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[PATCH] alpha: fix "statement with no effect" warnings

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Apparently gcc 4.0 complains about "({ 0; });", which leads to -Werror
breakage in one of the alpha oprofile modules.

One might could argue that this is a gcc bug, in that statement-expressions
should be considered to be function-like rather than statement-like for the
purposes of this warning.  But it's just as easy to use an inline function
in the first place, side-stepping the issue.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Richard Henderson 2005-07-28 01:07:41 -07:00 committed by Linus Torvalds
parent 11be00cba6
commit 79a8810221
2 changed files with 23 additions and 6 deletions
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9
include/asm-alpha/smp.h
View File

@ -50,11 +50,16 @@ extern cpumask_t cpu_online_map;
extern int smp_num_cpus;
#define cpu_possible_map cpu_present_mask
int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu);
int smp_call_function_on_cpu(void (*) (void *), void *, int, int, cpumask_t);
#else /* CONFIG_SMP */
#define smp_call_function_on_cpu(func,info,retry,wait,cpu) ({ 0; })
static inline int
smp_call_function_on_cpu (void (*func) (void *), void *info, int retry,
int wait, cpumask_t cpu)
{
return 0;
}
#endif /* CONFIG_SMP */

20
include/linux/smp.h
View File

@ -94,11 +94,23 @@ void smp_prepare_boot_cpu(void);
*/
#define raw_smp_processor_id() 0
#define hard_smp_processor_id() 0
#define smp_call_function(func,info,retry,wait) ({ 0; })
#define on_each_cpu(func,info,retry,wait) ({ func(info); 0; })
static inline void smp_send_reschedule(int cpu) { }
#define num_booting_cpus() 1
#define smp_prepare_boot_cpu() do {} while (0)
static inline int smp_call_function(void (*func) (void *), void *info,
int retry, int wait)
{
return 0;
}
static inline int on_each_cpu(void (*func) (void *), void *info,
int retry, int wait)
{
func(info);
return 0;
}
static inline void smp_send_reschedule(int cpu) { }
static inline void smp_prepare_boot_cpu(void) { }
#endif /* !SMP */