linux-kernel - Re: [PATCH v3] net: fix rc7's __skb_datagram

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Message-ID: <1c72ac52-9830-c2f9-5a14-d1487da8fabf@google.com>
Date: Wed, 10 Jul 2024 09:36:48 -0700 (PDT)
From: Hugh Dickins <hughd@...gle.com>
To: Paolo Abeni <pabeni@...hat.com>
cc: Hugh Dickins <hughd@...gle.com>, Sagi Grimberg <sagi@...mberg.me>, 
    Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>, 
    Thorsten Leemhuis <regressions@...mhuis.info>, regressions@...ts.linux.dev, 
    netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
    Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v3] net: fix rc7's __skb_datagram_iter()

On Wed, 10 Jul 2024, Paolo Abeni wrote:
> On Wed, 2024-07-10 at 08:36 -0700, Hugh Dickins wrote:
> > X would not start in my old 32-bit partition (and the "n"-handling looks
> > just as wrong on 64-bit, but for whatever reason did not show up there):
> > "n" must be accumulated over all pages before it's added to "offset" and
> > compared with "copy", immediately after the skb_frag_foreach_page() loop.
> > 
> > Fixes: d2d30a376d9c ("net: allow skb_datagram_iter to be called from any context")
> > Signed-off-by: Hugh Dickins <hughd@...gle.com>
> > Reviewed-by: Sagi Grimberg <sagi@...mberg.me>
> > ---
> > v3: added reviewed-by Sagi, try sending direct to Linus
> 
> V2 is already applied to the 'net' tree and will be included in our
> next 'net' PR, coming tomorrow.
> 
> It looks like the netdev bot decided it needed an holiday (or was
> fooled by the threaded submission for v2), so no notification landed on
> the ML.
> 
> @Hugh: next time please check the current tree status or patchwork
> before submitting a new revision. And please avoid submitting the new
> version in reply to a previous one, it makes things difficult for our
> CI.

Ah, great, thanks. Yes, I'd heard only silence (and was worried because,
although I only saw the effect of this on 32-bit, suspect it could cause
lots of obscure trouble more generally).

Hugh