[PATCH 1/5] kexec: Fix make headers_check

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Hi Geoff,

On Sat, 2014-08-30 at 14:47 +0200, Paul Bolle wrote:
> [Added Peter Anvin.]
> 
> On Mon, 2014-08-25 at 13:22 -0400, Vivek Goyal wrote:
> > On Fri, Aug 22, 2014 at 06:39:47PM +0000, Geoff Levand wrote:
> > > Remove the unneded declaration for a kexec_load() routine.
> > > 
> > > Fixes errors like these when running 'make headers_check':
> > > 
> > > include/uapi/linux/kexec.h: userspace cannot reference function or variable defined in the kernel
> > > 
> > > Signed-off-by: Geoff Levand <geoff at infradead.org>
> > 
> > I think Paul Bolle tried to remove this in the past and maximilian
> > had objections.
> > 
> > http://lists.infradead.org/pipermail/kexec/2014-January/010902.html
> 
> I've wanted to resend my patch, perhaps with a new commit explanation,
> for quite some time now. I never got around doing that.
> 
> > I can't see that how exporting kernel prototype helps here.
> 
> It doesn't, for the reasons I've set out in
> http://lists.infradead.org/pipermail/kexec/2014-January/010900.html . In
> short: why bother using this prototype if one still needs to define the
> matching function oneself?
> 
> > kexec-tools
> > seems to be using syscall(__NR_kexec_load) directly for non-xen case. So
> > I would be fine with removing this definition. Just trying to make sure
> > that it does not break any other library or users of this declaration.
> 
> Obviously, this can only break compiling those libraries, or other
> users. It can't break already compiled binaries. Besides I don't think
> those libraries, etc actually exist. Maximilian mentioned klibc in
> January, but I wasn't able to find a version of klibc that cared about
> this prototype. No one pointed me at a version that does (or any other
> library, etc., for that matter).
> 
> (If we do decide to keep this prototype, we should special case this
> prototype in headers_check.pl just to silence the build.)
> 
> The above can be summarized like this:
>     Acked-by: Paul Bolle <pebolle at tiscali.nl>

It seems not much happened after I added my Acked-by. I assume you still
want to get this merged. Is that correct?


Paul Bolle




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