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Subject[PATCH] driver: perf: arm_pmu: Drop some unused arguments from armv8_pmu_init()
Date
There is just a single call site remaining for armv8_pmu_init(), passing on
NULL pointers for all custom 'struct attribute_group'. These arguments are
not really getting used and hence can just be dropped off, thus simplifying
the code further.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
This applies on v6.6-rc5.

drivers/perf/arm_pmuv3.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/perf/arm_pmuv3.c b/drivers/perf/arm_pmuv3.c
index 8fcaa26f0f8a..fe4db1831662 100644
--- a/drivers/perf/arm_pmuv3.c
+++ b/drivers/perf/arm_pmuv3.c
@@ -1187,10 +1187,7 @@ static void armv8_pmu_register_sysctl_table(void)
}

static int armv8_pmu_init(struct arm_pmu *cpu_pmu, char *name,
- int (*map_event)(struct perf_event *event),
- const struct attribute_group *events,
- const struct attribute_group *format,
- const struct attribute_group *caps)
+ int (*map_event)(struct perf_event *event))
{
int ret = armv8pmu_probe_pmu(cpu_pmu);
if (ret)
@@ -1212,13 +1209,9 @@ static int armv8_pmu_init(struct arm_pmu *cpu_pmu, char *name,

cpu_pmu->name = name;
cpu_pmu->map_event = map_event;
- cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = events ?
- events : &armv8_pmuv3_events_attr_group;
- cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = format ?
- format : &armv8_pmuv3_format_attr_group;
- cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_CAPS] = caps ?
- caps : &armv8_pmuv3_caps_attr_group;
-
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = &armv8_pmuv3_events_attr_group;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = &armv8_pmuv3_format_attr_group;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_CAPS] = &armv8_pmuv3_caps_attr_group;
armv8_pmu_register_sysctl_table();
return 0;
}
@@ -1226,7 +1219,7 @@ static int armv8_pmu_init(struct arm_pmu *cpu_pmu, char *name,
static int armv8_pmu_init_nogroups(struct arm_pmu *cpu_pmu, char *name,
int (*map_event)(struct perf_event *event))
{
- return armv8_pmu_init(cpu_pmu, name, map_event, NULL, NULL, NULL);
+ return armv8_pmu_init(cpu_pmu, name, map_event);
}

#define PMUV3_INIT_SIMPLE(name) \
--
2.25.1
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