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x86/entry: Make syscall functions static

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They are only used in the respective source files. No point in exposing
them.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Mukesh Kumar Chaurasiya (IBM) <mkchauras@gmail.com>
Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Mukesh Kumar Chaurasiya (IBM) <mkchauras@gmail.com>
Link: https://patch.msgid.link/20260707190254.438361565@kernel.org
This commit is contained in:
Thomas Gleixner
2026-07-12 12:38:02 +02:00
parent 622f04e974
commit 2b341c74db
3 changed files with 7 additions and 13 deletions
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arch/x86/entry/syscall_32.c
+1 -1
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@@ -41,7 +41,7 @@ const sys_call_ptr_t sys_call_table[] = {
#endif #endif
#define __SYSCALL(nr, sym) case nr: return __ia32_##sym(regs); #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) { switch (nr) {
#include <asm/syscalls_32.h> #include <asm/syscalls_32.h>
arch/x86/entry/syscall_64.c
+6 -4
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@@ -32,7 +32,7 @@ const sys_call_ptr_t sys_call_table[] = {
#undef __SYSCALL #undef __SYSCALL
#define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs); #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) { switch (nr) {
#include <asm/syscalls_64.h> #include <asm/syscalls_64.h>
@@ -40,15 +40,17 @@ long x64_sys_call(const struct pt_regs *regs, unsigned int nr)
} }
} }
#ifdef CONFIG_X86_X32_ABI static noinline long x32_sys_call(const struct pt_regs *regs, unsigned int nr)
long x32_sys_call(const struct pt_regs *regs, unsigned int nr)
{ {
#ifdef CONFIG_X86_X32_ABI
switch (nr) { switch (nr) {
#include <asm/syscalls_x32.h> #include <asm/syscalls_x32.h>
default: return __x64_sys_ni_syscall(regs); default: return __x64_sys_ni_syscall(regs);
} }
} #else
return -ENOSYS;
#endif #endif
}
static __always_inline bool do_syscall_x64(struct pt_regs *regs, int nr) static __always_inline bool do_syscall_x64(struct pt_regs *regs, int nr)
{ {
arch/x86/include/asm/syscall.h
-8
View File
@@ -20,14 +20,6 @@
typedef long (*sys_call_ptr_t)(const struct pt_regs *); typedef long (*sys_call_ptr_t)(const struct pt_regs *);
extern const sys_call_ptr_t sys_call_table[]; 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);
/* /*
* Only the low 32 bits of orig_ax are meaningful, so we return int. * 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 * This importantly ignores the high bits on 64-bit, so comparisons