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| author | Christopher M. Riedl <cmr@codefail.de> | 2021-02-26 19:12:53 -0600 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 12:49:46 +1100 |
| commit | 1a130b67c682be9842f188f593c2080786de4204 (patch) | |
| tree | dde37c2a8605a8c74c5bfa2fb822439e8ee29ef3 | |
| parent | c6c9645e37483444ec5182373455b2f22e4b1535 (diff) | |
| download | lwn-1a130b67c682be9842f188f593c2080786de4204.tar.gz lwn-1a130b67c682be9842f188f593c2080786de4204.zip | |
powerpc: Reference parameter in MSR_TM_ACTIVE() macro
Unlike the other MSR_TM_* macros, MSR_TM_ACTIVE does not reference or
use its parameter unless CONFIG_PPC_TRANSACTIONAL_MEM is defined. This
causes an 'unused variable' compile warning unless the variable is also
guarded with CONFIG_PPC_TRANSACTIONAL_MEM.
Reference but do nothing with the argument in the macro to avoid a
potential compile warning.
Signed-off-by: Christopher M. Riedl <cmr@codefail.de>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210227011259.11992-5-cmr@codefail.de
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index da103e92c112..1be20bc8dce2 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -124,7 +124,7 @@ #ifdef CONFIG_PPC_TRANSACTIONAL_MEM #define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */ #else -#define MSR_TM_ACTIVE(x) 0 +#define MSR_TM_ACTIVE(x) ((void)(x), 0) #endif #if defined(CONFIG_PPC_BOOK3S_64) |