This fixes a a build failure for 2.6.31-rc4-rt1 (ARCH=arm,
msm_defconfig):

  CC      arch/arm/mach-msm/proc_comm.o
/ptx/work/octopus/WORK_2_A/ukl/gsrc/linux-2.6/arch/arm/mach-msm/proc_comm.c:43: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__cacheline_aligned_in_smp'
/ptx/work/octopus/WORK_2_A/ukl/gsrc/linux-2.6/arch/arm/mach-msm/proc_comm.c: In function 'msm_proc_comm':
/ptx/work/octopus/WORK_2_A/ukl/gsrc/linux-2.6/arch/arm/mach-msm/proc_comm.c:76: error: 'proc_comm_lock' undeclared (first use in this function)
/ptx/work/octopus/WORK_2_A/ukl/gsrc/linux-2.6/arch/arm/mach-msm/proc_comm.c:76: error: (Each undeclared identifier is reported only once
/ptx/work/octopus/WORK_2_A/ukl/gsrc/linux-2.6/arch/arm/mach-msm/proc_comm.c:76: error: for each function it appears in.)

Signed-off-by: Uwe Kleine-König <redacted>
Cc: Russell King <redacted>
Cc: Brian Swetland <redacted>
---
 arch/arm/mach-msm/proc_comm.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-msm/proc_comm.c b/arch/arm/mach-msm/proc_comm.c
index 915ee70..e825c36 100644
--- a/arch/arm/mach-msm/proc_comm.c
+++ b/arch/arm/mach-msm/proc_comm.c

@@ -14,6 +14,7 @@
  *
  */
 
+#include <linux/cache.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/io.h>

-- 
1.6.3.3