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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2020-06-29 20:48:09 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2020-07-20 10:55:45 +0200 |
| commit | 88aa8939c96781089e5ace3492d818074c5c6fe9 (patch) | |
| tree | 14871ef632e444b996a9087906f844f74b80e016 /arch/s390 | |
| parent | 771cf196cc92a6078656548bbc073aa932c053ab (diff) | |
| download | linux-88aa8939c96781089e5ace3492d818074c5c6fe9.tar.bz2 | |
s390/kernel: unify EX_TABLE* implementations
Replace three implementations with one using using __stringify_in_c
macro conveniently "borrowed" from powerpc and microblaze.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/asm-const.h | 12 | ||||
| -rw-r--r-- | arch/s390/include/asm/linkage.h | 34 |
2 files changed, 23 insertions, 23 deletions
diff --git a/arch/s390/include/asm/asm-const.h b/arch/s390/include/asm/asm-const.h new file mode 100644 index 000000000000..11f615eb0066 --- /dev/null +++ b/arch/s390/include/asm/asm-const.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_ASM_CONST_H +#define _ASM_S390_ASM_CONST_H + +#ifdef __ASSEMBLY__ +# define stringify_in_c(...) __VA_ARGS__ +#else +/* This version of stringify will deal with commas... */ +# define __stringify_in_c(...) #__VA_ARGS__ +# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " +#endif +#endif /* _ASM_S390_ASM_CONST_H */ diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h index 7f22262b0e46..1b52c07b5642 100644 --- a/arch/s390/include/asm/linkage.h +++ b/arch/s390/include/asm/linkage.h @@ -2,38 +2,26 @@ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H +#include <asm/asm-const.h> #include <linux/stringify.h> #define __ALIGN .align 4, 0x07 #define __ALIGN_STR __stringify(__ALIGN) -#ifndef __ASSEMBLY__ - /* * Helper macro for exception table entries */ -#define EX_TABLE(_fault, _target) \ - ".section __ex_table,\"a\"\n" \ - ".align 4\n" \ - ".long (" #_fault ") - .\n" \ - ".long (" #_target ") - .\n" \ - ".previous\n" - -#else /* __ASSEMBLY__ */ -#define EX_TABLE(_fault, _target) \ - .section __ex_table,"a" ; \ - .align 4 ; \ - .long (_fault) - . ; \ - .long (_target) - . ; \ - .previous +#define __EX_TABLE(_section, _fault, _target) \ + stringify_in_c(.section _section,"a";) \ + stringify_in_c(.align 4;) \ + stringify_in_c(.long (_fault) - .;) \ + stringify_in_c(.long (_target) - .;) \ + stringify_in_c(.previous) -#define EX_TABLE_DMA(_fault, _target) \ - .section .dma.ex_table, "a" ; \ - .align 4 ; \ - .long (_fault) - . ; \ - .long (_target) - . ; \ - .previous +#define EX_TABLE(_fault, _target) \ + __EX_TABLE(__ex_table, _fault, _target) +#define EX_TABLE_DMA(_fault, _target) \ + __EX_TABLE(.dma.ex_table, _fault, _target) -#endif /* __ASSEMBLY__ */ #endif |