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

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Hi,

On 8/19/22 08:22, Andy Shevchenko wrote:
> On Fri, Aug 19, 2022 at 12:06 AM Wolfram Sang
> <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> Follow the advice of the below link and prefer 'strscpy' in this
> 
> We refer to the functions like this: strscpy() (note no quote marks).
> 
>> subsystem. Conversion is 1:1 because the return value is not used.
>> Generated by a coccinelle script.
> 
> I assume you are experimenting with coccinelle, so I have no objection
> to the change, but in PDx86 we usually want to have one patch per
> driver. Can you split?

Actually, although we do in general split patches per driver
as Andy says, this one is so small / simple that I'm happy to
merge it as is. I'll pick this up during my next round of
merges coming Monday.

> You also may add
> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

Thanks for the review.

Regards,

Hans




> to each of them.
> 
>> Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@xxxxxxxxxxxxxx/
>> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
>> ---
>>  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) ?
>> --
>> 2.35.1
>>
> 
> 



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