Messages in this thread Patch in this message | | | Date | Fri, 09 Nov 2012 10:20:59 +0800 | From | Shan Wei <> | Subject | [PATCH v3 3/9] net: xfrm: use __this_cpu_read per-cpu helper |
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From: Shan Wei <davidshan@tencent.com>
Signed-off-by: Shan Wei <davidshan@tencent.com> --- v3 fix compile warning: net/xfrm/xfrm_ipcomp.c: In function 'ipcomp_alloc_tfms': net/xfrm/xfrm_ipcomp.c:285: warning: assignment from incompatible pointer type
--- net/xfrm/xfrm_ipcomp.c | 7 ++----- 1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c index e5246fb..898c899 100644 --- a/net/xfrm/xfrm_ipcomp.c +++ b/net/xfrm/xfrm_ipcomp.c @@ -276,18 +276,15 @@ static struct crypto_comp * __percpu *ipcomp_alloc_tfms(const char *alg_name) struct crypto_comp * __percpu *tfms; int cpu; - /* This can be any valid CPU ID so we don't need locking. */ - cpu = raw_smp_processor_id(); list_for_each_entry(pos, &ipcomp_tfms_list, list) { struct crypto_comp *tfm; - tfms = pos->tfms; - tfm = *per_cpu_ptr(tfms, cpu); + tfm = (struct crypto_comp *) __this_cpu_read(pos->tfms); if (!strcmp(crypto_comp_name(tfm), alg_name)) { pos->users++; - return tfms; + return pos->tfms; } } -- 1.7.1
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