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 28AA646B5 for ; Mon, 16 Jan 2023 16:27:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79964C433D2; Mon, 16 Jan 2023 16:27:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673886467; bh=zp5V+hBPDE1ddKmb/PSiM2t6XqB8A6P5AfH003LQ1jA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IkDscaHJvDEv4JT9+Prra7NFFVFJdIUH2umOoWQ8K8FFKANHM+EE4NtStrZ1ny/nd Z69dw+bZz+qOBi6pO0WwVmvC4vImhtULbr7ftcd8cFNUHq9b9EAtulY2/GP+HCnIJx p2F6YSYfH1y4PPVhcgDjcn8DXrtC4fum55+IIPgs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wei Wang , Midas Chien , Connor OBrien , Kees Cook , Anton Vorontsov , Colin Cross , Tony Luck , kernel test robot , kernel-team@android.com, John Stultz , Sasha Levin Subject: [PATCH 5.4 441/658] pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES Date: Mon, 16 Jan 2023 16:48:49 +0100 Message-Id: <20230116154929.706776420@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154909.645460653@linuxfoundation.org> References: <20230116154909.645460653@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: John Stultz [ Upstream commit 2f4fec5943407318b9523f01ce1f5d668c028332 ] In commit 76d62f24db07 ("pstore: Switch pmsg_lock to an rt_mutex to avoid priority inversion") I changed a lock to an rt_mutex. However, its possible that CONFIG_RT_MUTEXES is not enabled, which then results in a build failure, as the 0day bot detected: https://lore.kernel.org/linux-mm/202212211244.TwzWZD3H-lkp@intel.com/ Thus this patch changes CONFIG_PSTORE_PMSG to select CONFIG_RT_MUTEXES, which ensures the build will not fail. Cc: Wei Wang Cc: Midas Chien Cc: Connor O'Brien Cc: Kees Cook Cc: Anton Vorontsov Cc: Colin Cross Cc: Tony Luck Cc: kernel test robot Cc: kernel-team@android.com Fixes: 76d62f24db07 ("pstore: Switch pmsg_lock to an rt_mutex to avoid priority inversion") Reported-by: kernel test robot Signed-off-by: John Stultz Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20221221051855.15761-1-jstultz@google.com Signed-off-by: Sasha Levin --- fs/pstore/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig index 8f0369aad22a..9fe46cc26403 100644 --- a/fs/pstore/Kconfig +++ b/fs/pstore/Kconfig @@ -118,6 +118,7 @@ config PSTORE_CONSOLE config PSTORE_PMSG bool "Log user space messages" depends on PSTORE + select RT_MUTEXES help When the option is enabled, pstore will export a character interface /dev/pmsg0 to log user space messages. On reboot -- 2.35.1