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WDCIronportException: Internal
From:   Avri Altman <avri.altman@wdc.com>
To:     "James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@oracle.com>,
        linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     gregkh@linuxfoundation.org, Bart Van Assche <bvanassche@acm.org>,
        yongmyung lee <ymhungry.lee@samsung.com>,
        Daejun Park <daejun7.park@samsung.com>,
        alim.akhtar@samsung.com, asutoshd@codeaurora.org,
        Zang Leigang <zangleigang@hisilicon.com>,
        Avi Shchislowski <avi.shchislowski@wdc.com>,
        Bean Huo <beanhuo@micron.com>, cang@codeaurora.org,
        stanley.chu@mediatek.com, Avri Altman <avri.altman@wdc.com>
Subject: [PATCH 1/8] scsi: ufshpb: Cache HPB Control mode on init
Date:   Wed, 27 Jan 2021 17:12:10 +0200
Message-Id: <20210127151217.24760-2-avri.altman@wdc.com>
In-Reply-To: <20210127151217.24760-1-avri.altman@wdc.com>
References: <20210127151217.24760-1-avri.altman@wdc.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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