linux-kernel - [PATCH v4,1/4] media: mediatek: vcodec: Avoid unneeded error logging

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Message-ID: <20230525014009.23345-2-yunfei.dong@mediatek.com>
Date:   Thu, 25 May 2023 09:40:06 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Chen-Yu Tsai <wenst@...omium.org>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, Nathan Hebert <nhebert@...omium.org>
CC:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v4,1/4] media: mediatek: vcodec: Avoid unneeded error logging

Since the LAT decoder works faster than its CORE, getting the trans
buffer may be done only after CORE finishes processing: avoid printing
an error if the decode function returns -EAGAIN, as this means that
the buffer from CORE is not yet available, but will be at a later time.

Also change the log level for calls to vdec_msg_queue_dqbuf() in H264
and VP9 LAT decoder drivers to avoid excessive logging.

Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
 .../media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c   | 2 +-
 .../platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c      | 2 +-
 .../media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
index 995997f702a0..7b3eb0ccb522 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c
@@ -292,7 +292,7 @@ static void mtk_vdec_worker(struct work_struct *work)
 		mtk_v4l2_err("vb2 buffer media request is NULL");
 
 	ret = vdec_if_decode(ctx, bs_src, NULL, &res_chg);
-	if (ret) {
+	if (ret && ret != -EAGAIN) {
 		mtk_v4l2_err(" <===[%d], src_buf[%d] sz=0x%zx pts=%llu vdec_if_decode() ret=%d res_chg=%d===>",
 			     ctx->id, vb2_src->index, bs_src->size,
 			     vb2_src->timestamp, ret, res_chg);
diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
index 999ce7ee5fdc..181cc52e0847 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
@@ -596,7 +596,7 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 
 	lat_buf = vdec_msg_queue_dqbuf(&inst->ctx->msg_queue.lat_ctx);
 	if (!lat_buf) {
-		mtk_vcodec_err(inst, "failed to get lat buffer");
+		mtk_vcodec_debug(inst, "failed to get lat buffer");
 		return -EAGAIN;
 	}
 	share_info = lat_buf->private_data;
diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
index cf16cf2807f0..6d981d7341d2 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
@@ -2069,7 +2069,7 @@ static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 
 	lat_buf = vdec_msg_queue_dqbuf(&instance->ctx->msg_queue.lat_ctx);
 	if (!lat_buf) {
-		mtk_vcodec_err(instance, "Failed to get VP9 lat buf\n");
+		mtk_vcodec_debug(instance, "Failed to get VP9 lat buf\n");
 		return -EAGAIN;
 	}
 	pfc = (struct vdec_vp9_slice_pfc *)lat_buf->private_data;
-- 
2.18.0