From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=172.234.252.31 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793719142; b=lY3mpz/IjY25SxbK9Xi9ZCw48Kd6zRy8I8Yq7g1pTutnAok97t0nUW+hml1XRcFUFqfL WGSXMsceX90HIGrXEKVeq5mT64Jgh8ij/VfAX73yz2QLRm00rxervAkQ/CxxlkhADZ05S trcQ4sCoNv2/tDV9M9XUQ3dLe8b8twRaFKpMfMe0a27FbEJHTbyG0+ZwpW4W9GbLdwUpk LM4Zhmjgh9jfTxsMDua1ivnmhay+qzYdz6M/LYo+jTHL1MmuUXFD3FiOVavT7H0qALY4/ Nu80caMSWbI2wCjikgUtx8DYXcHHeK8jbin/5DNylqmEUDT5nhePiUpy2/Nw2LB2U6Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793719142; h=DMARC-Filter:Received:Received:DKIM-Signature:Message-ID:From: Subject:Reply-To:To:Cc:In-Reply-To:References:Content-Type: Content-Transfer-Encoding:Date; bh=odwwA5dfKcUGiw60p2ABSqsoXHD3TJfwohDjWQjtLjY=; b=bmEIbLPjD1tbB/BQzZxdsCgCp4ToRxytN2af9T+XC4bCMHb/N0iLSPkcnQ639NNj/l6w P/pKGRCAA4c2NcTaLuYhqJYrt7QdMnXhVhzQ2VxN4w4kae4WEtPjx3K/1ow2wUUepRpqF E27ZUU8wGMr1ANeHLnz67d+uDOE1HyXgOWMgCzGMLPnYPLDIF+fF7E+wH7sOvR7wGdzY3 2vvCyW2si32/jegSmw525Cr6E8PljUuNrulcvkRdCMEyC74X8gal/K07o3NmUU9idhWLK ZcK4rgapW/N5YGSxgRTlNP542uObW33ouyfN/xZCQPZAtwUXIRam8+IUepBJP6CLCUg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=kernel.org; spf=pass smtp.mailfrom=kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jROEVxEx; arc=none smtp.remote-ip=172.234.252.31 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F1BB760A2616 for ; Tue, 3 Nov 2026 15:19:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org F1BB760A2616 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jROEVxEx Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id BA6AB43FBA; Tue, 3 Nov 2026 15:19:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D56581F00A16; Tue, 3 Nov 2026 15:18:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793719141; bh=odwwA5dfKcUGiw60p2ABSqsoXHD3TJfwohDjWQjtLjY=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=jROEVxExIThFpbsqA5xAGqUr9cswA8n2qHqo/aORqRE3FqTOEu/Om15ERmPiYGlIu 7g8q1aer7mGKtPa4BqJW1SZkElmqfbsX5POPH2ZXnXV8g7aCzKJTWAAN/zeDNaVUwi kOyemUyjCavVCYeryJNauavuuGZorazBlwZhrNEkZ71VuyzAeAKZS7rSdw1kZNZ28p oTmkBcf0kJ37lxjbSjKNMU9ItQ3w+BlCooP4cmHM0J5+lHMYE5pCxdn7eLYdpg+45U WKo06U7ovfEEyFZ2fAApo+ge7BawSBRBymU5M7v3K7NHSLfSZkLVc/EQaw+9hkcs1y +QDI9KvU2B7Jg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC 16/23] fbdev: viafb: let procfs copy in writes Reply-To: sashiko-reviews@lists.linux.dev To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-ext4@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261102-work-procfs-drivers-v1-16-a994bd4d3b1a@kernel.org> References: <20261102-work-procfs-drivers-v1-0-a994bd4d3b1a@kernel.org> <20261102-work-procfs-drivers-v1-16-a994bd4d3b1a@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 03 Nov 2026 15:18:59 +0000 X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Implement ->proc_write_buf() for the files in /proc/viafb so procfs > copies in what is written before it pins the entry, and parse what was > written from that copy. Writes larger than PAGE_SIZE - 1 bytes fail with > -EINVAL now, the output device files refused anything over 63 bytes > already. kstrtou8_from_user() looked at the first 10 bytes of what was > written to dfph and dfpl, now the whole write is parsed. >=20 > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261102-work-procf= s-drivers-v1-0-a994bd4d3b1a@kernel.org?part=3D16