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[V2] selftests/powerpc/pmu: Fix unsigned function returning negative constant

Message ID 1650955583-29581-1-git-send-email-baihaowen@meizu.com (mailing list archive)
State Superseded
Headers show
Series [V2] selftests/powerpc/pmu: Fix unsigned function returning negative constant | expand

Commit Message

Haowen Bai April 26, 2022, 6:46 a.m. UTC 
The function __perf_reg_mask has an unsigned return type, but returns a
negative constant to indicate an error condition. So we change unsigned
to int.

Fixes: 5f6c3061af7c ("selftests/powerpc/pmu: Add utility functions to post
process the mmap buffer")

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
---
V1->V2: add fix tag.

 tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
index fca054bbc094..c01a31d5f4ee 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
@@ -274,7 +274,7 @@  u64 *get_intr_regs(struct event *event, void *sample_buff)
 	return intr_regs;
 }
 
-static const unsigned int __perf_reg_mask(const char *register_name)
+static const int __perf_reg_mask(const char *register_name)
 {
 	if (!strcmp(register_name, "R0"))
 		return 0;