linux-kernel - [PATCH] m68k: skip futex_atomic_cmpxchg

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Message-ID: <alpine.LNX.2.00.1403061006440.5525@nippy.intranet>
Date:	Thu, 6 Mar 2014 10:29:27 +1100 (EST)
From:	Finn Thain <fthain@...egraphics.com.au>
To:	linux-kernel <linux-kernel@...r.kernel.org>
cc:	Thomas Gleixner <tglx@...utronix.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] m68k: skip futex_atomic_cmpxchg_inatomic() test


Skip the futex_atomic_cmpxchg_inatomic() test in futex_init(). It causes a 
fatal exception on 68030 (and presumably 68020 also).

Signed-off-by: Finn Thain <fthain@...egraphics.com.au>
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Index: linux-m68k/arch/m68k/Kconfig
===================================================================
--- linux-m68k.orig/arch/m68k/Kconfig
+++ linux-m68k/arch/m68k/Kconfig
@@ -17,6 +17,7 @@ config M68K
 	select FPU if MMU
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
+	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_REL
 	select MODULES_USE_ELF_RELA
--
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