Re: [PATCH v2] powerpc/32: fix csum_partial_copy_generic()

Christophe Leroy [off-list ref] writes:

Le 05/08/2016 à 08:57, Michael Ellerman a écrit :

quoted

Alessio Igor Bogani [off-list ref] writes:

quoted

On 4 August 2016 at 05:53, Scott Wood [off-list ref] wrote:

quoted

On Tue, 2016-08-02 at 10:07 +0200, Christophe Leroy wrote:

quoted

commit 7aef4136566b0 ("powerpc32: rewrite csum_partial_copy_generic()
based on copy_tofrom_user()") introduced a bug when destination
address is odd and initial csum is not null

The purpose of this patch was not to address Alessio's issue, but to fix 
a huge issue on checksum calculation which induces breakdown of TCP 
connections.

I think it is worth commiting it upstream and on impacted stable 
releases, allthought we don't have yet identified the issue Alessio's has.

OK. I'll put it back into fixes on Monday if I haven't heard anything
further.

cheers