diff options
| author | Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2015-06-30 13:50:28 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-07-27 14:31:44 +1000 |
| commit | f0322f7f1e2165fbf83530a424ef6ebeacbf4bca (patch) | |
| tree | ac1bd65a4d5ba41607e2c054c23e8bd93892d6c8 | |
| parent | 465345ca387ed491c467689ec2ac1ecbe1d84c3d (diff) | |
powerpc/perf: Change type of the bhrb_users variable
This patch just changes data type of bhrb_users variable from
int to unsigned int because it never contains a negative value.
Reported-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/perf/core-book3s.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index d90893b76e7c..b0382f3f1095 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -53,7 +53,7 @@ struct cpu_hw_events { /* BHRB bits */ u64 bhrb_filter; /* BHRB HW branch filter */ - int bhrb_users; + unsigned int bhrb_users; void *bhrb_context; struct perf_branch_stack bhrb_stack; struct perf_branch_entry bhrb_entries[BHRB_MAX_ENTRIES]; @@ -369,8 +369,8 @@ static void power_pmu_bhrb_disable(struct perf_event *event) if (!ppmu->bhrb_nr) return; + WARN_ON_ONCE(!cpuhw->bhrb_users); cpuhw->bhrb_users--; - WARN_ON_ONCE(cpuhw->bhrb_users < 0); perf_sched_cb_dec(event->ctx->pmu); if (!cpuhw->disabled && !cpuhw->bhrb_users) { |