From patchwork Tue Oct 3 08:06:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13407219 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E7E2E75433 for ; Tue, 3 Oct 2023 08:09:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qTuPHPU4Io44nAdkQT6nBOAqUL8jchiAXtKAUc5aY3c=; b=H/mgNuJey0JrmQ+sBFEGrrDIeY uzzoh1CzFNSkL4Tljqd7uCk7YiJPOXEjTjcPzQZ8vw+6fHH/v8J9C2Jym0FPN3ZaflhDIE4Ms2lPl SEDkuxR/x4ThDVImahSeITkorTLjwITrQHSN/pMd2Zmt2YN60ea+xkzXBw4sbwxANI1KjexmgfNa4 kJvnOqUkJbsefUQ+LqGbBbcXXuklGhSUsUHJj1qwklgrYV4qiO4ZYokD86wN6wraJPbpkuGfeqDig xBPI5owvHRo8JCmG5ZphRoO8a4rX1uYs2vS6eFOLDeO8DAvCV0NB6wNobzhmYM6bYGGZ8w+yyHweo 9knA2MSA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qnaTV-00E644-34; Tue, 03 Oct 2023 08:09:49 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qnaRM-00E3PB-0Z; Tue, 03 Oct 2023 08:07:40 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:b6df:b784:6a0f:8451]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 476FD660737E; Tue, 3 Oct 2023 09:07:34 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1696320454; bh=nwepyznt8z6pxABzkpFHR6clGV59kYVToyX8aj6cN+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KnnXCWtdllxU0DZMzzl8fzfEhbINPZZ/1/qStYUhK+64H4TVNwrNaNjNIhxLenM4y T5oTB8rImornc1k7g+Aa7oYLBOKapEiLJ163Tytr9r8P63uQAWm1LnP/EmoMxzdZlB F20gY/g6bsnpgewMb7z89Xxu/LA9fS6SG/NexwCK4sOHhxBgpoaD9baHBJKYDX6C9E L9lz0WUCsVxzX9epta9uooCYqnE3g3+Gk8egnveVyePCFj43lIQ25VRgl7s5RMAL4o oJJNafBHbp1d8v3w4AQ++aa2V/fHHFdLSogLnvOE5Kq8VurHTpa04W7VjzTieIwhRG HyxISeXk0z+KA== From: Benjamin Gaignard To: mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v10 41/54] media: usb: usbtv: Set min_buffers_needed to 2 Date: Tue, 3 Oct 2023 10:06:50 +0200 Message-Id: <20231003080704.43911-42-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231003080704.43911-1-benjamin.gaignard@collabora.com> References: <20231003080704.43911-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231003_010736_373634_F8FF2FB0 X-CRM114-Status: GOOD ( 11.01 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org vb2 queue_setup checks for a minimum number of buffers so set min_buffers_needed to 2 and remove the useless check in usbtv_queue_setup(). Signed-off-by: Benjamin Gaignard --- drivers/media/usb/usbtv/usbtv-video.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/usb/usbtv/usbtv-video.c b/drivers/media/usb/usbtv/usbtv-video.c index 1e30e05953dc..0e9e860be47f 100644 --- a/drivers/media/usb/usbtv/usbtv-video.c +++ b/drivers/media/usb/usbtv/usbtv-video.c @@ -727,8 +727,6 @@ static int usbtv_queue_setup(struct vb2_queue *vq, struct usbtv *usbtv = vb2_get_drv_priv(vq); unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32); - if (vq->num_buffers + *nbuffers < 2) - *nbuffers = 2 - vq->num_buffers; if (*nplanes) return sizes[0] < size ? -EINVAL : 0; *nplanes = 1; @@ -892,6 +890,7 @@ int usbtv_video_init(struct usbtv *usbtv) /* videobuf2 structure */ usbtv->vb2q.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; usbtv->vb2q.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + usbtv->vb2q.min_buffers_needed = 2; usbtv->vb2q.drv_priv = usbtv; usbtv->vb2q.buf_struct_size = sizeof(struct usbtv_buf); usbtv->vb2q.ops = &usbtv_vb2_ops;