From patchwork Mon Mar 28 19:59:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Dufresne X-Patchwork-Id: 12794182 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 604C7C433EF for ; Mon, 28 Mar 2022 20:00:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344250AbiC1UCB (ORCPT ); Mon, 28 Mar 2022 16:02:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344213AbiC1UBz (ORCPT ); Mon, 28 Mar 2022 16:01:55 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AACA33A1BE; Mon, 28 Mar 2022 13:00:03 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: nicolas) with ESMTPSA id BF52A1F43867 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1648497602; bh=HlQF5QYc2YwGYm21E6HNcjkx9wicYLtIvyiKegTR5UM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X2V9/AoW0YdfJtrSr0L83RDfv81sqKRWMuoCG6uFzKhVuId0g7jU0+lCWSjHFtvDt 3wzVTlRR05iMdPpkcowX+LYBbNam7WzQ+LjM+8QGAw3nbqf7wKLL0e07ceJvgMJf8Q eUc16uV2Y1opzL3MKU8z58oj3mCfhCEim9J5lGrNfg/RMhRCqtGj/VNrk/HoAaSjd4 ubhJ7Em0sfWafUoDLriWEgwNCCu8FDfDe8huEPeMlqjkMZoJQDHtxdXJICTgNGcHx+ LsUrjfRvKShqcJhGpE4QJwQg2uUzK/0wKDS0MOB5vJuXDR82STUSF0egw3UDQfcdo0 u5NxEVnZZY4DQ== From: Nicolas Dufresne To: Mauro Carvalho Chehab Cc: kernel@collabora.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 10/24] media: v4l2-mem2mem: Trace on implicit un-hold Date: Mon, 28 Mar 2022 15:59:22 -0400 Message-Id: <20220328195936.82552-11-nicolas.dufresne@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220328195936.82552-1-nicolas.dufresne@collabora.com> References: <20220328195936.82552-1-nicolas.dufresne@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org If the timestamp of the src buffer differs from the timestamp of a held dst buffer, the held buffer is implicitly removed and marked as done. Add a trace to help debugging if someone hits that case. Signed-off-by: Nicolas Dufresne Reviewed-by: Sebastian Fricke --- drivers/media/v4l2-core/v4l2-mem2mem.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index 53c2332d5cbd..d3e739ef16ef 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -336,6 +336,7 @@ static void __v4l2_m2m_try_queue(struct v4l2_m2m_dev *m2m_dev, if (src && dst && dst->is_held && dst->vb2_buf.copied_timestamp && dst->vb2_buf.timestamp != src->vb2_buf.timestamp) { + dprintk("src and dst timestamp mismatch, removing held capture buffer.\n"); dst->is_held = false; v4l2_m2m_dst_buf_remove(m2m_ctx); v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);