On 7/8/2026 3:06 AM, Thomas Gleixner wrote:
> They are only used in the respective source files. No point in exposing
> them.
>
> Signed-off-by: Thomas Gleixner <[email protected]>
> ---
> arch/x86/entry/syscall_32.c | 2 +-
> arch/x86/entry/syscall_64.c | 10 ++++++----
> arch/x86/include/asm/syscall.h | 8 --------
> 3 files changed, 7 insertions(+), 13 deletions(-)
>
> --- a/arch/x86/entry/syscall_32.c
> +++ b/arch/x86/entry/syscall_32.c
> @@ -41,7 +41,7 @@ const sys_call_ptr_t sys_call_table[] =
> #endif
>
> #define __SYSCALL(nr, sym) case nr: return __ia32_##sym(regs);
> -long ia32_sys_call(const struct pt_regs *regs, unsigned int nr)
> +static noinline long ia32_sys_call(const struct pt_regs *regs, unsigned int
> nr)
> {
> switch (nr) {
> #include <asm/syscalls_32.h>
> --- a/arch/x86/entry/syscall_64.c
> +++ b/arch/x86/entry/syscall_64.c
> @@ -32,7 +32,7 @@ const sys_call_ptr_t sys_call_table[] =
> #undef __SYSCALL
>
> #define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs);
> -long x64_sys_call(const struct pt_regs *regs, unsigned int nr)
> +static noinline long x64_sys_call(const struct pt_regs *regs, unsigned int
> nr)
> {
> switch (nr) {
> #include <asm/syscalls_64.h>
> @@ -40,15 +40,17 @@ long x64_sys_call(const struct pt_regs *
> }
> }
>
> -#ifdef CONFIG_X86_X32_ABI
> -long x32_sys_call(const struct pt_regs *regs, unsigned int nr)
> +static noinline long x32_sys_call(const struct pt_regs *regs, unsigned int
> nr)
> {
> +#ifdef CONFIG_X86_X32_ABI
> switch (nr) {
> #include <asm/syscalls_x32.h>
> default: return __x64_sys_ni_syscall(regs);
> }
> -}
> +#else
> + return -ENOSYS;
> #endif
> +}
>
> static __always_inline bool do_syscall_x64(struct pt_regs *regs, int nr)
> {
> --- a/arch/x86/include/asm/syscall.h
> +++ b/arch/x86/include/asm/syscall.h
> @@ -21,14 +21,6 @@ typedef long (*sys_call_ptr_t)(const str
> extern const sys_call_ptr_t sys_call_table[];
>
> /*
> - * These may not exist, but still put the prototypes in so we
> - * can use IS_ENABLED().
> - */
> -extern long ia32_sys_call(const struct pt_regs *, unsigned int nr);
> -extern long x32_sys_call(const struct pt_regs *, unsigned int nr);
> -extern long x64_sys_call(const struct pt_regs *, unsigned int nr);
> -
Reviewed-by: Jinjie Ruan <[email protected]>
> -/*
> * Only the low 32 bits of orig_ax are meaningful, so we return int.
> * This importantly ignores the high bits on 64-bit, so comparisons
> * sign-extend the low 32 bits.
>
