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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@perches.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sukadev Bhattiprolu 2015-07-14 20:01:49 -07:00 committed by Michael Ellerman
parent 40386217cd
commit 465345ca38
1 changed files with 1 additions and 3 deletions
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4
arch/powerpc/perf/hv-24x7.c
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@ -1104,7 +1104,6 @@ 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;
BUILD_BUG_ON(sizeof(*request_buffer) > 4096);
BUILD_BUG_ON(sizeof(*result_buffer) > 4096);
@ -1125,8 +1124,7 @@ 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]);
*count = be64_to_cpu(result_buffer->results[0].elements[0].element_data[0]);
out:
put_cpu_var(hv_24x7_reqb);