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Groups > linux.kernel > #1586505

[PATCH] drm/radeon/dp_auxch: Ratelimit aux transfer debug messages

From Lyude <lyude@redhat.com>
Newsgroups linux.kernel
Subject [PATCH] drm/radeon/dp_auxch: Ratelimit aux transfer debug messages
Date 2017-02-22 22:40 +0100
Message-ID <tdMNH-7UO-13@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Aux transfers always fail with non-zero status flags when there's
nothing connected on the port, so we don't usually need to see all of
the debugging information from it. Also, we try reprobing a -lot-, so
without ratelimiting most of the kernel log is filled up with messages
from radeon_dp_aux_transfer_native.

Signed-off-by: Lyude <lyude@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_dp_auxch.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
index 474a8a18..12eac4e 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
@@ -168,7 +168,8 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg
 		goto done;
 	}
 	if (tmp & AUX_RX_ERROR_FLAGS) {
-		DRM_DEBUG_KMS("dp_aux_ch flags not zero: %08x\n", tmp);
+		DRM_DEBUG_KMS_RATELIMITED("dp_aux_ch flags not zero: %08x\n",
+					  tmp);
 		ret = -EIO;
 		goto done;
 	}
-- 
2.9.3

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[PATCH] drm/radeon/dp_auxch: Ratelimit aux transfer debug messages Lyude <lyude@redhat.com> - 2017-02-22 22:40 +0100
  Re: [PATCH] drm/radeon/dp_auxch: Ratelimit aux transfer debug messages Alex Deucher <alexdeucher@gmail.com> - 2017-02-23 15:40 +0100

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