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authorH. Peter Anvin (Intel) <hpa@zytor.com>2021-05-10 11:53:12 -0700
committerIngo Molnar <mingo@kernel.org>2021-05-12 10:49:15 +0200
commitdce0aa3b2ef28900cc4c779c59a870f1b4bdadee (patch)
tree980389d5f1ff53772d39048f714e67f71c6994f9
parent3e5e7f7736b05d5fdf2cc4e0ba4f2d8bc42c630d (diff)
downloadlinux-dce0aa3b2ef28900cc4c779c59a870f1b4bdadee.tar.bz2
x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[]
Even if these APIs are disabled, and the arrays therefore do not exist, having the prototypes allows us to use IS_ENABLED() rather than using #ifdefs. If something ends up trying to actually *use* these arrays a linker error will ensue. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210510185316.3307264-4-hpa@zytor.com
-rw-r--r--arch/x86/include/asm/syscall.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index 4e20054d7533..f6593cafdbd9 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -21,13 +21,12 @@ extern const sys_call_ptr_t sys_call_table[];
#if defined(CONFIG_X86_32)
#define ia32_sys_call_table sys_call_table
-#endif
-
-#if defined(CONFIG_IA32_EMULATION)
+#else
+/*
+ * These may not exist, but still put the prototypes in so we
+ * can use IS_ENABLED().
+ */
extern const sys_call_ptr_t ia32_sys_call_table[];
-#endif
-
-#ifdef CONFIG_X86_X32_ABI
extern const sys_call_ptr_t x32_sys_call_table[];
#endif