[patch V2.1 02/20] x86/extable: Get rid of redundant macros

From: Thomas Gleixner
Date: Tue Sep 07 2021 - 16:24:50 EST


No point in defining the identical macros twice depending on C or assembly
mode. They are still identical.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
V2: New patch
---
arch/x86/include/asm/asm.h | 37 +++++++++++++------------------------
1 file changed, 13 insertions(+), 24 deletions(-)

--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -132,18 +132,6 @@
.long (handler) - . ; \
.popsection

-# define _ASM_EXTABLE(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_default)
-
-# define _ASM_EXTABLE_UA(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_uaccess)
-
-# define _ASM_EXTABLE_CPY(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_copy)
-
-# define _ASM_EXTABLE_FAULT(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_fault)
-
# ifdef CONFIG_KPROBES
# define _ASM_NOKPROBE(entry) \
.pushsection "_kprobe_blacklist","aw" ; \
@@ -164,18 +152,6 @@
" .long (" _EXPAND_EXTABLE_HANDLE(handler) ") - .\n" \
" .popsection\n"

-# define _ASM_EXTABLE(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_default)
-
-# define _ASM_EXTABLE_UA(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_uaccess)
-
-# define _ASM_EXTABLE_CPY(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_copy)
-
-# define _ASM_EXTABLE_FAULT(from, to) \
- _ASM_EXTABLE_HANDLE(from, to, ex_handler_fault)
-
/* For C file, we already have NOKPROBE_SYMBOL macro */

/*
@@ -188,6 +164,19 @@ register unsigned long current_stack_poi
#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
#endif /* __ASSEMBLY__ */

+#define _ASM_EXTABLE(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_default)
+
+#define _ASM_EXTABLE_UA(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_uaccess)
+
+#define _ASM_EXTABLE_CPY(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_copy)
+
+#define _ASM_EXTABLE_FAULT(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_fault)
+
+
#endif /* __KERNEL__ */

#endif /* _ASM_X86_ASM_H */