[PATCH 1/4] platform/x86: ideapad-laptop: Remove unnesscary else

[PATCH 1/4] platform/x86: ideapad-laptop: Remove unnesscary else

[Jiaxun Yang]

To deal with checkpatch warning:
WARNING: else is not generally useful after a break or return

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 drivers/platform/x86/ideapad-laptop.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 53ab4e0f8962..9f2a4bc58df0 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -124,10 +124,10 @@ static int read_method_int(acpi_handle handle, const char *method, int *val)
 	if (ACPI_FAILURE(status)) {
 		*val = -1;
 		return -1;
-	} else {
-		*val = result;
-		return 0;
 	}
+	*val = result;
+	return 0;
+
 }
 
 static int method_gbmd(acpi_handle handle, unsigned long *ret)
@@ -164,10 +164,10 @@ static int method_vpcr(acpi_handle handle, int cmd, int *ret)
 	if (ACPI_FAILURE(status)) {
 		*ret = -1;
 		return -1;
-	} else {
-		*ret = result;
-		return 0;
 	}
+	*ret = result;
+	return 0;
+
 }
 
 static int method_vpcw(acpi_handle handle, int cmd, int data)
-- 
2.14.1

[PATCH 2/4] platform/x86: ideapad-laptop: Use __func__ instead of write_ec_cmd in pr_err

[Jiaxun Yang]

To deal with checkpatch warning:
WARNING: Prefer using '"%s...", __func__' to using 'write_ec_cmd',
this function's name, in a string

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 drivers/platform/x86/ideapad-laptop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 9f2a4bc58df0..37a88938bbaa 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -231,7 +231,7 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
 		if (val == 0)
 			return 0;
 	}
-	pr_err("timeout in write_ec_cmd\n");
+	pr_err("timeout in %s\n", __func__);
 	return -1;
 }
 
-- 
2.14.1

[PATCH 3/4] platform/x86: ideapad-laptop: use kstrto instead of sscanf and do clean up

[Jiaxun Yang]

To deal with checkpatch warnings:
WARNING: Prefer kstrto<type> to single variable sscanf

WARNING: Missing a blank line after declarations

WARNING: Block comments use a trailing */ on a separate line

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 drivers/platform/x86/ideapad-laptop.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 1072b24370ac..924b07f7db06 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -406,12 +406,14 @@ static ssize_t store_ideapad_cam(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
-	int ret, state;
+	int ret, state, rc;
 	struct ideapad_private *priv = dev_get_drvdata(dev);
 
+	rc = kstrtoint(buf, 0, &state);
+
 	if (!count)
 		return 0;
-	if (sscanf(buf, "%i", &state) != 1)
+	if (rc != 0)
 		return -EINVAL;
 	ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
 	if (ret < 0)
@@ -437,12 +439,14 @@ static ssize_t store_ideapad_fan(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
-	int ret, state;
+	int ret, state, rc;
 	struct ideapad_private *priv = dev_get_drvdata(dev);
 
+	rc = kstrtoint(buf, 0, &state);
+
 	if (!count)
 		return 0;
-	if (sscanf(buf, "%i", &state) != 1)
+	if (rc != 0)
 		return -EINVAL;
 	if (state < 0 || state > 4 || state == 3)
 		return -EINVAL;
@@ -541,6 +545,7 @@ static umode_t ideapad_is_visible(struct kobject *kobj,
 		supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
 	else if (attr == &dev_attr_fan_mode.attr) {
 		unsigned long value;
+
 		supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN,
 					  &value);
 	} else if (attr == &dev_attr_conservation_mode.attr) {
@@ -880,11 +885,14 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
 
 	/* Without reading from EC touchpad LED doesn't switch state */
 	if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
-		/* Some IdeaPads don't really turn off touchpad - they only
+		/*
+		 * Some IdeaPads don't really turn off touchpad - they only
 		 * switch the LED state. We (de)activate KBC AUX port to turn
 		 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
-		 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
+		 * KEY_TOUCHPAD_ON to not to get out of sync with LED
+		 */
 		unsigned char param;
+
 		i8042_command(&param, value ? I8042_CMD_AUX_ENABLE :
 			      I8042_CMD_AUX_DISABLE);
 		ideapad_input_report(priv, value ? 67 : 66);
-- 
2.14.1

[PATCH 4/4] platform/x86: ideapad-laptop: add lenovo RESCUER R720-15IKBN to no_hw_rfkill_list

[Jiaxun Yang]

Since Roger Jargoyhen <rjargoyhen@gmail.com> reported that this device doesn't have
Hardware rfkill switch, this patch add it to no_hw_rfkill_list to prevent radio always
be blocked

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 drivers/platform/x86/ideapad-laptop.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 924b07f7db06..4d3c7a6990d4 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -971,6 +971,13 @@ static void ideapad_wmi_notify(u32 value, void *context)
  * report all radios as hardware-blocked.
  */
 static const struct dmi_system_id no_hw_rfkill_list[] = {
+	{
+		.ident = "Lenovo RESCUER R720-15IKBN",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "80WW"),
+		},
+	},
 	{
 		.ident = "Lenovo G40-30",
 		.matches = {
-- 
2.14.1

Re: [PATCH 3/4] platform/x86: ideapad-laptop: use kstrto instead of sscanf and do clean up

[Darren Hart]

On Sat, Dec 02, 2017 at 09:45:33PM +0800, Jiaxun Yang wrote:
> To deal with checkpatch warnings:
> WARNING: Prefer kstrto<type> to single variable sscanf
> 
> WARNING: Missing a blank line after declarations
> 
> WARNING: Block comments use a trailing */ on a separate line
> 
> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
> ---
>  drivers/platform/x86/ideapad-laptop.c | 20 ++++++++++++++------
>  1 file changed, 14 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
> index 1072b24370ac..924b07f7db06 100644
> --- a/drivers/platform/x86/ideapad-laptop.c
> +++ b/drivers/platform/x86/ideapad-laptop.c
> @@ -406,12 +406,14 @@ static ssize_t store_ideapad_cam(struct device *dev,
>  				 struct device_attribute *attr,
>  				 const char *buf, size_t count)
>  {
> -	int ret, state;
> +	int ret, state, rc;
>  	struct ideapad_private *priv = dev_get_drvdata(dev);
>  
> +	rc = kstrtoint(buf, 0, &state);
> +
>  	if (!count)
>  		return 0;

Better to keep the string to int here after the check for !count. No reason I
can see to move it above.

> -	if (sscanf(buf, "%i", &state) != 1)
> +	if (rc != 0)
>  		return -EINVAL;
>  	ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
>  	if (ret < 0)
> @@ -437,12 +439,14 @@ static ssize_t store_ideapad_fan(struct device *dev,
>  				 struct device_attribute *attr,
>  				 const char *buf, size_t count)
>  {
> -	int ret, state;
> +	int ret, state, rc;
>  	struct ideapad_private *priv = dev_get_drvdata(dev);
>  
> +	rc = kstrtoint(buf, 0, &state);
> +

Same here

>  	if (!count)
>  		return 0;
> -	if (sscanf(buf, "%i", &state) != 1)
> +	if (rc != 0)

And in both cases, kstrtoint can be used within the if condition, avoiding the
need for a new rc variable.

>  		return -EINVAL;
>  	if (state < 0 || state > 4 || state == 3)
>  		return -EINVAL;
> @@ -541,6 +545,7 @@ static umode_t ideapad_is_visible(struct kobject *kobj,
>  		supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
>  	else if (attr == &dev_attr_fan_mode.attr) {
>  		unsigned long value;
> +
>  		supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN,
>  					  &value);
>  	} else if (attr == &dev_attr_conservation_mode.attr) {
> @@ -880,11 +885,14 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
>  
>  	/* Without reading from EC touchpad LED doesn't switch state */
>  	if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
> -		/* Some IdeaPads don't really turn off touchpad - they only
> +		/*
> +		 * Some IdeaPads don't really turn off touchpad - they only
>  		 * switch the LED state. We (de)activate KBC AUX port to turn
>  		 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
> -		 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
> +		 * KEY_TOUCHPAD_ON to not to get out of sync with LED
> +		 */
>  		unsigned char param;
> +
>  		i8042_command(&param, value ? I8042_CMD_AUX_ENABLE :
>  			      I8042_CMD_AUX_DISABLE);
>  		ideapad_input_report(priv, value ? 67 : 66);
> -- 
> 2.14.1
> 
> 

-- 
Darren Hart
VMware Open Source Technology Center

Re: [PATCH 1/4] platform/x86: ideapad-laptop: Remove unnesscary else

[Darren Hart]

On Sat, Dec 02, 2017 at 09:45:31PM +0800, Jiaxun Yang wrote:
> To deal with checkpatch warning:
> WARNING: else is not generally useful after a break or return
> 

Patches 1,2, and 4 queued for testing. Thanks. See comments in 3 of 4.

-- 
Darren Hart
VMware Open Source Technology Center