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| author |   Heyi Guo <guoheyi@huawei.com> | 2019-12-02 19:37:02 +0800 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2019-12-06 14:11:31 +0000 |
| commit | de858040ee80e6f41bf0b40090f1c71f966a61b3 (patch) | |
| tree | 5da0192b34f3ccb1cb3fa738839a42a7fe65c37b /drivers/soc/mediatek/mtk-cmdq-helper.c | |
| parent | arm64: ftrace: fix ifdeffery (diff) | |
| download | linux-dev-de858040ee80e6f41bf0b40090f1c71f966a61b3.tar.xz linux-dev-de858040ee80e6f41bf0b40090f1c71f966a61b3.zip | |
arm64: entry: refine comment of stack overflow check
Stack overflow checking can be done by testing sp & (1 << THREAD_SHIFT)
only for the stacks are aligned to (2 << THREAD_SHIFT) with size of
(1 << THREAD_SIZE), and this is the case when CONFIG_VMAP_STACK is set.
Fix the code comment to avoid confusion.
Cc: Will Deacon <will@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Heyi Guo <guoheyi@huawei.com>
[catalin.marinas@arm.com: Updated comment following Mark's suggestion]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'drivers/soc/mediatek/mtk-cmdq-helper.c')
0 files changed, 0 insertions, 0 deletions