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From:   Benjamin Gaignard <benjamin.gaignard@collabora.com>
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 <benjamin.gaignard@collabora.com>
Subject: [PATCH v14 03/56] media: videobuf2: Stop spamming kernel log with all queue counter
Date:   Tue, 31 Oct 2023 17:30:11 +0100
Message-Id: <20231031163104.112469-4-benjamin.gaignard@collabora.com>
In-Reply-To: <20231031163104.112469-1-benjamin.gaignard@collabora.com>
References: <20231031163104.112469-1-benjamin.gaignard@collabora.com>
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Only report unbalanced queue counters do avoid spamming kernel log
with useless information.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
 .../media/common/videobuf2/videobuf2-core.c   | 79 +++++++++++--------
 1 file changed, 44 insertions(+), 35 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 09be8e026044..47dba2a20d73 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -533,25 +533,26 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
 	/*
-	 * Check that all the calls were balances during the life-time of this
-	 * queue. If not (or if the debug level is 1 or up), then dump the
-	 * counters to the kernel log.
+	 * Check that all the calls were balanced during the life-time of this
+	 * queue. If not then dump the counters to the kernel log.
 	 */
 	if (q->num_buffers) {
 		bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
 				  q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
 				  q->cnt_wait_prepare != q->cnt_wait_finish;
 
-		if (unbalanced || debug) {
-			pr_info("counters for queue %p:%s\n", q,
-				unbalanced ? " UNBALANCED!" : "");
-			pr_info("     setup: %u start_streaming: %u stop_streaming: %u\n",
-				q->cnt_queue_setup, q->cnt_start_streaming,
-				q->cnt_stop_streaming);
-			pr_info("     prepare_streaming: %u unprepare_streaming: %u\n",
-				q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
-			pr_info("     wait_prepare: %u wait_finish: %u\n",
-				q->cnt_wait_prepare, q->cnt_wait_finish);
+		if (unbalanced) {
+			pr_info("unbalanced counters for queue %p:\n", q);
+			if (q->cnt_start_streaming != q->cnt_stop_streaming)
+				pr_info("     setup: %u start_streaming: %u stop_streaming: %u\n",
+					q->cnt_queue_setup, q->cnt_start_streaming,
+					q->cnt_stop_streaming);
+			if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
+				pr_info("     prepare_streaming: %u unprepare_streaming: %u\n",
+					q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
+			if (q->cnt_wait_prepare != q->cnt_wait_finish)
+				pr_info("     wait_prepare: %u wait_finish: %u\n",
+					q->cnt_wait_prepare, q->cnt_wait_finish);
 		}
 		q->cnt_queue_setup = 0;
 		q->cnt_wait_prepare = 0;
@@ -572,29 +573,37 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
 				  vb->cnt_buf_prepare != vb->cnt_buf_finish ||
 				  vb->cnt_buf_init != vb->cnt_buf_cleanup;
 
-		if (unbalanced || debug) {
-			pr_info("   counters for queue %p, buffer %d:%s\n",
-				q, buffer, unbalanced ? " UNBALANCED!" : "");
-			pr_info("     buf_init: %u buf_cleanup: %u buf_prepare: %u buf_finish: %u\n",
-				vb->cnt_buf_init, vb->cnt_buf_cleanup,
-				vb->cnt_buf_prepare, vb->cnt_buf_finish);
-			pr_info("     buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
-				vb->cnt_buf_out_validate, vb->cnt_buf_queue,
-				vb->cnt_buf_done, vb->cnt_buf_request_complete);
-			pr_info("     alloc: %u put: %u prepare: %u finish: %u mmap: %u\n",
-				vb->cnt_mem_alloc, vb->cnt_mem_put,
-				vb->cnt_mem_prepare, vb->cnt_mem_finish,
-				vb->cnt_mem_mmap);
-			pr_info("     get_userptr: %u put_userptr: %u\n",
-				vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
-			pr_info("     attach_dmabuf: %u detach_dmabuf: %u map_dmabuf: %u unmap_dmabuf: %u\n",
-				vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf,
-				vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
-			pr_info("     get_dmabuf: %u num_users: %u vaddr: %u cookie: %u\n",
+		if (unbalanced) {
+			pr_info("unbalanced counters for queue %p, buffer %d:\n",
+				q, buffer);
+			if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
+				pr_info("     buf_init: %u buf_cleanup: %u\n",
+					vb->cnt_buf_init, vb->cnt_buf_cleanup);
+			if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
+				pr_info("     buf_prepare: %u buf_finish: %u\n",
+					vb->cnt_buf_prepare, vb->cnt_buf_finish);
+			if (vb->cnt_buf_queue != vb->cnt_buf_done)
+				pr_info("     buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
+					vb->cnt_buf_out_validate, vb->cnt_buf_queue,
+					vb->cnt_buf_done, vb->cnt_buf_request_complete);
+			if (vb->cnt_mem_alloc != vb->cnt_mem_put)
+				pr_info("     alloc: %u put: %u\n",
+					vb->cnt_mem_alloc, vb->cnt_mem_put);
+			if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
+				pr_info("     prepare: %u finish: %u\n",
+					vb->cnt_mem_prepare, vb->cnt_mem_finish);
+			if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
+				pr_info("     get_userptr: %u put_userptr: %u\n",
+					vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
+			if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
+				pr_info("     attach_dmabuf: %u detach_dmabuf: %u\n",
+					vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
+			if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
+				pr_info("     map_dmabuf: %u unmap_dmabuf: %u\n",
+					vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
+			pr_info("     get_dmabuf: %u num_users: %u\n",
 				vb->cnt_mem_get_dmabuf,
-				vb->cnt_mem_num_users,
-				vb->cnt_mem_vaddr,
-				vb->cnt_mem_cookie);
+				vb->cnt_mem_num_users);
 		}
 	}
 #endif
-- 
2.39.2