From patchwork Wed Apr 21 10:00:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 12215817 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E08F1C433ED for ; Wed, 21 Apr 2021 10:00:52 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9758861440 for ; Wed, 21 Apr 2021 10:00:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9758861440 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:MIME-Version:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:Cc:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=IeGtrXBCyZCXkE+9KKYMC41P0XvqtdGiSHuyq0jLlMY=; b=cMN6rKZTAahRrqqdUe91b2YyKV L9LraqWGOGOiTF2F6aX/ackL18vkiGJxX0Wav3shkHL1ZuLLcNQlLWVv++wT5u/Di/Cktv1VaTzBu wagDFrFbG5G3ygBbAJLQINtb34+LkgI/if2hpXD6kPggXnrBepsV0DnE+xwhvKCrok42bshZ0d46E KewfGovIQ84JW8pX0gdE3kueFj8iBMGw87eZkIjO+1+CTlqLVxZfcXKBK/ikddXBTO53rP1vJII6n W09BOOeRS+p2EoCukoweoHtpb8VjFLU4o3h/nppcdihHTLqrOZzdTNQR8ojbvI+QJp0egAMYPY12p fZltgSYQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lZ9f6-00EBsw-AD; Wed, 21 Apr 2021 10:00:48 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lZ9f4-00EBsW-G9 for linux-rockchip@desiato.infradead.org; Wed, 21 Apr 2021 10:00:46 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description; bh=8Atswxg1mkGEgJUO2I63P0nvRQOpftmze1xISi0APJc=; b=kdq7ogrVSBA4vciWvG6HzV/lv7 +J6mCVEonQUNSyHJv4RlH1Z79fgXEVwHA4JthIQvCyc6YYazUHbwv5Ie1XEc3i9MSQjzQYAOQbxGf QvKEBqn1eiaOta4B87NclP5hmxBo9CErznXkCwtsHlzt14ssMGZsTUdArJeg064ki9qwoJ0Mq+imy +ujr9c7BtDoPFLE7dvOcvQdlHLPoIKidIxO8Dyaq2UgNQizeuI7zLyERHvxJbH3GWpeEpm2823oRg 6lFo/raRRt16QqnIL3YMv3/bZS3i8gu6zyqU3Esr4zr3ddzKOL4ZZOERqRTU2xfoMnqlmAgII99Lg B/2tirfg==; Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lZ9f1-00CmjQ-Vu for linux-rockchip@lists.infradead.org; Wed, 21 Apr 2021 10:00:45 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id 68C6E1F42D4A From: Andrzej Pietrasiewicz To: linux-media@vger.kernel.org Cc: linux-rockchip@lists.infradead.org, devel@driverdev.osuosl.org, Mauro Carvalho Chehab , Ezequiel Garcia , Greg Kroah-Hartman , Andrzej Pietrasiewicz , kernel@collabora.com, Adrian Ratiu Subject: [RFC RESEND 1/3] media: rkvdec: Fix .buf_prepare Date: Wed, 21 Apr 2021 12:00:33 +0200 Message-Id: <20210421100035.13571-2-andrzej.p@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210421100035.13571-1-andrzej.p@collabora.com> References: <20210421100035.13571-1-andrzej.p@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210421_030044_159114_4DF6AA25 X-CRM114-Status: GOOD ( 11.89 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Ezequiel Garcia The driver should only set the payload on .buf_prepare if the buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused set by userspace then v4l2-core will set it to buffer length. Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver") Signed-off-by: Ezequiel Garcia Signed-off-by: Adrian Ratiu Signed-off-by: Andrzej Pietrasiewicz --- drivers/staging/media/rkvdec/rkvdec.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c index d821661d30f3..ef2166043127 100644 --- a/drivers/staging/media/rkvdec/rkvdec.c +++ b/drivers/staging/media/rkvdec/rkvdec.c @@ -481,7 +481,15 @@ static int rkvdec_buf_prepare(struct vb2_buffer *vb) if (vb2_plane_size(vb, i) < sizeimage) return -EINVAL; } - vb2_set_plane_payload(vb, 0, f->fmt.pix_mp.plane_fmt[0].sizeimage); + + /* + * Buffer bytesused is written by driver for CAPTURE buffers. + * (if userspace passes 0 bytesused for OUTPUT buffers, v4l2-core sets + * it to buffer length). + */ + if (!V4L2_TYPE_IS_OUTPUT(vq->type)) + vb2_set_plane_payload(vb, 0, f->fmt.pix_mp.plane_fmt[0].sizeimage); + return 0; }