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include/linux/smp.h:on_each_cpu(): switch back to a macro

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Commit f21afc25f9 ("smp.h: Use local_irq_{save,restore}() in !SMP
version of on_each_cpu()") converted on_each_cpu() to a C function.

This required inclusion of irqflags.h, which broke ia64 and mn10300 (at
least) due to header ordering hell.

Switch on_each_cpu() back to a macro to fix this.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Daney <david.daney@cavium.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: <stable@vger.kernel.org>	[3.10.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2013-07-03 15:00:41 -07:00 committed by Linus Torvalds
parent 1873e50028
commit c846ef7deb
1 changed files with 8 additions and 12 deletions
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20
include/linux/smp.h
View file

@ -11,7 +11,6 @@
#include <linux/list.h>
#include <linux/cpumask.h>
#include <linux/init.h>
#include <linux/irqflags.h>
extern void cpu_idle(void);
@ -140,17 +139,14 @@ static inline int up_smp_call_function(smp_call_func_t func, void *info)
}
#define smp_call_function(func, info, wait) \
(up_smp_call_function(func, info))
static inline int on_each_cpu(smp_call_func_t func, void *info, int wait)
{
unsigned long flags;
local_irq_save(flags);
func(info);
local_irq_restore(flags);
return 0;
}
#define on_each_cpu(func, info, wait) \
({ \
unsigned long __flags; \
local_irq_save(__flags); \
func(info); \
local_irq_restore(__flags); \
0; \
})
/*
* Note we still need to test the mask even for UP
* because we actually can get an empty mask from