Re: [PATCH][next] net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255

From: Florian Fainelli
Date: Wed Apr 28 2021 - 11:51:06 EST




On 4/28/2021 5:00 AM, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Currently the for-loop in ksz8_port_init_cnt is causing a static
> analysis infinite loop warning with the comparison of
> mib->cnt_ptr < dev->reg_mib_cnt. This occurs because mib->cnt_ptr
> is a u8 and dev->reg_mib_cnt is an int and the analyzer determines
> that mib->cnt_ptr potentially can wrap around to zero if the value
> in dev->reg_mib_cnt is > 255. However, this value is never this
> large, it is always less than 256 so make reg_mib_cnt a u8.

Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian