Re: [PATCH iwl-next v4 5/9] igc: Add support for frame preemption verification

[Abdul Rahim, Faizal]

On 17/2/2025 7:31 pm, Simon Horman wrote:
> On Mon, Feb 10, 2025 at 02:02:03AM -0500, Faizal Rahim wrote:
>
> ...
>
> > diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.c b/drivers/net/ethernet/intel/igc/igc_tsn.c
>
> ...
>
> > +bool igc_fpe_transmitted_smd_v(union igc_adv_tx_desc *tx_desc)
> > +{
> > +	u8 smd = FIELD_GET(IGC_TXD_POPTS_SMD_MASK, tx_desc->read.olinfo_status);
>
> olininfo_status is little-endian, so I think it needs
> to be converted to host byte order when used as an
> argument to FIELD_GET().
>
> Flagged by Sparse.
>
> > +
> > +	return smd == SMD_V;
> > +}
>
> ...
>
> > diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.h b/drivers/net/ethernet/intel/igc/igc_tsn.h
>
> ...
>
> > +static inline void igc_fpe_lp_event_status(union igc_adv_rx_desc *rx_desc,
> > +					   struct ethtool_mmsv *mmsv)
> > +{
> > +	__le32 status_error = le32_to_cpu(rx_desc->wb.upper.status_error);
>
> It looks like the type of status_error should be a host byte order integer,
> such as u32.
>
> Also flagged by Sparse.

Thanks for spotting these, I'll update them.