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asm-generic: percpu: avoid Wshadow warning

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Nesting macros that use the same local variable names causes
warnings when building with "make W=2":

include/asm-generic/percpu.h:117:14: warning: declaration of '__ret' shadows a previous local [-Wshadow]
include/asm-generic/percpu.h:126:14: warning: declaration of '__ret' shadows a previous local [-Wshadow]

These are fairly harmless, but since the warning comes from
a global header, the warning happens every time the headers
are included, which is fairly annoying.

Rename the variables to avoid shadowing and shut up the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
This commit is contained in:
Arnd Bergmann 2020-10-26 16:53:48 +01:00 committed by Dennis Zhou
parent 3650b228f8
commit 29813a2297
1 changed files with 9 additions and 9 deletions
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18
include/asm-generic/percpu.h
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@ -114,21 +114,21 @@ do { \
#define __this_cpu_generic_read_nopreempt(pcp) \
({ \
typeof(pcp) __ret; \
typeof(pcp) ___ret; \
preempt_disable_notrace(); \
__ret = READ_ONCE(*raw_cpu_ptr(&(pcp))); \
___ret = READ_ONCE(*raw_cpu_ptr(&(pcp))); \
preempt_enable_notrace(); \
__ret; \
___ret; \
})
#define __this_cpu_generic_read_noirq(pcp) \
({ \
typeof(pcp) __ret; \
unsigned long __flags; \
raw_local_irq_save(__flags); \
__ret = raw_cpu_generic_read(pcp); \
raw_local_irq_restore(__flags); \
__ret; \
typeof(pcp) ___ret; \
unsigned long ___flags; \
raw_local_irq_save(___flags); \
___ret = raw_cpu_generic_read(pcp); \
raw_local_irq_restore(___flags); \
___ret; \
})
#define this_cpu_generic_read(pcp) \