Commit a22fde8e authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Catalin Marinas

perf: dsu: Use signed field for dsu_pmu->num_counters

We set dsu_pmu->num_counters to -1, when the DSU is allocated
but not initialised when none of the CPUs are active in the DSU.
However, we use an unsigned field for num_counters. Switch this
to a signed field.

Fixes: 7520fa99 ("perf: ARM DynamIQ Shared Unit PMU support")
Reported-by: default avatarDan Carpenter <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: default avatarSuzuki K Poulose <[email protected]>
Signed-off-by: default avatarCatalin Marinas <[email protected]>
parent 67948af4
......@@ -120,7 +120,7 @@ struct dsu_pmu {
cpumask_t associated_cpus;
cpumask_t active_cpu;
struct hlist_node cpuhp_node;
u8 num_counters;
s8 num_counters;
int irq;
DECLARE_BITMAP(cpmceid_bitmap, DSU_PMU_MAX_COMMON_EVENTS);
};
......
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