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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-13 19:28:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-17 15:29:31 +0100 |
| commit | cb6b0cba1ea9d3f71bafef4eff4e7a9547085752 (patch) | |
| tree | 1916a70d6a57cca8234db52f8b089a7972343aed /arch/arm64 | |
| parent | 60260272dc59ca0da233de5ff452859f2e981bdb (diff) | |
| download | linux-stable-cb6b0cba1ea9d3f71bafef4eff4e7a9547085752.tar.gz linux-stable-cb6b0cba1ea9d3f71bafef4eff4e7a9547085752.tar.bz2 linux-stable-cb6b0cba1ea9d3f71bafef4eff4e7a9547085752.zip | |
arm64: cpufeature: move to use bus_get_dev_root()
Direct access to the struct bus_type dev_root pointer is going away soon
so replace that with a call to bus_get_dev_root() instead, which is what
it is there for.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230313182918.1312597-11-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 2e3e55139777..f3bab4bd0917 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1490,10 +1490,18 @@ static const DEVICE_ATTR_RO(aarch32_el0); static int __init aarch32_el0_sysfs_init(void) { + struct device *dev_root; + int ret = 0; + if (!allow_mismatched_32bit_el0) return 0; - return device_create_file(cpu_subsys.dev_root, &dev_attr_aarch32_el0); + dev_root = bus_get_dev_root(&cpu_subsys); + if (dev_root) { + ret = device_create_file(dev_root, &dev_attr_aarch32_el0); + put_device(dev_root); + } + return ret; } device_initcall(aarch32_el0_sysfs_init); |