linux-kernel - Re: [sparc64] current git kernel networking is broken

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Date:   Tue, 8 Dec 2020 14:25:38 +0300
From:   Anatoly Pugachev <matorola@...il.com>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Sparc kernel list <sparclinux@...r.kernel.org>,
        debian-sparc <debian-sparc@...ts.debian.org>,
        Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [sparc64] current git kernel networking is broken

On Tue, Dec 8, 2020 at 3:42 AM Al Viro <viro@...iv.linux.org.uk> wrote:
>
> On Tue, Dec 08, 2020 at 03:09:47AM +0300, Anatoly Pugachev wrote:
> > Hello!
> >
> > Sorry for the late report, being 5.10-rc7 is out, but current git
> > kernel (git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git)
> > is broken with the networking. It affects my openvpn tunnel and even
> > internet networking.
> >
> > ping to a local ethernet network (i.e. gateway ping) works, but i
> > cannot download files from the internet.
> > openvpn tunnel does not work.
>
> <eyes commit in question>
> <swears>
> Could you check if the following typo fix is sufficient for your
> reproducer?
>
> diff --git a/arch/sparc/lib/csum_copy.S b/arch/sparc/lib/csum_copy.S
> index 0c0268e77155..d839956407a7 100644
> --- a/arch/sparc/lib/csum_copy.S
> +++ b/arch/sparc/lib/csum_copy.S
> @@ -71,7 +71,7 @@
>  FUNC_NAME:             /* %o0=src, %o1=dst, %o2=len */
>         LOAD(prefetch, %o0 + 0x000, #n_reads)
>         xor             %o0, %o1, %g1
> -       mov             1, %o3
> +       mov             -1, %o3
>         clr             %o4
>         andcc           %g1, 0x3, %g0
>         bne,pn          %icc, 95f


Thanks Al, this patch fixes networking for me.