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(unknown [IPv6:2a01:e0a:120:3210:c562:2ef4:80c0:92f]) (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 F311666073B6; Tue, 31 Oct 2023 16:32:16 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1698769937; bh=Cxne9UW1Rdv3DqE7yxtW6lkbxfpON9tV+mkocfttCkg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ibBGN8Bae+pP6U4s2NEEt1GhmGXLPJHYZds8+XgsYyuh+B+/RNXZpHcKH35eWZ+mW 9FPGubhRKV5J7DawvFR16fVUG2k5ZIGhRwg4liZIrpcDDb7cEJFpt6qF+m3kcrFsoB jsUbmu1HtPwZONE/xdGQKTzaJLs5M1/E3+VgdTfrbT+7Cy0emGwEJ499C8N5btXj7q nyd3ruy3L9NjkE4tKB7yqXCJbwnMKrjqeoHnfsDCvSIyDervf/Hts5r8sJ1g5IZGJ6 yM9fqCihqm4Mw7k+V4VEy7RZdI71Ze8z1QcY4ingdkl7+Rp6JTtAWYa4Jp36xiZjwE TlvPtSrMa4qfw== 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 v14 34/56] sample: v4l: Stop direct calls to queue num_buffers field Date: Tue, 31 Oct 2023 17:30:42 +0100 Message-Id: <20231031163104.112469-35-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231031163104.112469-1-benjamin.gaignard@collabora.com> References: <20231031163104.112469-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Tue, 31 Oct 2023 09:34:48 -0700 (PDT) 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 --- samples/v4l/v4l2-pci-skeleton.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/samples/v4l/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c index a61f94db18d9..a65aa9d1e9da 100644 --- a/samples/v4l/v4l2-pci-skeleton.c +++ b/samples/v4l/v4l2-pci-skeleton.c @@ -155,6 +155,7 @@ static int queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct skeleton *skel = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); skel->field = skel->format.field; if (skel->field == V4L2_FIELD_ALTERNATE) { @@ -167,8 +168,8 @@ static int queue_setup(struct vb2_queue *vq, skel->field = V4L2_FIELD_TOP; } - if (vq->num_buffers + *nbuffers < 3) - *nbuffers = 3 - vq->num_buffers; + if (q_num_bufs + *nbuffers < 3) + *nbuffers = 3 - q_num_bufs; if (*nplanes) return sizes[0] < skel->format.sizeimage ? -EINVAL : 0; -- 2.39.2