mmc: mmc_test: Only warn about not waiting for busy if it's supported

If the MMC host controller does not support waiting for card signaling
busy state (MMC_CAP_WAIT_WHILE_BUSY cap), there is no point in prining
the relevant warning message.
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Reviewed-by: NMatt Fleming <matt@console-pimps.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

drivers/mmc/card/mmc_test.c

@@ -226,9 +226,10 @@ static int mmc_test_wait_busy(struct mmc_test_card *test)
 
 		if (!busy && mmc_test_busy(&cmd)) {
 			busy = 1;
-			printk(KERN_INFO "%s: Warning: Host did not "
-				"wait for busy state to end.\n",
-				mmc_hostname(test->card->host));
+			if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
+				printk(KERN_INFO "%s: Warning: Host did not "
+					"wait for busy state to end.\n",
+					mmc_hostname(test->card->host));
 		}
 	} while (mmc_test_busy(&cmd));