Re: [PATCH] platform: move from strlcpy with unused retval to strscpy

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Hi,

On 8/18/22 23:00, Wolfram Sang wrote:
> Follow the advice of the below link and prefer 'strscpy' in this
> subsystem. Conversion is 1:1 because the return value is not used.
> Generated by a coccinelle script.
> 
> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@xxxxxxxxxxxxxx/
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  drivers/platform/surface/surface3_power.c          | 2 +-
>  drivers/platform/x86/dell/dell-wmi-sysman/sysman.c | 2 +-
>  drivers/platform/x86/intel/chtwc_int33fe.c         | 6 +++---
>  drivers/platform/x86/thinkpad_acpi.c               | 4 ++--
>  4 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/platform/surface/surface3_power.c b/drivers/platform/surface/surface3_power.c
> index 444ec81ba02d..4c53d116d59b 100644
> --- a/drivers/platform/surface/surface3_power.c
> +++ b/drivers/platform/surface/surface3_power.c
> @@ -519,7 +519,7 @@ static int mshw0011_probe(struct i2c_client *client)
>  	i2c_set_clientdata(client, data);
>  
>  	memset(&board_info, 0, sizeof(board_info));
> -	strlcpy(board_info.type, "MSHW0011-bat0", I2C_NAME_SIZE);
> +	strscpy(board_info.type, "MSHW0011-bat0", I2C_NAME_SIZE);
>  
>  	bat0 = i2c_acpi_new_device(dev, 1, &board_info);
>  	if (IS_ERR(bat0))
> diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
> index 636bdfa83284..0a6411a8a104 100644
> --- a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
> +++ b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
> @@ -270,7 +270,7 @@ void strlcpy_attr(char *dest, char *src)
>  	size_t len = strlen(src) + 1;
>  
>  	if (len > 1 && len <= MAX_BUFF)
> -		strlcpy(dest, src, len);
> +		strscpy(dest, src, len);
>  
>  	/*len can be zero because any property not-applicable to attribute can
>  	 * be empty so check only for too long buffers and log error
> diff --git a/drivers/platform/x86/intel/chtwc_int33fe.c b/drivers/platform/x86/intel/chtwc_int33fe.c
> index c52ac23e2331..1ea989df513c 100644
> --- a/drivers/platform/x86/intel/chtwc_int33fe.c
> +++ b/drivers/platform/x86/intel/chtwc_int33fe.c
> @@ -270,7 +270,7 @@ cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
>  	}
>  
>  	memset(&board_info, 0, sizeof(board_info));
> -	strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
> +	strscpy(board_info.type, "max17047", I2C_NAME_SIZE);
>  	board_info.dev_name = "max17047";
>  	board_info.fwnode = fwnode;
>  	data->battery_fg = i2c_acpi_new_device(dev, 1, &board_info);
> @@ -361,7 +361,7 @@ static int cht_int33fe_typec_probe(struct platform_device *pdev)
>  	}
>  
>  	memset(&board_info, 0, sizeof(board_info));
> -	strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
> +	strscpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
>  	board_info.dev_name = "fusb302";
>  	board_info.fwnode = fwnode;
>  	board_info.irq = fusb302_irq;
> @@ -381,7 +381,7 @@ static int cht_int33fe_typec_probe(struct platform_device *pdev)
>  	memset(&board_info, 0, sizeof(board_info));
>  	board_info.dev_name = "pi3usb30532";
>  	board_info.fwnode = fwnode;
> -	strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
> +	strscpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
>  
>  	data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
>  	if (IS_ERR(data->pi3usb30532)) {
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index 22d4e8633e30..8dad0428a83c 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -7623,9 +7623,9 @@ static int __init volume_create_alsa_mixer(void)
>  	data = card->private_data;
>  	data->card = card;
>  
> -	strlcpy(card->driver, TPACPI_ALSA_DRVNAME,
> +	strscpy(card->driver, TPACPI_ALSA_DRVNAME,
>  		sizeof(card->driver));
> -	strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME,
> +	strscpy(card->shortname, TPACPI_ALSA_SHRTNAME,
>  		sizeof(card->shortname));
>  	snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s",
>  		 (thinkpad_id.ec_version_str) ?



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