Re: [sparc64] current git kernel networking is broken

From: Al Viro
Date: Mon Dec 07 2020 - 19:43:38 EST


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