Patch "ARM: Fix !kuser helpers case" has been added to the 3.10-stable tree

Patch "ARM: Fix !kuser helpers case" has been added to the 3.10-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ARM: Fix !kuser helpers case

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm-fix-kuser-helpers-case.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 1b16c4bcf80e319b2226a886b72b8466179c8e3a Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 6 Aug 2013 09:48:42 +0100
Subject: ARM: Fix !kuser helpers case

From: Russell King <rmk+kernel@arm.linux.org.uk>

commit 1b16c4bcf80e319b2226a886b72b8466179c8e3a upstream.

Fix yet another build failure caused by a weird set of configuration
settings:

  LD      init/built-in.o
arch/arm/kernel/built-in.o: In function `__dabt_usr':
/home/tom3q/kernel/arch/arm/kernel/entry-armv.S:377: undefined reference to `kuser_cmpxchg64_fixup'
arch/arm/kernel/built-in.o: In function `__irq_usr':
/home/tom3q/kernel/arch/arm/kernel/entry-armv.S:387: undefined reference to `kuser_cmpxchg64_fixup'

caused by:
CONFIG_KUSER_HELPERS=n
CONFIG_CPU_32v6K=n
CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG=n

Reported-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Martin Kaiser <lists@kaiser.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm/kernel/entry-armv.S |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -358,7 +358,8 @@ ENDPROC(__pabt_svc)
 	.endm
 
 	.macro	kuser_cmpxchg_check
-#if !defined(CONFIG_CPU_32v6K) && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
+#if !defined(CONFIG_CPU_32v6K) && defined(CONFIG_KUSER_HELPERS) && \
+    !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
 #ifndef CONFIG_MMU
 #warning "NPTL on non MMU needs fixing"
 #else


Patches currently in stable-queue which might be from rmk+kernel@arm.linux.org.uk are

queue-3.10/arm-fix-fiq-code-on-vivt-cpus.patch
queue-3.10/arm-fix-kuser-helpers-case.patch
queue-3.10/arm-7819-1-fiq-cast-the-first-argument-of-flush_icache_range.patch