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 080A538398; Wed, 21 Feb 2024 13:49:57 +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=1708523398; cv=none; b=oUZqZV/PmFqZbjhf8kCieLCXNfr40Q+rFmsX4n/MwpSfxkCPvVj+0/1qOXrHoEjWZzERkrah30cvNSM802GLDOx18T9GUhvDirb5lEVcZwlCPyVLmKDYSIVFvb0CMzK6Gn6JNoNcn5WZ18DJ592nE2sGzV8e7q7SzRx2l+80Jrw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708523398; c=relaxed/simple; bh=4kfxg9u0mQtEKwHMp1iKGwwqUMySkrUPQgr4CfJuJNI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kW3WEA+FD+SwhYb0RDfPiPuzRFJLZJ4hhqGJoP5aBp3OLePlkVdfxiGH3c+P3D8LhZYYuyBBYIiXcHkyppzNU+gtONJNkJfiphvQMkL6J6U0c98sAEqhUgYZrW/S6gAfUdS+oHyg3wUmphlH//N7fX6QqCwsNACrGoCRgilrn4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ecioJE7n; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ecioJE7n" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3ED34C433F1; Wed, 21 Feb 2024 13:49:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708523397; bh=4kfxg9u0mQtEKwHMp1iKGwwqUMySkrUPQgr4CfJuJNI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ecioJE7n/vUFUOOfbesr7A5n+gFk6LNhC4CyNdNqveyx1MmMqOg4Wl85VEw87DIis a1EFtKyAvTi5m/izExEdVMc8ii5q9rAS9mAvHCXuytRgT1YCKug8dIV/evLvUScdUT 1Wm8DBFF1KRRmHTtMZfgzhuC4kLM/ba4q1cUo6ZY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Philip Yang , Felix Kuehling , =?UTF-8?q?Christian=20K=C3=B6nig?= Subject: [PATCH 5.15 396/476] drm/prime: Support page array >= 4GB Date: Wed, 21 Feb 2024 14:07:27 +0100 Message-ID: <20240221130022.647455657@linuxfoundation.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221130007.738356493@linuxfoundation.org> References: <20240221130007.738356493@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Philip Yang commit b671cd3d456315f63171a670769356a196cf7fd0 upstream. Without unsigned long typecast, the size is passed in as zero if page array size >= 4GB, nr_pages >= 0x100000, then sg list converted will have the first and the last chunk lost. Signed-off-by: Philip Yang Acked-by: Felix Kuehling Reviewed-by: Christian König CC: stable@vger.kernel.org Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20230821200201.24685-1-Philip.Yang@amd.com Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/drm_prime.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -825,7 +825,7 @@ struct sg_table *drm_prime_pages_to_sg(s if (max_segment == 0) max_segment = UINT_MAX; err = sg_alloc_table_from_pages_segment(sg, pages, nr_pages, 0, - nr_pages << PAGE_SHIFT, + (unsigned long)nr_pages << PAGE_SHIFT, max_segment, GFP_KERNEL); if (err) { kfree(sg);