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 28656183098 for ; Mon, 30 Sep 2024 11:50:04 +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=1727697005; cv=none; b=jRNaJ2eP7h+KA7a8tBx+4hOjt9Q9/daFLyuWidxZoDI2ybhB5jkYN6KRSmFQlLeZWFhnMQK3GxmCfuO82gS48IjpFgkMRwLUg8GL0JVg+AxDLyx+dQzUFLnSslKx3BmK5VEZicFvsbDUbYeZ5+bLI43TbzhCyj8mGJFDUCGmQhs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727697005; c=relaxed/simple; bh=i/FxVXVYH+scsiZDaJw4R6hLXSh91ZOzy7Bif8WyEX8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pto4DCj5bADIM1xbIvUdDATz/uanAhAZBdq0fkOtbvgf9U5YEByxbvCGmpcvw1ToOJSfIERtLQ6aH4ABGiI8XDhqBnuLoaCtjTo76LtyXv6ZtI7Zkj5liwnZo7CjBhsoLeC6Kd5neAV1YGHC4KEqs32MARSA4wI6pmUWX8v8Yco= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dlV5GwuT; 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="dlV5GwuT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4B92C4CEC7; Mon, 30 Sep 2024 11:50:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727697004; bh=i/FxVXVYH+scsiZDaJw4R6hLXSh91ZOzy7Bif8WyEX8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=dlV5GwuTSeA/edzqhjopPnqVXhoKZ99Kpc1yexNT3XmFwyOgPQFkzS8Uw5VLVh89C cVrMzANO244AnZKrCFC/x8T9Lnwn5yrm5HEyX6YkKV+x/yJOviOaEFSsyksQ98a+0p eWfAdpaQidPQoyGSeY5nS/KIY83Th1rlsdfXSeSnGHvdcI//LfiSHS0XD63FuO+tjn sz8b8sbfJ02TsFLMYCCgZ4S8k8mX23zE3IIs9ln/sij5Y5AlUiGbkNTcMoWsuxBiIk iElsBxrWUt18jsV04ffufZi60LL7QNB9Zf3i7IsFQDqENo08XCV/If+LNWeYNeDvJC r5xhRzhBlM1lw== Message-ID: Date: Mon, 30 Sep 2024 13:50:01 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] w1: Use kfree_sensitive() instead of memset(0) and kfree() To: Thorsten Blum Cc: linux-kernel@vger.kernel.org References: <20240930114404.80910-2-thorsten.blum@linux.dev> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 30/09/2024 13:44, Thorsten Blum wrote: > Use kfree_sensitive() to simplify w1_unref_slave() and remove the > following Coccinelle/coccicheck warning reported by > kfree_sensitive.cocci: > > WARNING opportunity for kfree_sensitive/kvfree_sensitive So are you fixing coccinelle just to hide the warning or actually fixing issue? Why this structure should be zeroed? > > Signed-off-by: Thorsten Blum > --- > Please note: this change assumes that #ifdef DEBUG is no longer needed > and we should always zero out the memory. But why are you assuming that? Your patch is not equivalent and I do not see any explanation in commit msg why is that. Best regards, Krzysztof