linux-kernel - Re: linux-next: build failure after merge of the crypto tree

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Message-ID: <20231031131418.52af79d0@kernel.org>
Date:   Tue, 31 Oct 2023 13:14:18 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        David Miller <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Networking <netdev@...r.kernel.org>,
        Linux Crypto List <linux-crypto@...r.kernel.org>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Dmitry Safonov <dima@...sta.com>,
        Francesco Ruggeri <fruggeri@...sta.com>,
        Salam Noureddine <noureddine@...sta.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the crypto tree

On Mon, 30 Oct 2023 21:51:57 -0700 Eric Biggers wrote:
> On Mon, Oct 30, 2023 at 03:02:43PM -0700, Jakub Kicinski wrote:
> > On Mon, 30 Oct 2023 13:23:53 +0800 Herbert Xu wrote:  
> > > If we simply apply this patch to the netdev tree then everything
> > > should work at the next merge window.  But perhaps you could change
> > > the patch description to say something like remove the obsolete
> > > crypto_hash_alignmask.  It's not important though.  
> > 
> > I'm happy to massage the commit message and apply the fix to net.
> > But is it actually 100% correct to do that? IOW is calling
> > crypto_ahash_alignmask() already not necessary in net-next or does
> > it only become unnecessary after some prep work in crypto-next?
> > 
> > We can tell Linus to squash this fix into the merge of either
> > crypto-next or net-next, I'm pretty sure he'd be okay with that..  
> 
> It's safe to fold the patch into net-next.  It actually looks like a bug to be
> using the alignmask in the way that net/ipv4/tcp_ao.c is using it.  You don't
> want to be erroring out just because the algorithm declared an alignmask.

Thanks Eric! Applied as commit f2fbb9081123 ("net: tcp: remove call to
obsolete crypto_ahash_alignmask()") to net-next. I'll respin our PR
after some sanity checking.