Re: [PATCH net v4] net/ncsi: handle overflow when incrementing mac address
From: Jakub Kicinski
Date: Tue Apr 23 2019 - 21:44:40 EST
On Wed, 24 Apr 2019 01:43:32 +0000, Tao Ren wrote:
> Previously BMC's MAC address is calculated by simply adding 1 to the
> last byte of network controller's MAC address, and it produces incorrect
> result when network controller's MAC address ends with 0xFF.
>
> The problem can be fixed by calling eth_addr_inc() function to increment
> MAC address; besides, the MAC address is also validated before assigning
> to BMC.
>
> Fixes: cb10c7c0dfd9 ("net/ncsi: Add NCSI Broadcom OEM command")
> Signed-off-by: Tao Ren <taoren@xxxxxx>
Acked-by: Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx>