From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [217.72.192.78]) (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 6427112A163; Tue, 16 Apr 2024 12:14:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.72.192.78 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713269684; cv=none; b=bnvr7kTsmzhFPYHDyJaTicyxcXliQLtzVBUmCNT9ysZKSAY2W5YW+/hIgFO+GMI2HQFWGFytq9vhl8LbQU+6pIcZcEQ8bEJdLgHVJaDMDOb3mVPHr3cXIG99hArPTGdfSlNLcjGuWAZ+T1O//XIxjD1CybFM6y8PhVtC54/MeTE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713269684; c=relaxed/simple; bh=F3vyWR29X0lXAaTUtv3IWAlN8f9D6N5W3tJOFc7fnmo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Bp5ileCkouCkVYdBy6WSf92Ptz0VXbf0IQ+lhYVx/OuXusu7KYA+ms0OUrN2cG8C7wJLCuGjx+LrSwpyAkO5cqLHtTNLiZ13d4sJ/uIPCSNCiXJt/0+8Zop2f+y9rN6wJ4pkjTYypuLxM27D3qNEjvwMaNgYvEswdXSdALvOXVo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b=DzzFlkEU; arc=none smtp.client-ip=217.72.192.78 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b="DzzFlkEU" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1713269670; x=1713874470; i=markus.elfring@web.de; bh=Lv4Wq6qu9p1ZBlPnYwsPtJ9DrW7B8a2DGJ+zDiVy+Vo=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:Subject:To:Cc: References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=DzzFlkEUke+DhEGxPHdIS8e4/ngQIMUtZ8HEZd1HZgFq6/3lNsQorRZX1khJ9Xwt 0SGBJYOr+f/Dd3q8G4gJWCI+OR+6jFNWWoWBY1ra4Nv/dN6urer/7z/Tl7epWgF2B uydQzFiYsdAg+egdNjjkO8pYx6Dp55rvzfdB7q91aevhS8/NZnjWfzqjTeBb/I3ba hYVB6vNVLFlruAKhELns3sYA/a4DeEH/JolGvjt4w70i5L2ZvvrA+lqOmxcr/ib3v ii4b9cFFFqJs7GTx1jJ/4eevBEsJUqyL5AVkAxXOaDgakG1uSPihBBHFZSEhQSZYC zC62WaDdQp7G0L76IA== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from [192.168.178.21] ([94.31.85.95]) by smtp.web.de (mrweb105 [213.165.67.124]) with ESMTPSA (Nemesis) id 1M28WJ-1rullX0mPx-002YIA; Tue, 16 Apr 2024 14:14:30 +0200 Message-ID: <33a38d7e-26da-46e0-90d4-7137f9ec0c90@web.de> Date: Tue, 16 Apr 2024 14:14:27 +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: [0/2] powerpc/powernv/vas: Adjustments for two function implementations To: Christophe Leroy , Michael Ellerman , "linuxppc-dev@lists.ozlabs.org" , "kernel-janitors@vger.kernel.org" , "Aneesh Kumar K.V" , "Naveen N. Rao" , Nicholas Piggin Cc: LKML , cocci@inria.fr References: <7be66990-de9e-488b-ad6d-fafd1c7bb34c@web.de> <87plupbm0c.fsf@mail.lhotse> <795ca003-4231-45c0-8bb6-178597950fa5@csgroup.eu> Content-Language: en-GB From: Markus Elfring In-Reply-To: <795ca003-4231-45c0-8bb6-178597950fa5@csgroup.eu> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:hsxChQyFzhPEKKvYCyvy7NgsHW1pjrvs8WruIhj+JKDV7dHWRe0 I4b/QJ8s8AXfyqEPsqrF3pGy3hn/sZ+YDLWr95BvPAPEz1iabte7Xs9qjteD3zPuY3bU47F XW9ujYjwb5Ccas8EWQ2MHwVzl/UnDEYgne3L/Wx1VhSNyLAeOQUpOI803P39hx1YTXPc2OO IuN9VbCGqj8aIop4FE3tg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:cgnuqKGvJbs=;A9nNALScgBDWwff956u51qJ3ddr IwHS8JlxBuV4T5W7RhoUOEBY/k5hzh1H36Nvz681MqMc/Bt7X4y7ROd7hwnkWwz1GlenSxin8 rETv+oYf/jAVXATFkGSiM92DXMC5jKaPJDdnc0QAL2QhOyJ4YyiWehUfXE5guZ/cgkGjgX62U k2ythW+58+lwecDDVYYL5+PxUsPJiLU8Zs5Zh2aJQB+jzsF8gFdbRgVrCh1hWfuEtEbQTTTXe JdDTK7oPYgUHPa6WhdQRG8Mjdqft1ZSR+gQRdIU7wBLI7uSaS/R1fXVPh27xpU5B6PwusfQlL GPjqUv0xkIuEfnYb3RJJTOqrc8WMxp4DuEAICG+MWlz5U5EwjDl2B050SoMaa0BOZkPybV62K VUW1aGirQj9Bh7Tak4lhDw4vZwwG6swjpetwTsa29/9P0vBZTjJ7EWQPtS8GYg06RjMX6SJIi 3H1arPp0IZvpSMBLt47D6xzFpq6/aJoa3ZZ2vk2BYTkrdnaFJOvU5tN7WUhAJiBbEh0RF7lou V4ABevcKcEDkD60OQyW2eLpJL/TuyJ9SFhi4vI7Ftw0gFCjuEmysuw2F/Mfol0zQFpxj4MhOV Sbo17qHtgKSZLewLIVsCDPO6VoWmmiLmtQBBKYNZ9/D0RnhX1FKcow29VoZYkecg592P92F3K Z6JJ6m/oZ7MGneIspDw8jSKSET8DNH2aJ1fwn/wHTewvizMNI/t3QfTLaIzZgJkds+wyBERZp 0AuiMSAbgoWWuxOhLSIzt0mvHFE5rX4rCBoBA/rrFgZH6pk+/OJBcSySbwGc3zk4nSkmL1IbS vEVhAV0RbpMZDjzbF3ZDBuM5HgpXM1v0IzO0IG189sfSc= > This is explicit in Kernel documentation: > > /** > * kfree - free previously allocated memory > * @object: pointer returned by kmalloc() or kmem_cache_alloc() > * > * If @object is NULL, no operation is performed. > */ > > That's exactly the same behaviour as free() in libc. > > So Coccinelle should be fixed if it reports an error for that. Redundant function calls can occasionally be avoided accordingly, can't they? Regards, Markus