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Message-Id: <1436929315-28520-3-git-send-email-sukadev@linux.vnet.ibm.com> Date: Tue, 14 Jul 2015 20:01:49 -0700 From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, Michael Ellerman <mpe@...erman.id.au> Cc: <linux-kernel@...r.kernel.org>, linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org, sparclinux@...r.kernel.org Subject: [PATCH v3 2/8] powerpc/perf/hv-24x7: Simplify extracting counter from result buffer Simplify code that extracts a 24x7 counter from the HCALL's result buffer. Suggested-by: Joe Perches <joe@...ches.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> --- arch/powerpc/perf/hv-24x7.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index 9d73c69..4d1a8d1 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -1104,7 +1104,7 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count) unsigned long ret; struct hv_24x7_request_buffer *request_buffer; struct hv_24x7_data_result_buffer *result_buffer; - struct hv_24x7_result *resb; + __be64 val; BUILD_BUG_ON(sizeof(*request_buffer) > 4096); BUILD_BUG_ON(sizeof(*result_buffer) > 4096); @@ -1125,8 +1125,8 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count) } /* process result from hcall */ - resb = &result_buffer->results[0]; - *count = be64_to_cpu(resb->elements[0].element_data[0]); + val = result_buffer->results[0].elements[0].element_data[0]; + *count = be64_to_cpu(val); out: put_cpu_var(hv_24x7_reqb); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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