[PATCH 1/8] scsi: ufshpb: Cache HPB Control mode on init

Avri Altman
2021-01-27T15:25:17Z

We will use it later, when we'll need to differentiate between device
and host control modes.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
---
drivers/scsi/ufs/ufshpb.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index d3e6c5b32328..183bdf35f2d0 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -26,6 +26,8 @@ static int tot_active_srgn_pages;

static struct workqueue_struct *ufshpb_wq;

+static enum UFSHPB_MODE ufshpb_mode;
+
bool ufshpb_is_allowed(struct ufs_hba *hba)
{
return !(hba->ufshpb_dev.hpb_disabled);
@@ -1690,10 +1692,9 @@ void ufshpb_get_dev_info(struct ufs_hba *hba, u8 *desc_buf)
{
struct ufshpb_dev_info *hpb_dev_info = &hba->ufshpb_dev;
int version;
- u8 hpb_mode;

- hpb_mode = desc_buf[DEVICE_DESC_PARAM_HPB_CONTROL];
- if (hpb_mode == HPB_HOST_CONTROL) {
+ ufshpb_mode = desc_buf[DEVICE_DESC_PARAM_HPB_CONTROL];
+ if (ufshpb_mode == HPB_HOST_CONTROL) {
dev_err(hba->dev, "%s: host control mode is not supported.\n",
__func__);
hpb_dev_info->hpb_disabled = true;
--
2.25.1