Patch "mmc: mmc_test: Ensure command queue is disabled for testing" has been added to the 4.15-stable tree

Patch "mmc: mmc_test: Ensure command queue is disabled for testing" has been added to the 4.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    mmc: mmc_test: Ensure command queue is disabled for testing

to the 4.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mmc-mmc_test-ensure-command-queue-is-disabled-for-testing.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Fri Mar 16 15:11:08 CET 2018
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Dec 2017 14:55:31 +0200
Subject: mmc: mmc_test: Ensure command queue is disabled for testing

From: Adrian Hunter <adrian.hunter@intel.com>


[ Upstream commit 23a185254ace8e63dc4ca36e0315aed9440ae749 ]

mmc_test disables the command queue because none of the tests use the
command queue. However the Reset Test will re-enable it, so disable it in
that case too.

Fixes: 9d4579a85c84 ("mmc: mmc_test: Disable Command Queue while mmc_test is used")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/core/mmc_test.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -2328,10 +2328,17 @@ static int mmc_test_reset(struct mmc_tes
 	int err;
 
 	err = mmc_hw_reset(host);
-	if (!err)
+	if (!err) {
+		/*
+		 * Reset will re-enable the card's command queue, but tests
+		 * expect it to be disabled.
+		 */
+		if (card->ext_csd.cmdq_en)
+			mmc_cmdq_disable(card);
 		return RESULT_OK;
-	else if (err == -EOPNOTSUPP)
+	} else if (err == -EOPNOTSUPP) {
 		return RESULT_UNSUP_HOST;
+	}
 
 	return RESULT_FAIL;
 }


Patches currently in stable-queue which might be from adrian.hunter@intel.com are

queue-4.15/mmc-mmc_test-ensure-command-queue-is-disabled-for-testing.patch
queue-4.15/perf-report-fix-d-output-for-user-metadata-events.patch