Date: Tue, 02 Jun 2015 11:11:52 +0000 (GMT)
From: Sarbojit Ganguly <ganguly.s@samsung.com>
Subject: Re: Re: [RFC] arm: Add for atomic half word exchange
To: Arnd Bergmann <arnd@arndb.de>, Sarbojit Ganguly <ganguly.s@samsung.com>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        SUNEEL KUMAR SURIMANI <suneel@samsung.com>,
        VIKRAM MUPPARTHI <vikram.m@samsung.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "mingo@redhat.com" <mingo@redhat.com>, "hpa@zytor.com" <hpa@zytor.com>,
        "peterz@infradead.org" <peterz@infradead.org>,
        "Waiman.Long@hp.com" <Waiman.Long@hp.com>,
        "oleg@redhat.com" <oleg@redhat.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        SHARAN ALLUR <sharan.allur@samsung.com>,
        "torvalds@linux-foundation.org" <torvalds@linux-foundation.org>
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Yes,  I have enabled :

#
# Processor Type
#
CONFIG_CPU_V6=y
CONFIG_CPU_V6K=y
CONFIG_CPU_32v6=y
CONFIG_CPU_32v6K=y

and

# TI OMAP/AM/DM/DRA Family
#
CONFIG_ARCH_OMAP2=y
CONFIG_ARCH_OMAP2PLUS=y

and

#
# MX31 platforms:
#
CONFIG_MACH_MX31ADS=y
CONFIG_MACH_MX31LILLY=y
CONFIG_MACH_MX31LITE=y
CONFIG_MACH_PCM037=y
CONFIG_MACH_PCM037_EET=y
CONFIG_MACH_MX31_3DS=y
CONFIG_MACH_MX31MOBOARD=y
CONFIG_MACH_QONG=y
CONFIG_MACH_ARMADILLO5X0=y
CONFIG_MACH_KZM_ARM11_01=y
CONFIG_MACH_BUG=y
CONFIG_MACH_IMX31_DT=y

The compilation is successful.


Regards,
Sarbojit


------- Original Message -------
Sender : Arnd Bergmann<arnd@arndb.de>
Date : Jun 02, 2015 19:49 (GMT+09:00)
Title : Re: [RFC] arm: Add for atomic half word exchange

On Tuesday 02 June 2015 06:21:43 Sarbojit Ganguly wrote:
> Hello Raghavendra,
> 
> That is exactly I had done albeit from menuconfig. Basically the whole point was to make sure my patch compiles against ARM11 architectures as well. Hence I ensured the .config contains the relevant flags on. 
> 
> 

Most ARM11 implementations are ARMv6k, which has support for the instruction,
but the older ARMv6 (without k) does not. From your description, I assume
you only tested with ARMv6k, not ARMv6. Please enable the OMAP2 and IMX31
platforms to test ARMv6.

Arnd


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