From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) (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 E7F4948BD32 for ; Wed, 1 Jul 2026 12:37:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.97.179.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782909429; cv=none; b=h9FUh7VSH2UY5XdpKyfetQ6RJY6Bs9wg9vc40S3sgKYwHPfoCdA4TIwD6PU8s6rIpL0dShuIlyW7MjPB/9yJJhAQhA8Cb4rkevxKn3IsV4v/ATkPgkn6eqZN4aClzucsDnZaVx9iv7rz7dO2q33XDhisfNbqW3+xaJz7x6RvPYw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782909429; c=relaxed/simple; bh=6D837ZIlANZ01CTiHPwoOI9Bc9dWn7vEAOTpm0nVEvc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=GrND30wxhWR36r0TGieMYXf4XOfrp1H2YJfULbKlWV2jYVZ/tY0eNwNO1Z93joxV1GmeQPtihZm62vfopjnBpqZTor/IBmvidMt4MXaWQiFoTSPNdAffa0KRfCSOc3x8vBTjVu8ecuQANyF6VoRdp/B6oRw66EJkZMZJ4o0UCNc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=ewonPiMV; arc=none smtp.client-ip=213.97.179.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="ewonPiMV" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=M0iOyjfSHjf2mrKE2o//8/fq98LeWZ5eBPklHG/9O+M=; b=ewonPiMVW9QRKZee5AEm6V7zsE cfkwXXl4Yt7w0D4OtExeIR4v/xuElcQtwnKP4XvwCXOkUsPQWCamwarvxGy4pOBuMek0idzvsVj95 468eyKB1QpgfIIQuJl4km9mAIL7eDs/SALHCrJzjLxyGN+4lf7BXUXqYiIBYtzw/cS0WTRJHml2e/ 5o4zbprc0+m93Ps0sF7Ju6FiQ77Ad2eHQH22QHTXxrc8ubNyZoPHHqrhLKgBwoUQnpnQr1wPM16yH OUH3f10hLdrQWgEenc2AzAtqWjMfuITTGt1sL5wLzrhQtOx0cAcGDWw5tDQj63imaA/nAWDrvdwi+ z+h2hF1g==; Received: from 201-69-111-23.dial-up.telesp.net.br ([201.69.111.23] helo=[192.168.15.100]) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim) id 1weuBY-007Yhz-B4; Wed, 01 Jul 2026 14:37:00 +0200 Message-ID: <02df60de-2f8a-439e-81d3-650113ccbcfe@igalia.com> Date: Wed, 1 Jul 2026 09:36:55 -0300 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 1/1] futex: remove unnecessary NULL check before kvfree() To: Vasileios Almpanis Cc: Peter Zijlstra , Darren Hart , Davidlohr Bueso , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar References: <20260630133530.2577832-1-vasilisalmpanis@gmail.com> Content-Language: en-US From: =?UTF-8?Q?Andr=C3=A9_Almeida?= In-Reply-To: <20260630133530.2577832-1-vasilisalmpanis@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Em 30/06/2026 10:35, Vasileios Almpanis escreveu: > NULL check before kvfree() is unnecessary and triggers a Coccinelle > warning, since kvfree() handles NULL arguments internally. > > Reported by ifnullfree.cocci Coccinelle semantic patch script. > > Signed-off-by: Vasileios Almpanis Reviewed-by: André Almeida