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| author | Borislav Petkov <bp@suse.de> | 2022-02-04 09:30:14 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-02-12 22:07:13 +0100 |
| commit | b008893b08dcc8c30d756db05c229a1491bcb992 (patch) | |
| tree | b1945b02ed8c6bbc31c1e0cc994b8ba4a5d5b478 /arch/x86/include/asm/ptrace.h | |
| parent | cpumask: Add a x86-specific cpumask_clear_cpu() helper (diff) | |
| download | linux-b008893b08dcc8c30d756db05c229a1491bcb992.tar.xz linux-b008893b08dcc8c30d756db05c229a1491bcb992.zip | |
x86/ptrace: Always inline v8086_mode() for instrumentation
Instrumentation glue like KASAN causes the following warning:
vmlinux.o: warning: objtool: mce_gather_info()+0x5f: call to v8086_mode.constprop.0() leaves .noinstr.text section
due to gcc creating a function call for that oneliner. Force-inline it
and even save some vmlinux bytes (.config is close to an allmodconfig):
text data bss dec hex filename
209431677 208257651 34411048 452100376 1af28118 vmlinux.before
209431519 208257615 34411048 452100182 1af28056 vmlinux.after
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20220204083015.17317-3-bp@alien8.de
Diffstat (limited to 'arch/x86/include/asm/ptrace.h')
| -rw-r--r-- | arch/x86/include/asm/ptrace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h index 703663175a5a..4357e0f2cd5f 100644 --- a/arch/x86/include/asm/ptrace.h +++ b/arch/x86/include/asm/ptrace.h @@ -137,7 +137,7 @@ static __always_inline int user_mode(struct pt_regs *regs) #endif } -static inline int v8086_mode(struct pt_regs *regs) +static __always_inline int v8086_mode(struct pt_regs *regs) { #ifdef CONFIG_X86_32 return (regs->flags & X86_VM_MASK); |