linux-kernel - Re: [PATCH] tools/testing/vma: add missing function stub

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250529082359.ebf2a908e068ed3ffc8027f9@linux-foundation.org>
Date: Thu, 29 May 2025 08:23:59 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Cc: Lorenzo Stoakes via B4 Relay
 <devnull+lorenzo.stoakes.oracle.com@...nel.org>, "Liam R. Howlett"
 <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, Jann Horn
 <jannh@...gle.com>, Pedro Falcato <pfalcato@...e.de>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/testing/vma: add missing function stub

On Thu, 29 May 2025 06:39:09 +0100 Lorenzo Stoakes <lorenzo.stoakes@...cle.com> wrote:

> On Wed, May 28, 2025 at 03:52:18PM -0700, Andrew Morton wrote:
> > On Wed, 28 May 2025 15:15:39 +0100 Lorenzo Stoakes via B4 Relay <devnull+lorenzo.stoakes.oracle.com@...nel.org> wrote:
> >
> > > From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
> > >
> > > The hugetlb fix introduced in commit ee40c9920ac2 ("mm: fix copy_vma()
> > > error handling for hugetlb mappings") mistakenly did not provide a stub for
> > > the VMA userland testing, which results in a compile error when trying to
> > > build this.
> >
> > Thanks, I'll add the Fixes: and the cc:stable (because ee40c9920ac2 had
> > cc:stable).
> 
> Yeah I intentionally excluded those, as it'll lead to some backport pain
> for something that isn't shipped.
> 
> I'm not sure if we generally backport test fixes as a rule? Though I
> suppose it might be useful if somebody is investigating an issue in a
> stable kernel.

I do like to backport selftests fixes if doing so avoids bogus failures
and especially if they fix build breakage.