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[PATCH v3 2/8] powerpc/perf/hv-24x7: Simplify extracting counter from result buffer

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Simplify code that extracts a 24x7 counter from the HCALL's result buffer.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.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

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[PATCH v3 0/8] Implement group-read of events using txn interface Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
  [PATCH v3 4/8] perf: Split perf_event_read() and perf_event_count() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
  [PATCH v3 7/8] perf: Define PMU_TXN_READ interface Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
    Re: [PATCH v3 7/8] perf: Define PMU_TXN_READ interface Peter Zijlstra <peterz@infradead.org> - 2015-07-17 00:30 +0200
      Re: [PATCH v3 7/8] perf: Define PMU_TXN_READ interface Peter Zijlstra <peterz@infradead.org> - 2015-07-22 08:00 +0200
  [PATCH v3 3/8] perf: Add a flags parameter to pmu txn interfaces Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
    Re: [PATCH v3 3/8] perf: Add a flags parameter to pmu txn interfaces Peter Zijlstra <peterz@infradead.org> - 2015-07-16 22:20 +0200
      Re: [PATCH v3 3/8] perf: Add a flags parameter to pmu txn interfaces Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-16 23:30 +0200
    Re: [PATCH v3 3/8] perf: Add a flags parameter to pmu txn interfaces Peter Zijlstra <peterz@infradead.org> - 2015-07-16 22:50 +0200
  [PATCH v3 5/8] perf: Split perf_event_read_value() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
    Re: [PATCH v3 5/8] perf: Split perf_event_read_value() Peter Zijlstra <peterz@infradead.org> - 2015-07-16 23:20 +0200
      Re: [PATCH v3 5/8] perf: Split perf_event_read_value() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-16 23:50 +0200
  [PATCH v3 1/8] powerpc/perf/hv-24x7: Whitespace - fix parameter alignment Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200
  [PATCH v3 2/8] powerpc/perf/hv-24x7: Simplify extracting counter from result buffer Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2015-07-15 05:10 +0200

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