From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 19 Apr 2022 15:57:57 -0700
Subject: [PATCH] scsi: ufs: Make the config_scaling_param calls type safe
Git-commit: c906e8328de83b27f27af07cf79afb799e69838a
Patch-mainline: v5.19-rc1
References: jsc#PED-1183

Pass the actual type to config_scaling_param callback as the third argment
instead of a void pointer. Remove a superfluous NULL pointer check from
ufs_qcom_config_scaling_param().

Link: https://lore.kernel.org/r/20220419225811.4127248-15-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/scsi/ufs/ufs-qcom.c | 14 ++++----------
 drivers/scsi/ufs/ufshcd.h   | 10 +++++-----
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 46b24b926860..851caef04a60 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1448,23 +1448,17 @@ static int ufs_qcom_device_reset(struct ufs_hba *hba)
 
 #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
 static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
-					  struct devfreq_dev_profile *p,
-					  void *data)
+					struct devfreq_dev_profile *p,
+					struct devfreq_simple_ondemand_data *d)
 {
-	static struct devfreq_simple_ondemand_data *d;
-
-	if (!data)
-		return;
-
-	d = (struct devfreq_simple_ondemand_data *)data;
 	p->polling_ms = 60;
 	d->upthreshold = 70;
 	d->downdifferential = 5;
 }
 #else
 static void ufs_qcom_config_scaling_param(struct ufs_hba *hba,
-					  struct devfreq_dev_profile *p,
-					  void *data)
+		struct devfreq_dev_profile *p,
+		struct devfreq_simple_ondemand_data *data)
 {
 }
 #endif
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 37e8b72b8c86..a755718649ae 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -348,8 +348,8 @@ struct ufs_hba_variant_ops {
 	int	(*phy_initialization)(struct ufs_hba *);
 	int	(*device_reset)(struct ufs_hba *hba);
 	void	(*config_scaling_param)(struct ufs_hba *hba,
-					struct devfreq_dev_profile *profile,
-					void *data);
+				struct devfreq_dev_profile *profile,
+				struct devfreq_simple_ondemand_data *data);
 	int	(*program_key)(struct ufs_hba *hba,
 			       const union ufs_crypto_cfg_entry *cfg, int slot);
 	void	(*event_notify)(struct ufs_hba *hba,
@@ -1358,11 +1358,11 @@ static inline int ufshcd_vops_device_reset(struct ufs_hba *hba)
 }
 
 static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
-						    struct devfreq_dev_profile
-						    *profile, void *data)
+		struct devfreq_dev_profile *p,
+		struct devfreq_simple_ondemand_data *data)
 {
 	if (hba->vops && hba->vops->config_scaling_param)
-		hba->vops->config_scaling_param(hba, profile, data);
+		hba->vops->config_scaling_param(hba, p, data);
 }
 
 extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
-- 
2.35.3