From patchwork Thu Nov 9 16:34:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13451407 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 3C165C4167D for ; Thu, 9 Nov 2023 16:38:30 +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=1/+Lxkbxkr5wpS+uB7VMCTDQQAUTF0dKru7u1Lg24vU=; b=41gJMTw61EIZq6Bbed1RTMqEKN YHZQWHoeRXYaJqMNQ0wo8DWodZa4HU0gsY+npsnE2eNHoJGjhmM5U8s7UG6FdqNcY5t7dDFH/KYK6 b2m0VTbTlZ/a0TYBzD1xBTZqnF1GIqRd1gK0GW3k2/tM2wuEvzA2DKSOvXvf10Qa6HsXmMnpFwmv7 QYZ4/75TF0xz6FrJ1FWxqi/xtDqYCHpB6H5m4f5jyKhEFbp+MU4RDm1FWIiPfK2u0jvKZfSLWtdgC U+MXdG+VdER4vhhhA6sAKuh+2izR848G+DF+oVf78VzOf7Y547lC0wx4rsFxMq6o0QQ6MuYSmhBeS yMEdV2jw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r1832-006lr1-1b; Thu, 09 Nov 2023 16:38:28 +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 1r182U-006lBh-1H; Thu, 09 Nov 2023 16:37:55 +0000 Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (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 414F666076A9; Thu, 9 Nov 2023 16:37:52 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1699547873; bh=tH0dDZoY7AzlQtbTMci7rFl4joXADXoUOtykCWAO0ag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C2Z3fvqBe7KzpKhhXolyZoXKhY8XlKdqkwyaHfS4j7hR0A+KSc3wqDK00rvTk1QlQ DlNaoCYh0e0KuZrEFnIIPt1wxg/PJ/JhzIHpKTaA74980sRTyRI5TpHLqizYVX8BIZ Ro31Ec6rZE7u6i4/VPruIg8rEe/gc2xycCNvAJgSAR9/2mK9lYjpQzwofp9+7WUDNx 3YH/e0E4vdI6R+/vaOg6h7pnl7NeuIQOcuIPswD95elNNWL+FpR+9VyDYxf9TJ4z+W SOAqsDyN20SJ3l4V2GnTuzra5nVRwaNMMbkfb3dOb23Kpg+OchP6RWnTmllC6zrZPX Zt3lCj0D2lwWQ== 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 , Andrzej Pietrasiewicz Subject: [PATCH v15 22/56] media: pci: tw686x: Stop direct calls to queue num_buffers field Date: Thu, 9 Nov 2023 17:34:38 +0100 Message-Id: <20231109163512.179524-23-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231109163512.179524-14-benjamin.gaignard@collabora.com> References: <20231109163512.179524-14-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231109_083754_576340_AA1C757B X-CRM114-Status: GOOD ( 12.63 ) 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 Use vb2_get_num_buffers() to avoid using queue num_buffers field directly. This allows us to change how the number of buffers is computed in the future. Signed-off-by: Benjamin Gaignard Reviewed-by: Andrzej Pietrasiewicz CC: Ezequiel Garcia --- drivers/media/pci/tw686x/tw686x-video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c index 3ebf7a2c95f0..6bc6d143d18c 100644 --- a/drivers/media/pci/tw686x/tw686x-video.c +++ b/drivers/media/pci/tw686x/tw686x-video.c @@ -423,6 +423,7 @@ static int tw686x_queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct tw686x_video_channel *vc = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); unsigned int szimage = (vc->width * vc->height * vc->format->depth) >> 3; @@ -430,8 +431,8 @@ static int tw686x_queue_setup(struct vb2_queue *vq, * Let's request at least three buffers: two for the * DMA engine and one for userspace. */ - if (vq->num_buffers + *nbuffers < 3) - *nbuffers = 3 - vq->num_buffers; + if (q_num_bufs + *nbuffers < 3) + *nbuffers = 3 - q_num_bufs; if (*nplanes) { if (*nplanes != 1 || sizes[0] < szimage)