Commit 4c3386f6 authored by Saurabh Sengar's avatar Saurabh Sengar Committed by Wei Liu
Browse files

drm/hyperv: Add ratelimit on error message 



Due to a full ring buffer, the driver may be unable to send updates to
the Hyper-V host.  But outputing the error message can make the problem
worse because console output is also typically written to the frame
buffer.
Rate limiting the error message, also output the error code for additional
diagnosability.

Signed-off-by: default avatarSaurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: default avatarMichael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1662736193-31379-1-git-send-email-ssengar@linux.microsoft.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent d5ebde1e

drivers/gpu/drm/hyperv/hyperv_drm_proto.c

+1 −1
Original line number Diff line number Diff line
@@ -208,7 +208,7 @@ static inline int hyperv_sendpacket(struct hv_device *hdev, struct synthvid_msg 
			       VM_PKT_DATA_INBAND, 0);



	if (ret)

		drm_err(&hv->dev, "Unable to send packet via vmbus\n");

		drm_err_ratelimited(&hv->dev, "Unable to send packet via vmbus; error %d\n", ret);



	return ret;

}