Linux-RISC-V Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: Paul Walmsley <pjw@kernel.org>
To: Xixin Liu <liuxixin@kylinos.cn>
Cc: linux-riscv@lists.infradead.org, atish.patra@linux.dev,
	 anup@brainfault.org, will@kernel.org, mark.rutland@arm.com,
	pjw@kernel.org,  palmer@dabbelt.com, aou@eecs.berkeley.edu,
	alex@ghiti.fr,  linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org,  linux-kernel@vger.kernel.org
Subject: Re: [PATCH] perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ
Date: Fri, 7 Aug 2026 18:45:00 -0600 (MDT)	[thread overview]
Message-ID: <9109b689-1145-c714-ebe0-ec368f242a78@kernel.org> (raw)
In-Reply-To: <prp0001riscv.1786064390.git.liuxixin@kylinos.cn>

Hi,

On Fri, 7 Aug 2026, Xixin Liu wrote:

> The overflow IRQ handler dereferences cpu_hw_evt before the null check.
> Move the check first. Defensive only; the cookie is valid on the normal
> path today.
> 
> Signed-off-by: Xixin Liu <liuxixin@kylinos.cn>

Could you please add a Fixes: tag?  Also, if it was written with LLM 
assistance, please add the appropriate Assisted-by: tag.

thanks 


- Paul

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

      reply	other threads:[~2026-08-08  0:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-07  0:59 [PATCH] perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ Xixin Liu
2026-08-08  0:45 ` Paul Walmsley [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=9109b689-1145-c714-ebe0-ec368f242a78@kernel.org \
    --to=pjw@kernel.org \
    --cc=alex@ghiti.fr \
    --cc=anup@brainfault.org \
    --cc=aou@eecs.berkeley.edu \
    --cc=atish.patra@linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-perf-users@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=liuxixin@kylinos.cn \
    --cc=mark.rutland@arm.com \
    --cc=palmer@dabbelt.com \
    --cc=will@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox