Messages in this thread Patch in this message | | | From | Rusty Russell <> | Date | Fri, 12 Jun 2009 22:31:04 +0930 | Subject | [PATCH 7/17] cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: mips |
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(Thanks to Al Viro for reminding me of this, via Ingo)
CPU_MASK_ALL is the (deprecated) "all bits set" cpumask, defined as so:
#define CPU_MASK_ALL (cpumask_t) { { ... } }
Taking the address of such a temporary is questionable at best, unfortunately 321a8e9d (cpumask: add CPU_MASK_ALL_PTR macro) added CPU_MASK_ALL_PTR:
#define CPU_MASK_ALL_PTR (&CPU_MASK_ALL)
Which formalizes this practice. One day gcc could bite us over this usage (though we seem to have gotten away with it so far).
So replace everywhere which used &CPU_MASK_ALL or CPU_MASK_ALL_PTR with the modern "cpu_all_mask" (a real struct cpumask *), and remove CPU_MASK_ALL_PTR altogether.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu> Reported-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mike Travis <travis@sgi.com> --- arch/mips/alchemy/common/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c --- a/arch/mips/alchemy/common/time.c +++ b/arch/mips/alchemy/common/time.c @@ -89,7 +89,7 @@ static struct clock_event_device au1x_rt .irq = AU1000_RTC_MATCH2_INT, .set_next_event = au1x_rtcmatch2_set_next_event, .set_mode = au1x_rtcmatch2_set_mode, - .cpumask = CPU_MASK_ALL_PTR, + .cpumask = cpu_all_mask, }; static struct irqaction au1x_rtcmatch2_irqaction = {
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