Re: [Xen-devel] [PATCH] xen: remove incorrect forward declaration

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 26 May 2016, Julien Grall wrote:
> Hi Stefano,
> 
> On 16/05/2016 12:11, Stefano Stabellini wrote:
> > On Wed, 11 May 2016, Arnd Bergmann wrote:
> > > A bugfix patch for the xen balloon driver introduced a forward
> > > declaration for a static function that is conditionally compiled,
> > > causing a warning if only the declaration but not the definition
> > > are there:
> > > 
> > > drivers/xen/balloon.c:154:13: error: 'release_memory_resource' declared
> > > 'static' but never defined [-Werror=unused-function]
> > >  static void release_memory_resource(struct resource *resource);
> > > 
> > > This removes the declaration again and instead moves the function
> > > definition to the right place, before its first caller and inside
> > > of the #ifdef protecting both.
> > > 
> > > The patch that introduced the warning is marked for stable
> > > backports, so if that gets applied to 4.4, so should this one.
> > > 
> > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> > > Fixes: dfd74a1edfab ("xen/balloon: Fix crash when ballooning on x86 32 bit
> > > PAE")
> > > Cc: stable@xxxxxxxxxxxxxxx
> > 
> > Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> 
> You have applied this patch to the branch for-linus-4.8 but not for-linus-4.7.
> Is it intentional?

Yes it is. for-linus-4.7 is based on an older version of the kernel that
doesn't have dfd74a1edfab. Linus discourages rebasing the pull request
branches. That said, the patch could still go to Linus earlies in one of
the RCs.

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