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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-15 20:07:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-15 20:07:27 -0700 |
| commit | 2439a5eaa753d22759fb4248e0f5e459503fffad (patch) | |
| tree | 2622a88a4e99fcd9859ee0e0bd7af8ecf054df7a /arch/x86/entry/syscall_64.c | |
| parent | f998678baf3c143fec4c66e7f3a84bae3b25ff12 (diff) | |
| parent | 42c141fbb651b64db492aab35bc1d96eb4c20261 (diff) | |
Merge tag 'x86_bugs_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu mitigation updates from Borislav Petkov:
- Add a spectre_bhi=vmexit mitigation option aimed at cloud
environments
- Remove duplicated Spectre cmdline option documentation
- Add separate macro definitions for syscall handlers which do not
return in order to address objtool warnings
* tag 'x86_bugs_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Add 'spectre_bhi=vmexit' cmdline option
x86/bugs: Remove duplicate Spectre cmdline option descriptions
x86/syscall: Mark exit[_group] syscall handlers __noreturn
Diffstat (limited to 'arch/x86/entry/syscall_64.c')
| -rw-r--r-- | arch/x86/entry/syscall_64.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c index 33b3f09e6f15..ba8354424860 100644 --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -8,8 +8,12 @@ #include <asm/syscall.h> #define __SYSCALL(nr, sym) extern long __x64_##sym(const struct pt_regs *); +#define __SYSCALL_NORETURN(nr, sym) extern long __noreturn __x64_##sym(const struct pt_regs *); #include <asm/syscalls_64.h> -#undef __SYSCALL +#undef __SYSCALL + +#undef __SYSCALL_NORETURN +#define __SYSCALL_NORETURN __SYSCALL /* * The sys_call_table[] is no longer used for system calls, but @@ -20,10 +24,9 @@ const sys_call_ptr_t sys_call_table[] = { #include <asm/syscalls_64.h> }; -#undef __SYSCALL +#undef __SYSCALL #define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs); - long x64_sys_call(const struct pt_regs *regs, unsigned int nr) { switch (nr) { |