Re: [PATCH net-next v3 1/4] net: eth: fbnic: Fix addr validation in pcs write

[Mike Marciniszyn <mike.marciniszyn@gmail.com>]

On Thu, May 07, 2026 at 09:20:53AM +0200, Paolo Abeni wrote:
> On 5/7/26 3:58 AM, Jakub Kicinski wrote:
> > On Mon,  4 May 2026 09:58:12 -0400 mike.marciniszyn@gmail.com wrote:
> >> From: "Mike Marciniszyn (Meta)" <mike.marciniszyn@gmail.com>
> >>
> >> The DW IP has two distinct PCS address ranges cooresponding
> >> to the C45 PCS registers.
> >>
> >> The shim translates the PCS addr/regno into specific CSR writes
> >> into one of those two zero-relative.
> >>
> >> This patch fixes a one off in the test that could allow an invalid
> >> CSR write if an addr == 2 was called.
> >>
> >> This patch contains a fix for addr validation in fbnic_mdio_write_pcs()
> >> to only return actual CSR reads for addr 0 and 1.
> >>
> >> There are as of yet, no real impact for the bug as no PCS writes are
> >> not yet present.
> >
> > Hi Paolo! Was there a reason / do you recall why this was not applied?
> > (I dropped it from patchwork now. If the omission was accidental it has
> > to be reposted)
>
> Darn, limited capacity here plus re-submission glitch: v3 had a slightly
> different cover title (due to typo) WRT v2 so PW did not mark v2 as
> superseded. I process patches via PW in sequence, when I reached v2 I
> considered the sashiko comment not blocking and I apply it. I was unable
> to reach v3 until now.
>
> TL;DR: @Mike: please re-submit 1/4 and double check there are not other
> differences between v2 and v3 - otherwise more patches needed. Also
> please ensure you keep the series title consistent among revision, or at
> least manually remove old revisions from PW upon resubmission.
>
> Thanks,
>
> Paolo
>

I double checked v2 -> v3 for the other patches are ok.

I'm just now resending 1/4 of the series.  I reworded the commit message
to fix the AI review comment.

Mike