linux-kernel - Re: [RFC] arm: Add for atomic half word exchange

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Message-ID: <7355143.I0WcWX47Z6@wuerfel>
Date:	Fri, 05 Jun 2015 14:33:33 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	ganguly.s@...sung.com
Cc:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	SUNEEL KUMAR SURIMANI <suneel@...sung.com>,
	VIKRAM MUPPARTHI <vikram.m@...sung.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"peterz@...radead.org" <peterz@...radead.org>,
	"Waiman.Long@...com" <Waiman.Long@...com>,
	"oleg@...hat.com" <oleg@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	SHARAN ALLUR <sharan.allur@...sung.com>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: [RFC] arm: Add for atomic half word exchange

On Friday 05 June 2015 01:17:13 Sarbojit Ganguly wrote:
> Since the compilation is also a success for CONFIG_CPU_V6 with the patch,
> I think we're good to go.

I'm not following your logic. Did you create a new patch that addresses
compilation with CONFIG_CPU_V6?

The original patch should cause a compile error on v6, if it does not,
you either have a broken assembler or you forgot to enable the code
that uses these instructions. Neither of them would be a reason to
merge the patch. Please explain what is going on.

	Arnd
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