diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2018-04-27 07:36:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-29 07:50:02 +0200 |
| commit | 243f3abcfd64a5cfa774eb32aa0a349693bf6eaa (patch) | |
| tree | 70852564a87c3ee37ab844971362046f931bcd67 /arch/s390/include | |
| parent | 4eaf8dace704fb5392b330a01dbf579d3190b0b3 (diff) | |
s390: enable CPU alternatives unconditionally
[ Upstream commit 049a2c2d486e8cc82c5cd79fa479c5b105b109e9 ]
Remove the CPU_ALTERNATIVES config option and enable the code
unconditionally. The config option was only added to avoid a conflict
with the named saved segment support. Since that code is gone there is
no reason to keep the CPU_ALTERNATIVES config option.
Just enable it unconditionally to also reduce the number of config
options and make it less likely that something breaks.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/alternative.h | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h index 6c268f6a51d3..a72002056b54 100644 --- a/arch/s390/include/asm/alternative.h +++ b/arch/s390/include/asm/alternative.h @@ -15,14 +15,9 @@ struct alt_instr { u8 replacementlen; /* length of new instruction */ } __packed; -#ifdef CONFIG_ALTERNATIVES -extern void apply_alternative_instructions(void); -extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); -#else -static inline void apply_alternative_instructions(void) {}; -static inline void apply_alternatives(struct alt_instr *start, - struct alt_instr *end) {}; -#endif +void apply_alternative_instructions(void); +void apply_alternatives(struct alt_instr *start, struct alt_instr *end); + /* * |661: |662: |6620 |663: * +-----------+---------------------+ @@ -109,7 +104,6 @@ static inline void apply_alternatives(struct alt_instr *start, b_altinstr(num)":\n\t" altinstr "\n" e_altinstr(num) ":\n" \ INSTR_LEN_SANITY_CHECK(altinstr_len(num)) -#ifdef CONFIG_ALTERNATIVES /* alternative assembly primitive: */ #define ALTERNATIVE(oldinstr, altinstr, facility) \ ".pushsection .altinstr_replacement, \"ax\"\n" \ @@ -130,14 +124,6 @@ static inline void apply_alternatives(struct alt_instr *start, ALTINSTR_ENTRY(facility1, 1) \ ALTINSTR_ENTRY(facility2, 2) \ ".popsection\n" -#else -/* Alternative instructions are disabled, let's put just oldinstr in */ -#define ALTERNATIVE(oldinstr, altinstr, facility) \ - oldinstr "\n" - -#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \ - oldinstr "\n" -#endif /* * Alternative instructions for different CPU types or capabilities. |