On Thu, 12 Aug 2021 12:05:38 +0100 Marc Zyngier wrote:

quoted

A possible fix, which takes in account also the XDP headroom for
stmmac_rx_buf1_len() only could be (only compile tested, I don't have
the hardware now):  

However, this doesn't fix my issue. I still get all sort of
corruption. Probably stmmac_rx_buf2_len() also need adjusting (it has
a similar logic as its buf1 counterpart...)

Unless you can fix it very quickly, and given that we're towards the
end of the cycle, I'd be more comfortable if we reverted this patch.

Any luck investigating this one? The rc6 announcement sounds like there
may not be that many more rc releases for 5.14.