scripts scripts: fix the gfp flags header path in gfp-translate 2023-06-28 11:14:04 +02:00
security selinux: don't use make's grouped targets feature yet 2023-06-09 10:48:20 +02:00
sound ALSA: hda/realtek: Add "Intel Reference board" and "NUC 13" SSID in the ALC256 2023-06-28 11:14:22 +02:00
tools tools/virtio: Fix arm64 ringtest compilation error 2023-06-28 11:14:23 +02:00
usr initramfs: Check negative timestamp to prevent broken cpio archive 2023-04-16 17:37:01 +09:00
virt KVM: Avoid illegal stage2 mapping on invalid memory slot 2023-06-28 11:14:05 +02:00
.clang-format cpumask: re-introduce constant-sized cpumask optimizations 2023-03-05 14:30:34 -08:00
.cocciconfig
…
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for *.dtso files 2023-02-26 15:28:23 +09:00
.gitignore kbuild: rpm-pkg: move source components to rpmbuild/SOURCES 2023-03-16 22:45:56 +09:00
.mailmap Networking fixes for 6.3-rc8, including fixes from netfilter and bpf 2023-04-20 11:03:51 -07:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Resume MPTCP co-maintainer role 2023-04-19 18:10:24 -07:00
Makefile Linux 6.3.9 2023-06-21 16:02:19 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.