Re: [RFC net-next v2 3/5] net: phy: nxp-c45-tja11xx add MACsec support

Radu Pirea (OSS)
2023-08-25T13:44:28Z

On 25.08.2023 16:29, Andrew Lunn wrote:

>>> +static bool nxp_c45_rx_sc_valid(struct nxp_c45_secy *phy_secy,
>>> + struct macsec_rx_sc *rx_sc)
>>> +{
>>> + u16 port = (__force u64)rx_sc->sci >> (ETH_ALEN * 8);
>>
>> u64 sci = be64_to_cpu((__force __be64)rx_sc->sci);
>
> why is the __force needed? What happens with a normal cast?
>

Sparse will print warnings if __force is missing.

> Andrew
>

--
Radu P.