linux-kernel - [PATCH 08/10] dmatest: define MAX_ERROR

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Date:	Mon,  4 Mar 2013 11:09:32 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	linux-kernel@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 08/10] dmatest: define MAX_ERROR_COUNT constant

Its meaning is to limit amount of error messages to be printed out when buffer
mismatch is occured.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/dma/dmatest.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index d19234b..4225a29 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -66,6 +66,9 @@ module_param(timeout, uint, S_IRUGO);
 MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
 		 "Pass -1 for infinite timeout");
 
+/* Maximum amount of mismatched bytes in buffer to print */
+#define MAX_ERROR_COUNT		32
+
 /*
  * Initialization patterns. All bytes in the source buffer has bit 7
  * set, all bytes in the destination buffer has bit 7 cleared.
@@ -249,7 +252,7 @@ static unsigned int dmatest_verify(u8 **bufs, unsigned int start,
 			actual = buf[i];
 			expected = pattern | (~counter & PATTERN_COUNT_MASK);
 			if (actual != expected) {
-				if (error_count < 32)
+				if (error_count < MAX_ERROR_COUNT)
 					dmatest_mismatch(actual, pattern, i,
 							 counter, is_srcbuf);
 				error_count++;
@@ -258,9 +261,9 @@ static unsigned int dmatest_verify(u8 **bufs, unsigned int start,
 		}
 	}
 
-	if (error_count > 32)
+	if (error_count > MAX_ERROR_COUNT)
 		pr_warning("%s: %u errors suppressed\n",
-			current->comm, error_count - 32);
+			current->comm, error_count - MAX_ERROR_COUNT);
 
 	return error_count;
 }
-- 
1.8.2.rc0.22.gb3600c3

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