linux-kernel - Re: [PATCH v6 15/20] arm64: signal: move ilp32 and lp64 common code to separated file

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Date:	Fri, 18 Dec 2015 16:48:55 +0300
From:	Yury Norov <ynorov@...iumnetworks.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linux-arm-kernel@...ts.infradead.org>, <catalin.marinas@....com>,
	<linux-kernel@...r.kernel.org>, <pinskia@...il.com>,
	<Prasun.Kapoor@...iumnetworks.com>, <schwab@...e.de>,
	<broonie@...nel.org>, <Nathan_Lynch@...tor.com>, <agraf@...e.de>,
	<klimov.linux@...il.com>, <jan.dakinevich@...il.com>,
	<ddaney.cavm@...il.com>, <bamvor.zhangjian@...wei.com>,
	<philipp.tomsich@...obroma-systems.com>, <joseph@...esourcery.com>,
	<christoph.muellner@...obroma-systems.com>
Subject: Re: [PATCH v6 15/20] arm64: signal: move ilp32 and lp64 common code
 to separated file

On Wed, Dec 16, 2015 at 05:08:35PM +0100, Arnd Bergmann wrote:
> On Wednesday 16 December 2015 00:42:41 Yury Norov wrote:
> > +               sigtramp = ka->sa.sa_restorer;
> > +#ifdef CONFIG_ARM64_ILP32
> > +       else if (is_ilp32_compat_task())
> > +               sigtramp = VDSO_SYMBOL(current->mm->context.vdso, sigtramp_ilp32);
> > +#endif
> > +       else
> > +               sigtramp = VDSO_SYMBOL(current->mm->context.vdso, sigtramp);
> > 
> 
> This is another case where I think it's more readable to remove the #ifdef,
> with no change in behavior.
> 
> 	Arnd

No actually. symbol sigtramp_ilp32 is declared in
arch/arm64/kernel/vdso-ilp32/vdso-ilp32.lds.S

And so it does not exist if CONFIG_ARM64_ILP32 is not set.
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