[PATCH RFC] scsi: ufs: Disable blk-mq for now

From: Adrian Hunter
Date: Thu Sep 13 2018 - 07:30:55 EST


blk-mq does not support runtime pm, so disable blk-mq support for now.

Fixes: d5038a13eca7 ("scsi: core: switch to scsi-mq by default")
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/scsi/ufs/ufshcd.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 40548bae8efa..a4d36497a047 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7975,6 +7975,13 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
err = -ENOMEM;
goto out_error;
}
+
+ /*
+ * Do not use blk-mq at this time because blk-mq does not support
+ * runtime pm.
+ */
+ host->use_blk_mq = false;
+
hba = shost_priv(host);
hba->host = host;
hba->dev = dev;
--
2.17.1