linux-kernel - [PATCH 5/6] habanalabs: don't print error when queues are full

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Message-Id: <20191110215533.754-5-oded.gabbay@gmail.com>
Date:   Sun, 10 Nov 2019 23:55:32 +0200
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     linux-kernel@...r.kernel.org, oshpigelman@...ana.ai,
        ttayar@...ana.ai
Cc:     gregkh@...uxfoundation.org
Subject: [PATCH 5/6] habanalabs: don't print error when queues are full

If the queues are full and we return -EAGAIN to the user, there is no need
to print an error, as that case isn't an error and the user is expected to
re-submit the work.

Signed-off-by: Oded Gabbay <oded.gabbay@...il.com>
---
 drivers/misc/habanalabs/command_submission.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/command_submission.c b/drivers/misc/habanalabs/command_submission.c
index 776ddafc47fb..8850f475a413 100644
--- a/drivers/misc/habanalabs/command_submission.c
+++ b/drivers/misc/habanalabs/command_submission.c
@@ -626,9 +626,10 @@ static int _hl_cs_ioctl(struct hl_fpriv *hpriv, void __user *chunks,
 
 	rc = hl_hw_queue_schedule_cs(cs);
 	if (rc) {
-		dev_err(hdev->dev,
-			"Failed to submit CS %d.%llu to H/W queues, error %d\n",
-			cs->ctx->asid, cs->sequence, rc);
+		if (rc != -EAGAIN)
+			dev_err(hdev->dev,
+				"Failed to submit CS %d.%llu to H/W queues, error %d\n",
+				cs->ctx->asid, cs->sequence, rc);
 		goto free_cs_object;
 	}
 
-- 
2.17.1