OpenCloudOS-Kernel/arch/x86
Hou Tao b6ec79518e bpf, x86: Remove unnecessary handling of BPF_SUB atomic op
According to the LLVM commit (https://reviews.llvm.org/D72184),
sync_fetch_and_sub() is implemented as a negation followed by
sync_fetch_and_add(), so there will be no BPF_SUB op, thus just
remove it. BPF_SUB is also rejected by the verifier anyway.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Brendan Jackman <jackmanb@google.com>
Link: https://lore.kernel.org/bpf/20220127083240.1425481-1-houtao1@huawei.com
2022-01-27 22:47:05 +01:00
..
boot Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
configs x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs 2022-01-08 22:55:29 +01:00
crypto - Get rid of all the .fixup sections because this generates 2022-01-12 16:31:19 -08:00
entry Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
events Peter Zijlstra says: 2022-01-12 16:26:58 -08:00
hyperv hyperv-next for 5.17 2022-01-16 15:53:00 +02:00
ia32 audit/stable-5.16 PR 20211101 2021-11-01 21:17:39 -07:00
include RISCV: 2022-01-16 16:15:14 +02:00
kernel Merge branch 'akpm' (patches from Andrew) 2022-01-20 10:41:01 +02:00
kvm RISCV: 2022-01-16 16:15:14 +02:00
lib - Get rid of all the .fixup sections because this generates 2022-01-12 16:31:19 -08:00
math-emu x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
mm Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
net bpf, x86: Remove unnecessary handling of BPF_SUB atomic op 2022-01-27 22:47:05 +01:00
pci pci-v5.17-changes 2022-01-16 08:08:11 +02:00
platform - Get rid of all the .fixup sections because this generates 2022-01-12 16:31:19 -08:00
power x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
purgatory x86/purgatory: Remove -nostdlib compiler flag 2021-12-30 14:13:06 +01:00
ras
realmode - Flush *all* mappings from the TLB after switching to the trampoline 2022-01-10 09:51:38 -08:00
tools x86/build: Use the proper name CONFIG_FW_LOADER 2021-12-29 22:20:38 +01:00
um - Get rid of all the .fixup sections because this generates 2022-01-12 16:31:19 -08:00
video
xen xen: branch for v5.17-rc1 2022-01-12 16:42:00 -08:00
.gitignore
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig Merge branch 'akpm' (patches from Andrew) 2022-01-20 10:41:01 +02:00
Kconfig.assembler
Kconfig.cpu x86/mmx_32: Remove X86_USE_3DNOW 2021-12-11 09:09:45 +01:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile x86: Add straight-line-speculation mitigation 2021-12-09 13:32:25 +01:00
Makefile.um um: allow not setting extra rpaths in the linux binary 2021-06-17 21:54:15 +02:00
Makefile_32.cpu x86/build: Do not add -falign flags unconditionally for clang 2021-09-19 10:35:53 +09:00