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| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-03-13 04:19:47 (GMT) |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-03-13 04:19:47 (GMT) |
| commit | 101aaca1f32d9923331ddc63a7a72b3a7f934c02 (patch) | |
| tree | 1aa97e2d20d0e38ef62a49f794887873323ed49d | |
| parent | a70f730282019f487aa33a84e5ac9a5e89c5abd0 (diff) | |
| download | linux-101aaca1f32d9923331ddc63a7a72b3a7f934c02.tar.xz | |
cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: x86
Impact: cleanup
(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 const 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>
| -rw-r--r-- | arch/x86/kernel/apic/es7000_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/numaq_32.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c index 19588f2..1322f54 100644 --- a/arch/x86/kernel/apic/es7000_32.c +++ b/arch/x86/kernel/apic/es7000_32.c @@ -457,7 +457,7 @@ static int es7000_apic_id_registered(void) static const cpumask_t *target_cpus_cluster(void) { - return &CPU_MASK_ALL; + return cpu_all_mask; } static const cpumask_t *es7000_target_cpus(void) diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c index ba2fc64..e4ce98a 100644 --- a/arch/x86/kernel/apic/numaq_32.c +++ b/arch/x86/kernel/apic/numaq_32.c @@ -336,7 +336,7 @@ static inline void numaq_smp_callin_clear_local_apic(void) static inline const cpumask_t *numaq_target_cpus(void) { - return &CPU_MASK_ALL; + return cpu_all_mask; } static inline unsigned long |