Build error in torvalds kernel 3.11 for omap2plus

[Guenter Roeck]

On Mon, Sep 09, 2013 at 09:31:41PM +0100, Russell King - ARM Linux wrote:
> On Mon, Sep 09, 2013 at 09:03:48AM -0700, Guenter Roeck wrote:
> > Unfortunately, there are more problems.
> > 
> > arch/arm/kernel/built-in.o: In function `ret_fast_syscall':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-common.S:42: undefined reference to `user_enter'
> > arch/arm/kernel/built-in.o: In function `no_work_pending':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-common.S:77: undefined reference to `user_enter'
> > arch/arm/kernel/built-in.o: In function `vector_swi':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-common.S:376: undefined reference to `user_exit'
> > arch/arm/kernel/built-in.o: In function `__dabt_usr':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-armv.S:365: undefined reference to `user_exit'
> > arch/arm/kernel/built-in.o: In function `__irq_usr':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-armv.S:375: undefined reference to `user_exit'
> > arch/arm/kernel/built-in.o: In function `__und_usr':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-armv.S:388: undefined reference to `user_exit'
> > arch/arm/kernel/built-in.o: In function `__pabt_usr':
> > /home/groeck/src/linux-stable/arch/arm/kernel/entry-armv.S:662: undefined reference to `user_exit'
> 
> These are due to ad65782fba50 (context_tracking: Optimize main APIs off case
> with static key) converting these functions to be inline.
> 
> No idea what the fix for this is other than reverting the change.  Any
> ideas Frederic?
> 
I am all for reverting unless this can be fixed quickly.
AFAICS this breaks all arm builds if CONFIG_CONTEXT_TRACKING is enabled.

Guenter