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dmatest: define MAX_ERROR_COUNT constant

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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@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2013-03-04 11:09:32 +02:00 committed by Vinod Koul
parent 3e5ccd866f
commit 74b5c07a51
1 changed files with 6 additions and 3 deletions
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9
drivers/dma/dmatest.c
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@ -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;
}