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 45A581B393A for ; Wed, 26 Mar 2025 10:25:30 +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=1742984731; cv=none; b=oTk1yuYEPbQfUKxVoS335BZjgrsuosITArgXvirZzZasbbvDbO1ggl1ChNFrukXOnWr27y0YqHjq4d9bWkaKoeTenTgHIU8zinKxc67WrXpzD3YFtSKWx8T/O+KJyrSH5P5PZpTNKaBBkfbzochQjrsGH1P2za3xBhLdKETVQ1w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742984731; c=relaxed/simple; bh=BGSnVely+jUpMKxLp/EEVgT1NfBEz7/p8sFA0+9Isgk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Hw7q8mgHbwzO+DUOv5N4af0bqJPfUxOdzfyhQ1MgZMrsMYMMCkqj13Q3J8UBY0K8oNkdKdHwicO+N4nBL8uWCg13lKTeIxljorPxbZl3YmMSrQELC+HcrPSyngMCpYtFVb2Y9/pvOIy0j/XG90daotQRM5OorUUBn+z3QBffdFg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZsATM2Ex; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZsATM2Ex" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB9A7C4CEED; Wed, 26 Mar 2025 10:25:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742984730; bh=BGSnVely+jUpMKxLp/EEVgT1NfBEz7/p8sFA0+9Isgk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ZsATM2ExGabj3ctOMjy98aJmNHgy64REaeBcEyEQzt6onqGGoNGq0T4bsO/7kUBL3 bInzZEkpx2/somnFO6UHBJDHvJUyN6QsPlYSNyZb92azrE6x4A83ldb5/6MkVUwEeb APwfpxldS98izh8DemsBPpe2Edl59ROp2QVjeEGEyG0CqIb1TAeB4xIyVEqLufHgAU zRgBLgcHm8z4vQGDJQdbjC7hfqRKTDHgpnzOwjcknpQUCrCvQgo2zzsN68TRCD01Ga KH8zuLZaaN/vTKgCE+fMvlxSTmp58yubwPxKe7P6fpMqGMMOeiG+ed/nTp5Yjksl8o NKvXadhD1mgNA== Message-ID: <2cab9891-31fa-4585-b7fb-639334a6cf63@kernel.org> Date: Wed, 26 Mar 2025 11:25:27 +0100 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH v2] mptcp: pm: Return local variable instead of freed pointer Content-Language: en-GB, fr-BE To: Thorsten Blum Cc: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang References: <20250325163251.135510-2-thorsten.blum@linux.dev> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Thorsten, On 25/03/2025 17:32, Thorsten Blum wrote: > Commit e4c28e3d5c090 ("mptcp: pm: move generic PM helpers to pm.c") > removed an unnecessary if-check, which resulted in returning a freed > pointer. > > This still works due to the implicit boolean conversion when returning > the freed pointer from mptcp_remove_anno_list_by_saddr(), but it can be > confusing and potentially error-prone. To improve clarity, add a local > variable to explicitly return a boolean value instead. Thank you for your patch! Now in our tree (feat. for net-next): New patches for t/upstream: - 5172fc837d0c: mptcp: pm: Return local variable instead of freed pointer - Results: c0c93d7a6bc6..7723f461d379 (export) Tests are now in progress: - export: https://github.com/multipath-tcp/mptcp_net-next/commit/5bdccde61635c4e5d2ce60205a3d7356f2b917ea/checks Cheers, Matt -- Sponsored by the NGI0 Core fund.