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@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index d19234b08342..4225a292d371 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;
 }