From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02962270ED2; Sat, 7 Feb 2026 15:42:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770478939; cv=none; b=G4+c5mnDjeBjiv/mT05kBpYnxdL6S3Gm2OE/zxA4+cZQ9nDVDet+rLKian9vqw/NOn8Wn6E+21f0EyjAPVAovTtV3C1TaDSBClfhzE5nfBtaX03QN9O9t8f+CdyzHYXPgznJFjEjIC6r473jHbz9MUU0MTjSYzvlXzqzjJ0B3Ps= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770478939; c=relaxed/simple; bh=ri6f3vyHX+IIfBScLjMKkNIPOLVtFjJp3CZtLRqWUwM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=US55jicYwRA82LitkmLBGagya/q152LmTiVkiD7m91ezxWPQyUL9Nfne3McWkqMIvgaNg/h0NNu/ccTLdmck8dBNjoLlzW/6TE1TXMQ6D6ke9soPicJesF0b7Sy3TVJ2N4s6oqSAAdZ/O5spjvSsWTiZv548c0pKbB7kMRhkU24= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=LP3smMve; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="LP3smMve" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04EF3C116D0; Sat, 7 Feb 2026 15:42:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770478938; bh=ri6f3vyHX+IIfBScLjMKkNIPOLVtFjJp3CZtLRqWUwM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=LP3smMvekHtQ2R4dyIVJ1F5jTXKcu4MsOL2g/kimZSP5nHFBk6Y/pjARckNW9RaJU rIjgCRGOB4hnpvEf6MxVfMOmfCmlz83dR/ifVOcEO8l7oICRt5RgESJQgJ3FVN42WF 08U/VjEKxF2KmdAM28fo0YGWuRD8WnwKFj85XO+o= Date: Sat, 7 Feb 2026 16:42:15 +0100 From: Greg KH To: Jeongjun Park Cc: stable@vger.kernel.org, tglx@linutronix.de, Julia.Lawall@inria.fr, akpm@linux-foundation.org, anna-maria@linutronix.de, arnd@arndb.de, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, linux@roeck-us.net, luiz.dentz@gmail.com, marcel@holtmann.org, maz@kernel.org, peterz@infradead.org, rostedt@goodmis.org, sboyd@kernel.org, viresh.kumar@linaro.org, linux-staging@lists.linux.dev Subject: Re: [PATCH 5.15.y 00/14] timers: Provide timer_shutdown[_sync]() Message-ID: <2026020754-boxing-tug-de15@gregkh> References: <20251128160539.358938-1-aha310510@gmail.com> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251128160539.358938-1-aha310510@gmail.com> On Sat, Nov 29, 2025 at 01:05:25AM +0900, Jeongjun Park wrote: > The "timers: Provide timer_shutdown[_sync]()" patch series implemented a > useful feature that addresses various bugs caused by attempts to rearm > shutdown timers. > > https://lore.kernel.org/all/20221123201306.823305113@linutronix.de/ > > However, this patch series was not fully backported to versions prior to > 6.2, requiring separate patches for older kernels if these bugs were > encountered. > > The biggest problem with this is that even if these bugs were discovered > and patched in the upstream kernel, if the maintainer or author didn't > create a separate backport patch for versions prior to 6.2, the bugs would > remain untouched in older kernels. > > Therefore, to reduce the hassle of having to write a separate patch, we > should backport the remaining unbackported commits from the > "timers: Provide timer_shutdown[_sync]()" patch series to versions prior > to 6.2. You forgot to include commit 20739af07383 ("timers: Fix NULL function pointer race in timer_shutdown_sync()") in this series. I've now taken them all, let's see how it goes! thanks, greg k-h