linux-kernel - [PATCH] media: platform: rga: fix 32-bit DMA limitation

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Message-ID: <20240812143555.530279-1-jkeeping@inmusicbrands.com>
Date: Mon, 12 Aug 2024 15:35:55 +0100
From: John Keeping <jkeeping@...usicbrands.com>
To: linux-media@...r.kernel.org
Cc: John Keeping <jkeeping@...usicbrands.com>,
	Jacob Chen <jacob-chen@...wrt.com>,
	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Hans Verkuil <hverkuil-cisco@...all.nl>,
	Michael Tretter <m.tretter@...gutronix.de>,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] media: platform: rga: fix 32-bit DMA limitation

The destination buffer flags are assigned twice but source is not set in
what looks like a copy+paste mistake.  Assign the source queue flags so
the 32-bit DMA limitation is handled consistently.

Fixes: ec9ef8dda2a24 ("media: rockchip: rga: set dma mask to 32 bits")
Signed-off-by: John Keeping <jkeeping@...usicbrands.com>
---
 drivers/media/platform/rockchip/rga/rga.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 0e768f3e9edab..de532b7ecd74c 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -102,7 +102,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
 	src_vq->drv_priv = ctx;
 	src_vq->ops = &rga_qops;
 	src_vq->mem_ops = &vb2_dma_sg_memops;
-	dst_vq->gfp_flags = __GFP_DMA32;
+	src_vq->gfp_flags = __GFP_DMA32;
 	src_vq->buf_struct_size = sizeof(struct rga_vb_buffer);
 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 	src_vq->lock = &ctx->rga->mutex;
-- 
2.46.0