diff mbox series

[1/8] scsi: ufs: Initialize struct uic_command once

Message ID 20240617210844.337476-2-bvanassche@acm.org
State Superseded
Headers show
Series UFS patches for kernel 6.11 | expand

Commit Message

Bart Van Assche June 17, 2024, 9:07 p.m. UTC
Instead of first zero-initializing struct uic_command and next initializing
it memberwise, initialize all members at once.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ufs/core/ufshcd.c | 62 ++++++++++++++++++++-------------------
 include/ufs/ufshcd.h      |  4 +--
 2 files changed, 34 insertions(+), 32 deletions(-)

Comments

Daejun Park June 18, 2024, 1:25 a.m. UTC | #1
Hi Bart,
 
> Instead of first zero-initializing struct uic_command and next initializing
> it memberwise, initialize all members at once.
> 
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
> ---
> drivers/ufs/core/ufshcd.c 62 ++++++++++++++++++++-------------------
> include/ufs/ufshcd.h        4 +--
> 2 files changed, 34 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 41bf2e249c83..5d784876513e 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -3993,11 +3993,11 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
>   */
> static int ufshcd_dme_link_startup(struct ufs_hba *hba)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_LINK_STARTUP,
> +        };
>          int ret;
> 
> -        uic_cmd.command = UIC_CMD_DME_LINK_STARTUP;
> -
>          ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>          if (ret)
>                  dev_dbg(hba->dev,
> @@ -4015,11 +4015,11 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba)
>   */
> static int ufshcd_dme_reset(struct ufs_hba *hba)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_RESET,
> +        };
>          int ret;
> 
> -        uic_cmd.command = UIC_CMD_DME_RESET;
> -
>          ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>          if (ret)
>                  dev_err(hba->dev,
> @@ -4054,11 +4054,11 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_configure_adapt);
>   */
> static int ufshcd_dme_enable(struct ufs_hba *hba)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_ENABLE,
> +        };
>          int ret;
> 
> -        uic_cmd.command = UIC_CMD_DME_ENABLE;
> -
>          ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>          if (ret)
>                  dev_err(hba->dev,
> @@ -4111,7 +4111,12 @@ static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba)
> int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
>                          u8 attr_set, u32 mib_val, u8 peer)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = peer ? UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET,
> +                .argument1 = attr_sel,
> +                .argument2 = UIC_ARG_ATTR_TYPE(attr_set),
> +                .argument3 = mib_val,
> +        };
>          static const char *const action[] = {
>                  "dme-set",
>                  "dme-peer-set"
> @@ -4120,12 +4125,6 @@ int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
>          int ret;
>          int retries = UFS_UIC_COMMAND_RETRIES;
> 
> -        uic_cmd.command = peer ?
> -                UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET;
> -        uic_cmd.argument1 = attr_sel;
> -        uic_cmd.argument2 = UIC_ARG_ATTR_TYPE(attr_set);
> -        uic_cmd.argument3 = mib_val;
> -
>          do {
>                  /* for peer attributes we retry upon failure */
>                  ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> @@ -4155,7 +4154,11 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_set_attr);
> int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
>                          u32 *mib_val, u8 peer)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = peer ? UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET,
> +                .argument1 = attr_sel,
> +
Empty line.

> +        };
>          static const char *const action[] = {
>                  "dme-get",
>                  "dme-peer-get"
> @@ -4189,10 +4192,6 @@ int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
>                  }
>          }
> 
> -        uic_cmd.command = peer ?
> -                UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET;
> -        uic_cmd.argument1 = attr_sel;
> -
>          do {
>                  /* for peer attributes we retry upon failure */
>                  ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> @@ -4325,7 +4324,11 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
>   */
> int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_SET,
> +                .argument1 = UIC_ARG_MIB(PA_PWRMODE),
> +                .argument3 = mode,
> +        };
>          int ret;
> 
>          if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) {
> @@ -4338,9 +4341,6 @@ int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
>                  }
>          }
> 
> -        uic_cmd.command = UIC_CMD_DME_SET;
> -        uic_cmd.argument1 = UIC_ARG_MIB(PA_PWRMODE);
> -        uic_cmd.argument3 = mode;
>          ufshcd_hold(hba);
>          ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>          ufshcd_release(hba);
> @@ -4381,13 +4381,14 @@ EXPORT_SYMBOL_GPL(ufshcd_link_recovery);
> 
> int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
> {
> -        int ret;
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_HIBER_ENTER,
> +        };
>          ktime_t start = ktime_get();
> +        int ret;
> 
>          ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, PRE_CHANGE);
> 
> -        uic_cmd.command = UIC_CMD_DME_HIBER_ENTER;
>          ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>          trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter",
>                              ktime_to_us(ktime_sub(ktime_get(), start)), ret);
> @@ -4405,13 +4406,14 @@ EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter);
> 
> int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
> {
> -        struct uic_command uic_cmd = {0};
> +        struct uic_command uic_cmd = {
> +                .command = UIC_CMD_DME_HIBER_EXIT,
> +        };
>          int ret;
>          ktime_t start = ktime_get();
> 
>          ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, PRE_CHANGE);
> 
> -        uic_cmd.command = UIC_CMD_DME_HIBER_EXIT;
>          ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>          trace_ufshcd_profile_hibern8(dev_name(hba->dev), "exit",
>                              ktime_to_us(ktime_sub(ktime_get(), start)), ret);
> diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
> index 9e0581115b34..d4d63507d090 100644
> --- a/include/ufs/ufshcd.h
> +++ b/include/ufs/ufshcd.h
> @@ -73,8 +73,8 @@ enum ufs_event_type {
>   * @done: UIC command completion
>   */
> struct uic_command {
> -        u32 command;
> -        u32 argument1;
> +        const u32 command;
> +        const u32 argument1;
>          u32 argument2;
>          u32 argument3;
>          int cmd_active;

Reviewed-by: Daejun Park <daejun7.park@samsung.com>

Thanks,

Daejun
Avri Altman June 18, 2024, 6:18 a.m. UTC | #2
> Instead of first zero-initializing struct uic_command and next initializing
> it memberwise, initialize all members at once.
> 
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Manivannan Sadhasivam June 19, 2024, 6:55 a.m. UTC | #3
On Mon, Jun 17, 2024 at 02:07:40PM -0700, Bart Van Assche wrote:
> Instead of first zero-initializing struct uic_command and next initializing
> it memberwise, initialize all members at once.
> 
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

- Mani

> ---
>  drivers/ufs/core/ufshcd.c | 62 ++++++++++++++++++++-------------------
>  include/ufs/ufshcd.h      |  4 +--
>  2 files changed, 34 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 41bf2e249c83..5d784876513e 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -3993,11 +3993,11 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
>   */
>  static int ufshcd_dme_link_startup(struct ufs_hba *hba)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_LINK_STARTUP,
> +	};
>  	int ret;
>  
> -	uic_cmd.command = UIC_CMD_DME_LINK_STARTUP;
> -
>  	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>  	if (ret)
>  		dev_dbg(hba->dev,
> @@ -4015,11 +4015,11 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba)
>   */
>  static int ufshcd_dme_reset(struct ufs_hba *hba)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_RESET,
> +	};
>  	int ret;
>  
> -	uic_cmd.command = UIC_CMD_DME_RESET;
> -
>  	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>  	if (ret)
>  		dev_err(hba->dev,
> @@ -4054,11 +4054,11 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_configure_adapt);
>   */
>  static int ufshcd_dme_enable(struct ufs_hba *hba)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_ENABLE,
> +	};
>  	int ret;
>  
> -	uic_cmd.command = UIC_CMD_DME_ENABLE;
> -
>  	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
>  	if (ret)
>  		dev_err(hba->dev,
> @@ -4111,7 +4111,12 @@ static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba)
>  int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
>  			u8 attr_set, u32 mib_val, u8 peer)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = peer ? UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET,
> +		.argument1 = attr_sel,
> +		.argument2 = UIC_ARG_ATTR_TYPE(attr_set),
> +		.argument3 = mib_val,
> +	};
>  	static const char *const action[] = {
>  		"dme-set",
>  		"dme-peer-set"
> @@ -4120,12 +4125,6 @@ int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
>  	int ret;
>  	int retries = UFS_UIC_COMMAND_RETRIES;
>  
> -	uic_cmd.command = peer ?
> -		UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET;
> -	uic_cmd.argument1 = attr_sel;
> -	uic_cmd.argument2 = UIC_ARG_ATTR_TYPE(attr_set);
> -	uic_cmd.argument3 = mib_val;
> -
>  	do {
>  		/* for peer attributes we retry upon failure */
>  		ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> @@ -4155,7 +4154,11 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_set_attr);
>  int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
>  			u32 *mib_val, u8 peer)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = peer ? UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET,
> +		.argument1 = attr_sel,
> +
> +	};
>  	static const char *const action[] = {
>  		"dme-get",
>  		"dme-peer-get"
> @@ -4189,10 +4192,6 @@ int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
>  		}
>  	}
>  
> -	uic_cmd.command = peer ?
> -		UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET;
> -	uic_cmd.argument1 = attr_sel;
> -
>  	do {
>  		/* for peer attributes we retry upon failure */
>  		ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
> @@ -4325,7 +4324,11 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
>   */
>  int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_SET,
> +		.argument1 = UIC_ARG_MIB(PA_PWRMODE),
> +		.argument3 = mode,
> +	};
>  	int ret;
>  
>  	if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) {
> @@ -4338,9 +4341,6 @@ int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
>  		}
>  	}
>  
> -	uic_cmd.command = UIC_CMD_DME_SET;
> -	uic_cmd.argument1 = UIC_ARG_MIB(PA_PWRMODE);
> -	uic_cmd.argument3 = mode;
>  	ufshcd_hold(hba);
>  	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>  	ufshcd_release(hba);
> @@ -4381,13 +4381,14 @@ EXPORT_SYMBOL_GPL(ufshcd_link_recovery);
>  
>  int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
>  {
> -	int ret;
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_HIBER_ENTER,
> +	};
>  	ktime_t start = ktime_get();
> +	int ret;
>  
>  	ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, PRE_CHANGE);
>  
> -	uic_cmd.command = UIC_CMD_DME_HIBER_ENTER;
>  	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>  	trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter",
>  			     ktime_to_us(ktime_sub(ktime_get(), start)), ret);
> @@ -4405,13 +4406,14 @@ EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter);
>  
>  int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
>  {
> -	struct uic_command uic_cmd = {0};
> +	struct uic_command uic_cmd = {
> +		.command = UIC_CMD_DME_HIBER_EXIT,
> +	};
>  	int ret;
>  	ktime_t start = ktime_get();
>  
>  	ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, PRE_CHANGE);
>  
> -	uic_cmd.command = UIC_CMD_DME_HIBER_EXIT;
>  	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
>  	trace_ufshcd_profile_hibern8(dev_name(hba->dev), "exit",
>  			     ktime_to_us(ktime_sub(ktime_get(), start)), ret);
> diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
> index 9e0581115b34..d4d63507d090 100644
> --- a/include/ufs/ufshcd.h
> +++ b/include/ufs/ufshcd.h
> @@ -73,8 +73,8 @@ enum ufs_event_type {
>   * @done: UIC command completion
>   */
>  struct uic_command {
> -	u32 command;
> -	u32 argument1;
> +	const u32 command;
> +	const u32 argument1;
>  	u32 argument2;
>  	u32 argument3;
>  	int cmd_active;
diff mbox series

Patch

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 41bf2e249c83..5d784876513e 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -3993,11 +3993,11 @@  static void ufshcd_host_memory_configure(struct ufs_hba *hba)
  */
 static int ufshcd_dme_link_startup(struct ufs_hba *hba)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_LINK_STARTUP,
+	};
 	int ret;
 
-	uic_cmd.command = UIC_CMD_DME_LINK_STARTUP;
-
 	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
 	if (ret)
 		dev_dbg(hba->dev,
@@ -4015,11 +4015,11 @@  static int ufshcd_dme_link_startup(struct ufs_hba *hba)
  */
 static int ufshcd_dme_reset(struct ufs_hba *hba)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_RESET,
+	};
 	int ret;
 
-	uic_cmd.command = UIC_CMD_DME_RESET;
-
 	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
 	if (ret)
 		dev_err(hba->dev,
@@ -4054,11 +4054,11 @@  EXPORT_SYMBOL_GPL(ufshcd_dme_configure_adapt);
  */
 static int ufshcd_dme_enable(struct ufs_hba *hba)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_ENABLE,
+	};
 	int ret;
 
-	uic_cmd.command = UIC_CMD_DME_ENABLE;
-
 	ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
 	if (ret)
 		dev_err(hba->dev,
@@ -4111,7 +4111,12 @@  static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba)
 int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
 			u8 attr_set, u32 mib_val, u8 peer)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = peer ? UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET,
+		.argument1 = attr_sel,
+		.argument2 = UIC_ARG_ATTR_TYPE(attr_set),
+		.argument3 = mib_val,
+	};
 	static const char *const action[] = {
 		"dme-set",
 		"dme-peer-set"
@@ -4120,12 +4125,6 @@  int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
 	int ret;
 	int retries = UFS_UIC_COMMAND_RETRIES;
 
-	uic_cmd.command = peer ?
-		UIC_CMD_DME_PEER_SET : UIC_CMD_DME_SET;
-	uic_cmd.argument1 = attr_sel;
-	uic_cmd.argument2 = UIC_ARG_ATTR_TYPE(attr_set);
-	uic_cmd.argument3 = mib_val;
-
 	do {
 		/* for peer attributes we retry upon failure */
 		ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
@@ -4155,7 +4154,11 @@  EXPORT_SYMBOL_GPL(ufshcd_dme_set_attr);
 int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
 			u32 *mib_val, u8 peer)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = peer ? UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET,
+		.argument1 = attr_sel,
+
+	};
 	static const char *const action[] = {
 		"dme-get",
 		"dme-peer-get"
@@ -4189,10 +4192,6 @@  int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
 		}
 	}
 
-	uic_cmd.command = peer ?
-		UIC_CMD_DME_PEER_GET : UIC_CMD_DME_GET;
-	uic_cmd.argument1 = attr_sel;
-
 	do {
 		/* for peer attributes we retry upon failure */
 		ret = ufshcd_send_uic_cmd(hba, &uic_cmd);
@@ -4325,7 +4324,11 @@  static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
  */
 int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_SET,
+		.argument1 = UIC_ARG_MIB(PA_PWRMODE),
+		.argument3 = mode,
+	};
 	int ret;
 
 	if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) {
@@ -4338,9 +4341,6 @@  int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
 		}
 	}
 
-	uic_cmd.command = UIC_CMD_DME_SET;
-	uic_cmd.argument1 = UIC_ARG_MIB(PA_PWRMODE);
-	uic_cmd.argument3 = mode;
 	ufshcd_hold(hba);
 	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
 	ufshcd_release(hba);
@@ -4381,13 +4381,14 @@  EXPORT_SYMBOL_GPL(ufshcd_link_recovery);
 
 int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
 {
-	int ret;
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_HIBER_ENTER,
+	};
 	ktime_t start = ktime_get();
+	int ret;
 
 	ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, PRE_CHANGE);
 
-	uic_cmd.command = UIC_CMD_DME_HIBER_ENTER;
 	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
 	trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter",
 			     ktime_to_us(ktime_sub(ktime_get(), start)), ret);
@@ -4405,13 +4406,14 @@  EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter);
 
 int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
 {
-	struct uic_command uic_cmd = {0};
+	struct uic_command uic_cmd = {
+		.command = UIC_CMD_DME_HIBER_EXIT,
+	};
 	int ret;
 	ktime_t start = ktime_get();
 
 	ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, PRE_CHANGE);
 
-	uic_cmd.command = UIC_CMD_DME_HIBER_EXIT;
 	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);
 	trace_ufshcd_profile_hibern8(dev_name(hba->dev), "exit",
 			     ktime_to_us(ktime_sub(ktime_get(), start)), ret);
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 9e0581115b34..d4d63507d090 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -73,8 +73,8 @@  enum ufs_event_type {
  * @done: UIC command completion
  */
 struct uic_command {
-	u32 command;
-	u32 argument1;
+	const u32 command;
+	const u32 argument1;
 	u32 argument2;
 	u32 argument3;
 	int cmd_active;