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| author | Pengjie Zhang <zhangpengjie2@huawei.com> | 2026-05-06 12:08:51 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-05-19 14:17:09 +0300 |
| commit | e7cec385d2c6726e692d057f91f20b08c2981af3 (patch) | |
| tree | 453048739754da3f7bbb3ed23bb88bd96a6d20b4 /include/linux/pps_kernel.h | |
| parent | 827ce94e0897a70241abf810b1d3d7d083053a39 (diff) | |
| download | linux-e7cec385d2c6726e692d057f91f20b08c2981af3.tar.xz | |
arm64: smp: Do not mark secondary CPUs possible under nosmp
Under nosmp (maxcpus=0), arm64 never brings up secondary CPUs.
smp_prepare_cpus() already treats this as a UP-mandated boot and returns
before marking secondary CPUs present. However, smp_init_cpus() may still
enumerate firmware-described secondary CPUs and mark them possible before
that point.
Avoid marking secondary CPUs possible when nosmp/maxcpus=0 is in effect,
so that cpu_possible_mask reflects the nosmp boot policy for this boot.
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Pengjie Zhang <zhangpengjie2@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux/pps_kernel.h')
0 files changed, 0 insertions, 0 deletions