From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.17.11]) (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 9EEA012CD8E; Tue, 16 Apr 2024 14:05:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713276346; cv=none; b=AXj6+yPFvBdCz6Bs6S6plVJDU3PriQVY6mrHCxoJf22qFMSzaa40330MCoW2aZUD2VgbOCDesUz8TXUHuKzWjRm9Zwg5ePuIbFWmTdXiZNbWFx0p+J9n0fCPoSoni1ZKjxuCQA0FKmxP+BQX5Q2ZyZHdqr0pUfRITjrlj0GA8X0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713276346; c=relaxed/simple; bh=ICGpHm/MlVMTN5tT+yT0ALzoCJj/Nv+iChNyAF6Crfg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=d0zeLrz7sYwAgFaliwKn242b5UXZCGg+8zu3QIOlOhOh+mTR3mj4tLGXUrMzDQ+AOt8IM2KG7Bz9w8ziGB+1ljve8g03pY/UuJP4ruCYFSoNHiJKVPvm33L5i9xrPnLkzQYo+Y76rvD82yfNw2QNVpbvUDsgL+S27oQFD0B2uAk= 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=BV+rQywq; arc=none smtp.client-ip=212.227.17.11 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="BV+rQywq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1713276319; x=1713881119; i=markus.elfring@web.de; bh=ICGpHm/MlVMTN5tT+yT0ALzoCJj/Nv+iChNyAF6Crfg=; 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=BV+rQywqAIdxBH0umDEn8bvGjPmvmzSqAzrxbTbKpM3uXumbe6gcX7CTQWSP5t56 1YTSUpLCG0Qkdr5GcTCA8zLZjfpbU6p4mrszRpAZvRYSM9VOYa6+aaGMthQCEfzq1 koDp5MNSqr1caICyB/lrzzdxDhdd6AJ66FSmF9Sah7Ukq0q7UR81HR0MRBd8WNzEo gIMMx8Kym/SaK6vj41JHkIPZEe3fEg9mr9PWEQUO6ZymdHSNcktb0sNgMLO2yy5v4 RT5Wsby/gtVRlr/I9x7umdiBOZyMHWo/x4B5pcT0C+O7S02wDDOY0ze6WRgX8a/UW Gd/U5HLtEwtpoYY2xQ== 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 1MTOha-1sJwDz34d2-00Tmq6; Tue, 16 Apr 2024 16:05:19 +0200 Message-ID: Date: Tue, 16 Apr 2024 16:05:17 +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 map_paste_region()? 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:ORHzTV9JjHAw4zTbjE/EZ77vq6Kp7tJZyO1LnF5YwH3Wm4B8mFK 9CDJOEyKMNgNsdIz/BIs81MLc1apFVK4NmG3Y3ATeJNBaNil7jjERn3Fa5wqGOqCl1KyLRz 1VhgPaKUTJApamxerdglA5aKQf9MO0QMuQ4vq3mqg8TxdzwYK6lbYLIy5HkG2L7U1m1IqfH DufMlLVpDYZJHAnW7MGgA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:8bmhXE821EU=;0UoJ/5dv4u3lZzMfraFWbbkbMm4 yeLO+yOeHL8YDFVOoNZgpij7RieJG+s7gkXK8aVZl/ACsMiPzoWF6m9Q6p4yZIYALncj1ACJr b/jCDP5O7arA/0kWG1R9vkkk+gJJgnU4PdAAtF05ygVx2jVuAFLupnLWpWIs0Pz3Ao1rSp8kK +dhuc3Avvp3hGe0AVp8cWXSPE7MOs7Ena1oB+RQuqcVNmNOHGhfMb1l1FVxNr7wya02Cqyb7+ tHblnwm2E4tKis7qlwrWw/ykWxA7kK2DdLkFBMSKdI47fVaVe1HQ0Q4QUxSmPEHmkfmsCEEiV rARvo0HpbOeLpB0vDIICHwyNXizQosGq7K6VTECIL6CWWqgfs2CAVnWbDkJyA+SYscuxwqZmp khLfnIKB47aF5iKpcA0/QKUv7cD1L+m6khtXn+2Ku0A6pAiiabNBg6u7DpevsGtIrwtJsnayT X0EN0pXxEKg9zWZUXbKEDtD+N5WszzdTahq3di3KRZM6xyO4XTJrzb2MGzQpFzLJuR3VT8MqS k7kOszx53xL+KRmWWHPShcZCA+CXucKeJ45bPcQmmYIOgN4Lrb8nG06tr/CJj0W+4sn2HJt7m Lb6LxrVFzUuEMV6X8npgq3XiT+TpFx81Ub+gGIW1hRtRuorQ6s4vcrYGM8bvDb5jaDcVnCOb0 82Gpb0XwbudgMefEwunIqKhZhjhCN4CAHXStzYnZbDVjrlTD67B1YnQC8bQM8wsxBNKJ58Orm S4/VaoolUyjHNln2SBzYY905yLLKLXGztuakPb0Oe82JLKIADcaOrKFiA7AQhBHJ6Zp9ZCmS9 f0GMV4Ue3Od0b5P/OxGxRmcyWbD9US4g/kmJvGmMjsI5E= > Looking at that function, I however see a missing region release when > ioremap_cache() fails. Under which circumstances will the exception handling be completed also fo= r the implementation of the function =E2=80=9Cmap_paste_region=E2=80=9D? https://elixir.bootlin.com/linux/v6.9-rc4/source/arch/powerpc/platforms/po= wernv/vas-window.c#L67 Regards, Markus