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 34C7E2591 for ; Sat, 5 Nov 2022 14:47:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51DE4C433C1; Sat, 5 Nov 2022 14:47:32 +0000 (UTC) Date: Sat, 5 Nov 2022 10:47:30 -0400 From: Steven Rostedt To: Guenter Roeck Cc: linux-kernel@vger.kernel.org, Linus Torvalds , Thomas Gleixner , Stephen Boyd , Anna-Maria Gleixner , Andrew Morton , rcu@vger.kernel.org, linux-doc@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-edac@vger.kernel.org, cgroups@vger.kernel.org, linux-block@vger.kernel.org, linux-acpi@vger.kernel.org, linux-atm-general@lists.sourceforge.net, netdev@vger.kernel.org, linux-pm@vger.kernel.org, drbd-dev@lists.linbit.com, linux-bluetooth@vger.kernel.org, openipmi-developer@lists.sourceforge.net, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, intel-gfx@lists.freedesktop.org, linux-input@vger.kernel.org, linux-parisc@vger.kernel.org, linux-leds@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, linux-scsi@vger.kernel.org, linux-staging@lists.linux.dev, linux-ext4@vger.kernel.org, linux-nilfs@vger.kernel.org, bridge@lists.linux-foundation.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, lvs-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, tipc-discussion@lists.sourceforge.net, alsa-devel@alsa-project.org Subject: Re: [PATCH v4a 00/38] timers: Use timer_shutdown*() before freeing timers Message-ID: <20221105104730.2bfd6740@rorschach.local.home> In-Reply-To: <20221105141817.GF1606271@roeck-us.net> References: <20221105060024.598488967@goodmis.org> <20221105141817.GF1606271@roeck-us.net> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) 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-Transfer-Encoding: 7bit On Sat, 5 Nov 2022 07:18:17 -0700 Guenter Roeck wrote: > Just in case you didn't notice: > > Looking through the resulting code, I think some of the remaining > calls to del_singleshot_timer_sync() can be converted as well. > > The calls in drivers/staging/wlan-ng/prism2usb.c:prism2sta_disconnect_usb() > are obvious (the containing data structure is freed in the same function). > For drivers/char/tpm/tpm-dev-common.c:tpm_common_release(), the containing > data structure is freed in the calling code. Well, actually it is. In patch 5/38: -#define del_singleshot_timer_sync(t) del_timer_sync(t) +#define del_singleshot_timer_sync(t) timer_shutdown_sync(t) This was the reason for patch 1. It was the only user of that function that reused the timer after calling that function. -- Steve