linux-kernel - [PATCH] mmc: dw_mmc: Don't print data errors

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Message-Id: <1398210681-22976-1-git-send-email-dianders@chromium.org>
Date:	Tue, 22 Apr 2014 16:51:21 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>
Cc:	yuvaraj.cd@...sung.com, Alim Akhtar <alim.akhtar@...sung.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	linux-samsung-soc@...r.kernel.org,
	Doug Anderson <dianders@...omium.org>, chris@...ntf.net,
	ulf.hansson@...aro.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mmc: dw_mmc: Don't print data errors

Data errors are completely expected during tuning.  Printing them out
is confusing people looking at the kernel logs.  They see things like:

 [    3.613296] dwmmc_exynos 12200000.dwmmc0: data error, status 0x00000088

...and they think something is wrong with their hardware.

Remove the printouts.  We'll leave it up to a higher level to report
about errors.

Signed-off-by: Doug Anderson <dianders@...omium.org>
---
 drivers/mmc/host/dw_mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index cced599..4c8d423 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1248,7 +1248,7 @@ static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data)
 			data->error = -EIO;
 		}
 
-		dev_err(host->dev, "data error, status 0x%08x\n", status);
+		dev_dbg(host->dev, "data error, status 0x%08x\n", status);
 
 		/*
 		 * After an error, there may be data lingering
-- 
1.9.1.423.g4596e3a

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