linux-kernel - [PATCH 4/7] media: cedrus: Remove dst

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 30 May 2019 23:15:13 +0200
From:   Jernej Skrabec <jernej.skrabec@...l.net>
To:     paul.kocialkowski@...tlin.com, maxime.ripard@...tlin.com
Cc:     wens@...e.org, mchehab@...nel.org, gregkh@...uxfoundation.org,
        linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/7] media: cedrus: Remove dst_bufs from context

This array is just duplicated capture buffer queue. Remove it and adjust
code to look into capture buffer queue instead.

Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
---
 drivers/staging/media/sunxi/cedrus/cedrus.h   |  4 +---
 .../staging/media/sunxi/cedrus/cedrus_h264.c  |  4 ++--
 .../staging/media/sunxi/cedrus/cedrus_video.c | 22 -------------------
 3 files changed, 3 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 3f476d0fd981..d8e6777e5e27 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -100,8 +100,6 @@ struct cedrus_ctx {
 	struct v4l2_ctrl_handler	hdl;
 	struct v4l2_ctrl		**ctrls;
 
-	struct vb2_buffer		*dst_bufs[VIDEO_MAX_FRAME];
-
 	union {
 		struct {
 			void		*mv_col_buf;
@@ -187,7 +185,7 @@ static inline dma_addr_t cedrus_dst_buf_addr(struct cedrus_ctx *ctx,
 	if (index < 0)
 		return 0;
 
-	buf = ctx->dst_bufs[index];
+	buf = ctx->fh.m2m_ctx->cap_q_ctx.q.bufs[index];
 	return buf ? cedrus_buf_addr(buf, &ctx->dst_fmt, plane) : 0;
 }
 
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index d0ee3f90ff46..b2290f98d81a 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -119,7 +119,7 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
 		if (buf_idx < 0)
 			continue;
 
-		cedrus_buf = vb2_to_cedrus_buffer(ctx->dst_bufs[buf_idx]);
+		cedrus_buf = vb2_to_cedrus_buffer(cap_q->bufs[buf_idx]);
 		position = cedrus_buf->codec.h264.position;
 		used_dpbs |= BIT(position);
 
@@ -194,7 +194,7 @@ static void _cedrus_write_ref_list(struct cedrus_ctx *ctx,
 		if (buf_idx < 0)
 			continue;
 
-		ref_buf = to_vb2_v4l2_buffer(ctx->dst_bufs[buf_idx]);
+		ref_buf = to_vb2_v4l2_buffer(cap_q->bufs[buf_idx]);
 		cedrus_buf = vb2_v4l2_to_cedrus_buffer(ref_buf);
 		position = cedrus_buf->codec.h264.position;
 
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index e2b530b1a956..681dfe3367a6 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -411,26 +411,6 @@ static void cedrus_queue_cleanup(struct vb2_queue *vq, u32 state)
 	}
 }
 
-static int cedrus_buf_init(struct vb2_buffer *vb)
-{
-	struct vb2_queue *vq = vb->vb2_queue;
-	struct cedrus_ctx *ctx = vb2_get_drv_priv(vq);
-
-	if (!V4L2_TYPE_IS_OUTPUT(vq->type))
-		ctx->dst_bufs[vb->index] = vb;
-
-	return 0;
-}
-
-static void cedrus_buf_cleanup(struct vb2_buffer *vb)
-{
-	struct vb2_queue *vq = vb->vb2_queue;
-	struct cedrus_ctx *ctx = vb2_get_drv_priv(vq);
-
-	if (!V4L2_TYPE_IS_OUTPUT(vq->type))
-		ctx->dst_bufs[vb->index] = NULL;
-}
-
 static int cedrus_buf_out_validate(struct vb2_buffer *vb)
 {
 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
@@ -517,8 +497,6 @@ static void cedrus_buf_request_complete(struct vb2_buffer *vb)
 static struct vb2_ops cedrus_qops = {
 	.queue_setup		= cedrus_queue_setup,
 	.buf_prepare		= cedrus_buf_prepare,
-	.buf_init		= cedrus_buf_init,
-	.buf_cleanup		= cedrus_buf_cleanup,
 	.buf_queue		= cedrus_buf_queue,
 	.buf_out_validate	= cedrus_buf_out_validate,
 	.buf_request_complete	= cedrus_buf_request_complete,
-- 
2.21.0