From: Catalin Marinas <catalin.marinas@arm.com>
To: Heyi Guo <guoheyi@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, wanghaibin.wang@huawei.com,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH] arm64/kernel/entry: refine comment of stack overflow check
Date: Fri, 6 Dec 2019 13:58:32 +0000 [thread overview]
Message-ID: <20191206135832.GG32767@arrakis.emea.arm.com> (raw)
In-Reply-To: <20191202113702.34158-1-guoheyi@huawei.com>
On Mon, Dec 02, 2019 at 07:37:02PM +0800, Heyi Guo wrote:
> 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.
>
> Signed-off-by: Heyi Guo <guoheyi@huawei.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
Queued with Mark's suggested update.
--
Catalin
prev parent reply other threads:[~2019-12-06 13:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-02 11:37 Heyi Guo
2019-12-02 12:33 ` Mark Rutland
2019-12-03 0:55 ` Guoheyi
2019-12-06 13:58 ` Catalin Marinas [this message]
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