linux-kernel - Re: [PATCH 01/22] x86/paravirt: Fix callee-saved function ELF sizes

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Date:   Mon, 15 Jul 2019 07:43:27 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Juergen Gross <jgross@...e.com>
Cc:     x86@...nel.org, Arnd Bergmann <arnd@...db.de>,
        Jann Horn <jannh@...gle.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/22] x86/paravirt: Fix callee-saved function ELF sizes

On Mon, Jul 15, 2019 at 06:58:36AM +0200, Juergen Gross wrote:
> On 15.07.19 02:36, Josh Poimboeuf wrote:
> > The __raw_callee_save_*() functions have an ELF symbol size of zero,
> > which confuses objtool and other tools.
> > 
> > Fixes a bunch of warnings like the following:
> > 
> >    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pte_val() is missing an ELF size annotation
> >    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pgd_val() is missing an ELF size annotation
> >    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pte() is missing an ELF size annotation
> >    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pgd() is missing an ELF size annotation
> > 
> > Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
> 
> Reviewed-by: Juergen Gross <jgross@...e.com>

Thanks!

BTW, Alok's email address from the MAINTAINERS file seems to be bouncing.

-- 
Josh