linux-kernel - Re: [PATCH] ARM: fix vdsomunge depends on glibc specific byteswap.h

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Date:	Wed, 30 Sep 2015 13:17:02 -0500
From:	Nathan Lynch <Nathan_Lynch@...tor.com>
To:	"H. Nikolaus Schaller" <hns@...delico.com>
CC:	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Szabolcs Nagy <szabolcs.nagy@....com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Will Deacon <will.deacon@....com>,
	Marek Belisko <marek@...delico.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: fix vdsomunge depends on glibc specific byteswap.h

On 09/30/2015 12:47 PM, H. Nikolaus Schaller wrote:
> 
> Am 30.09.2015 um 19:37 schrieb Nathan Lynch <Nathan_Lynch@...tor.com>:
>>  Why not just use a generic
>> implementation like is found in mips' elf2ecoff?
> 
> Do you have a reference?
> I can't find byte swapping in
> 
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/mips/boot/elf2ecoff.c?id=refs/tags/v4.3-rc3

See the swab16 and swab32 macros (yes, "swab" not "swap").

Or the __constant_swab* macros in include/linux/uapi/swab.h.

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