[Intel-wired-lan] [PATCH v2] ice: use min_t() to make code cleaner in ice_gnss

[David Laight]

From: Wan Jiabing
> Sent: 21 March 2022 14:00
> 
> Fix the following coccicheck warning:
> ./drivers/net/ethernet/intel/ice/ice_gnss.c:79:26-27: WARNING opportunity for min()
> 
> Signed-off-by: Wan Jiabing <wanjiabing at vivo.com>
> ---
> Changelog:
> v2:
> - Use typeof(bytes_left) instead of u8.
> ---
>  drivers/net/ethernet/intel/ice/ice_gnss.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_gnss.c b/drivers/net/ethernet/intel/ice/ice_gnss.c
> index 35579cf4283f..57586a2e6dec 100644
> --- a/drivers/net/ethernet/intel/ice/ice_gnss.c
> +++ b/drivers/net/ethernet/intel/ice/ice_gnss.c
> @@ -76,8 +76,7 @@ static void ice_gnss_read(struct kthread_work *work)
>  	for (i = 0; i < data_len; i += bytes_read) {
>  		u16 bytes_left = data_len - i;

Oh FFS why is that u16?
Don't do arithmetic on anything smaller than 'int'

	David

> 
> -		bytes_read = bytes_left < ICE_MAX_I2C_DATA_SIZE ? bytes_left :
> -					  ICE_MAX_I2C_DATA_SIZE;
> +		bytes_read = min_t(typeof(bytes_left), bytes_left, ICE_MAX_I2C_DATA_SIZE);
> 
>  		err = ice_aq_read_i2c(hw, link_topo, ICE_GNSS_UBX_I2C_BUS_ADDR,
>  				      cpu_to_le16(ICE_GNSS_UBX_EMPTY_DATA),
> --
> 2.35.1

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)