scsi: ufs: Group UFS WB related flags in struct ufs_dev_info

UFS device-related flags should be grouped in ufs_dev_info. Move wb_enabled
and wb_buf_flush_enabled out from struct ufs_hba, group them in struct
ufs_dev_info, and align the names of the structure members vertically.

Link: https://lore.kernel.org/r/20210119163847.20165-6-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Acked-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs-sysfs.c

@@ -214,7 +214,7 @@ static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%d\n", hba->wb_enabled);
+	return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled);
 }
 
 static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,

drivers/scsi/ufs/ufs.h

@@ -527,20 +527,25 @@ struct ufs_vreg_info {
 };
 
 struct ufs_dev_info {
-	bool f_power_on_wp_en;
+	bool	f_power_on_wp_en;
 	/* Keeps information if any of the LU is power on write protected */
-	bool is_lu_power_on_wp;
+	bool	is_lu_power_on_wp;
 	/* Maximum number of general LU supported by the UFS device */
-	u8 max_lu_supported;
-	u8 wb_dedicated_lu;
-	u16 wmanufacturerid;
+	u8	max_lu_supported;
+	u16	wmanufacturerid;
 	/*UFS device Product Name */
-	u8 *model;
-	u16 wspecversion;
-	u32 clk_gating_wait_us;
-	u8 b_wb_buffer_type;
-	bool b_rpm_dev_flush_capable;
-	u8 b_presrv_uspc_en;
+	u8	*model;
+	u16	wspecversion;
+	u32	clk_gating_wait_us;
+
+	/* UFS WB related flags */
+	bool    wb_enabled;
+	bool    wb_buf_flush_enabled;
+	u8	wb_dedicated_lu;
+	u8      wb_buffer_type;
+
+	bool	b_rpm_dev_flush_capable;
+	u8	b_presrv_uspc_en;
 };
 
 /*

drivers/scsi/ufs/ufshcd.c

@@ -607,8 +607,8 @@ static void ufshcd_device_reset(struct ufs_hba *hba)
 	if (!err) {
 		ufshcd_set_ufs_dev_active(hba);
 		if (ufshcd_is_wb_allowed(hba)) {
-			hba->wb_enabled = false;
-			hba->wb_buf_flush_enabled = false;
+			hba->dev_info.wb_enabled = false;
+			hba->dev_info.wb_buf_flush_enabled = false;
 		}
 	}
 	if (err != -EOPNOTSUPP)
@@ -5424,7 +5424,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
 	if (!ufshcd_is_wb_allowed(hba))
 		return 0;
 
-	if (!(enable ^ hba->wb_enabled))
+	if (!(enable ^ hba->dev_info.wb_enabled))
 		return 0;
 	if (enable)
 		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
@@ -5440,7 +5440,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
 		return ret;
 	}
 
-	hba->wb_enabled = enable;
+	hba->dev_info.wb_enabled = enable;
 	dev_dbg(hba->dev, "%s write booster %s %d\n",
 			__func__, enable ? "enable" : "disable", ret);
 
@@ -5477,7 +5477,7 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
 	int ret;
 	u8 index;
 
-	if (!ufshcd_is_wb_allowed(hba) || hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || hba->dev_info.wb_buf_flush_enabled)
 		return 0;
 
 	index = ufshcd_wb_get_query_index(hba);
@@ -5488,7 +5488,7 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
 		dev_err(hba->dev, "%s WB - buf flush enable failed %d\n",
 			__func__, ret);
 	else
-		hba->wb_buf_flush_enabled = true;
+		hba->dev_info.wb_buf_flush_enabled = true;
 
 	dev_dbg(hba->dev, "WB - Flush enabled: %d\n", ret);
 	return ret;
@@ -5499,7 +5499,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
 	int ret;
 	u8 index;
 
-	if (!ufshcd_is_wb_allowed(hba) || !hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || !hba->dev_info.wb_buf_flush_enabled)
 		return 0;
 
 	index = ufshcd_wb_get_query_index(hba);
@@ -5510,7 +5510,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
 		dev_warn(hba->dev, "%s: WB - buf flush disable failed %d\n",
 			 __func__, ret);
 	} else {
-		hba->wb_buf_flush_enabled = false;
+		hba->dev_info.wb_buf_flush_enabled = false;
 		dev_dbg(hba->dev, "WB - Flush disabled: %d\n", ret);
 	}
 
@@ -7295,13 +7295,12 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 	 * says, in dedicated wb buffer mode, a max of 1 lun would have wb
 	 * buffer configured.
 	 */
-	dev_info->b_wb_buffer_type =
-		desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
+	dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
 
 	dev_info->b_presrv_uspc_en =
 		desc_buf[DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN];
 
-	if (dev_info->b_wb_buffer_type == WB_BUF_MODE_SHARED) {
+	if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) {
 		if (!get_unaligned_be32(desc_buf +
 				   DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS))
 			goto wb_disabled;

drivers/scsi/ufs/ufshcd.h

@@ -822,8 +822,6 @@ struct ufs_hba {
 
 	struct device		bsg_dev;
 	struct request_queue	*bsg_queue;
-	bool wb_buf_flush_enabled;
-	bool wb_enabled;
 	struct delayed_work rpm_dev_flush_recheck_work;
 
 #ifdef CONFIG_SCSI_UFS_CRYPTO
@@ -971,7 +969,7 @@ static inline bool ufshcd_keep_autobkops_enabled_except_suspend(
 
 static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 {
-	if (hba->dev_info.b_wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
+	if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
 		return hba->dev_info.wb_dedicated_lu;
 	return 0;
 }