[microblaze-linux] [PATCH] microblaze: generic atomic64 support

This tiny patch adds generic atomic64 support for the Microblaze  
architecture. The patch
is against the latest linux-2.6-microblaze tree. It also fixes the  
kernel build for microblaze:

   CC      kernel/trace/trace_clock.o
kernel/trace/trace_clock.c:117: error: expected '=', ',', ';', 'asm'  
or '__attribute__' before 'trace_counter'
kernel/trace/trace_clock.c: In function 'trace_clock_counter':
kernel/trace/trace_clock.c:126: error: implicit declaration of  
function 'atomic64_add_return'
kernel/trace/trace_clock.c:126: error: 'trace_counter' undeclared  
(first use in this function)
kernel/trace/trace_clock.c:126: error: (Each undeclared identifier is  
reported only once
kernel/trace/trace_clock.c:126: error: for each function it appears in.)
make[2]: *** [kernel/trace/trace_clock.o] Error 1
make[1]: *** [kernel/trace] Error 2
make: *** [kernel] Error 2

Signed-off-by: Ariane Keller <ariane.keller@...>
Signed-off-by: Daniel Borkmann <daniel.borkmann@...>

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 74f23a4..c8d6efb 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
 <at>  <at>  -19,6 +19,7  <at>  <at>  config MICROBLAZE
  	select GENERIC_IRQ_SHOW
  	select GENERIC_PCI_IOMAP