linux-kernel - Re: [PATCHv3 4/7] powerpc64: Add .opd based function descriptor dereference

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Date:   Thu, 19 Oct 2017 15:45:04 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        James Bottomley <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jessica Yu <jeyu@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        linux-ia64@...r.kernel.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv3 4/7] powerpc64: Add .opd based function descriptor
 dereference

On (10/04/17 11:21), Petr Mladek wrote:
[..]
> > +#ifdef PPC64_ELF_ABI_v1
> > +unsigned long dereference_module_function_descriptor(struct module *mod,
> > +						     unsigned long addr)
> > +{
> > +	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
> > +		return addr;
> > +
> > +	return dereference_function_descriptor(addr);
> > +}
> > +#endif /* PPC64_ELF_ABI_v1 */
> 
> I would personally move this up in the source file. It is related to
> the definition of func_desc() and other functions that are
> also PPC_ELF_ABI-specific.
> 
> Otherwise, it looks good to me.
> 
> Reviewed-by: Petr Mladek <pmladek@...e.com>

OK, will move.

	-ss