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Thu, 06 Aug 2026 20:50:45 -0700 (PDT) Sender: Guenter Roeck Date: Thu, 6 Aug 2026 20:50:44 -0700 From: Guenter Roeck To: Mayank Rungta Cc: Andrew Morton , Wim Van Sebroeck , Tzung-Bi Shih , Douglas Anderson , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: Re: [PATCH 2/2] watchdog: pretimeout: Convert dump pretimeout governor to tristate Message-ID: <604ee620-5d1b-4134-9e92-6d3d54e7cc52@roeck-us.net> References: <20260730-export-cpu-backtrace-apis-v1-0-bace8e1cb817@google.com> <20260730-export-cpu-backtrace-apis-v1-2-bace8e1cb817@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260730-export-cpu-backtrace-apis-v1-2-bace8e1cb817@google.com> On Thu, Jul 30, 2026 at 03:00:22PM -0700, Mayank Rungta wrote: > From: Mayank Rungta > > Commit 645ad41da8b2 ("watchdog: pretimeout: Add "dump" pretimeout > governor") added the "dump" watchdog pretimeout governor, but restricted > it to built-in code because trigger_all_cpu_backtrace() was not exported > to loadable modules. > > Now that CPU backtrace APIs are supported for loadable kernel modules > via cpumask_backtrace(), convert WATCHDOG_PRETIMEOUT_GOV_DUMP to > tristate. This allows kernels to deliver the pretimeout governor as a > loadable kernel module. > > Signed-off-by: Mayank Rungta > Reviewed-by: Douglas Anderson > Reviewed-by: Tzung-Bi Shih > Acked-by: Guenter Roeck > Reviewed-by: Andrew Morton Applied. Thanks, Guenter