diff options
| author | Mike Travis <travis@sgi.com> | 2008-07-08 14:35:21 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-13 19:11:58 +0200 |
| commit | 11369f356b66d363a615fde2c5526962f7683674 (patch) | |
| tree | 9723013073973c413e7cde295e99221ff40afca3 /arch/x86 | |
| parent | ce8b06b985ae48f9425de6e4641e77cb3613ef00 (diff) | |
| download | linux-11369f356b66d363a615fde2c5526962f7683674.tar.bz2 | |
x86: change _node_to_cpumask_ptr to return const ptr
* Strengthen the return type for the _node_to_cpumask_ptr to be
a const pointer. This adds compiler checking to insure that
node_to_cpumask_map[] is not changed inadvertently.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Acked-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/setup_percpu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 5fc310f746fc..cac68430d31f 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -343,23 +343,23 @@ static const cpumask_t cpu_mask_none; /* * Returns a pointer to the bitmask of CPUs on Node 'node'. */ -cpumask_t *_node_to_cpumask_ptr(int node) +const cpumask_t *_node_to_cpumask_ptr(int node) { if (node_to_cpumask_map == NULL) { printk(KERN_WARNING "_node_to_cpumask_ptr(%d): no node_to_cpumask_map!\n", node); dump_stack(); - return &cpu_online_map; + return (const cpumask_t *)&cpu_online_map; } if (node >= nr_node_ids) { printk(KERN_WARNING "_node_to_cpumask_ptr(%d): node > nr_node_ids(%d)\n", node, nr_node_ids); dump_stack(); - return (cpumask_t *)&cpu_mask_none; + return &cpu_mask_none; } - return (cpumask_t *)&node_to_cpumask_map[node]; + return &node_to_cpumask_map[node]; } EXPORT_SYMBOL(_node_to_cpumask_ptr); |