dmaengine: dmatest: Describe members of struct dmatest_params

Kernel documentation validator complains that not all members of
struct dmatest_params are being described. Describe them all.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200424161147.16895-5-andriy.shevchenko@linux.intel.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/dmatest.c

@@ -72,10 +72,6 @@ static bool norandom;
 module_param(norandom, bool, 0644);
 MODULE_PARM_DESC(norandom, "Disable random offset setup (default: random)");
 
-static bool polled;
-module_param(polled, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(polled, "Use polling for completion instead of interrupts");
-
 static bool verbose;
 module_param(verbose, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(verbose, "Enable \"success\" result messages (default: off)");
@@ -88,6 +84,10 @@ static unsigned int transfer_size;
 module_param(transfer_size, uint, 0644);
 MODULE_PARM_DESC(transfer_size, "Optional custom transfer size in bytes (default: not used (0))");
 
+static bool polled;
+module_param(polled, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(polled, "Use polling for completion instead of interrupts");
+
 /**
  * struct dmatest_params - test parameters.
  * @buf_size:		size of the memcpy test buffer
@@ -99,6 +99,11 @@ MODULE_PARM_DESC(transfer_size, "Optional custom transfer size in bytes (default
  * @xor_sources:	number of xor source buffers
  * @pq_sources:		number of p+q source buffers
  * @timeout:		transfer timeout in msec, -1 for infinite timeout
+ * @noverify:		disable data verification
+ * @norandom:		disable random offset setup
+ * @alignment:		custom data address alignment taken as 2^alignment
+ * @transfer_size:	custom transfer size in bytes
+ * @polled:		use polling for completion instead of interrupts
  */
 struct dmatest_params {
 	unsigned int	buf_size;