perf: arm_pmu: use DEVICE_ATTR_RO macro
authorYueHaibing <yuehaibing@huawei.com>
Fri, 28 May 2021 01:41:30 +0000 (09:41 +0800)
committerWill Deacon <will@kernel.org>
Tue, 1 Jun 2021 13:22:44 +0000 (14:22 +0100)
commit29c043760eea902f170b6485c6e88a5ef33a9908
tree2d073a9d87f057db271669787175382a65544166
parent2db5223731b79cf5c617dc391ceb21dd5cb93237
perf: arm_pmu: use DEVICE_ATTR_RO macro

Use DEVICE_ATTR_RO helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210528014130.7708-1-yuehaibing@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
drivers/perf/arm_pmu.c