From: Alex Elder <[email protected]>

My GCC-based build environment likes to call register r12 by the
name "ip" in inline asm.  Behan Webster informed me that his Clang-
based build environment likes "r12" instead.

Try to make them both happy.

Signed-off-by: Alex Elder <[email protected]>
Signed-off-by: Behan Webster <[email protected]>
---
 arch/arm/mach-bcm/bcm_kona_smc.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c
index a55a7ec..3937bd5 100644
--- a/arch/arm/mach-bcm/bcm_kona_smc.c
+++ b/arch/arm/mach-bcm/bcm_kona_smc.c
@@ -106,9 +106,14 @@ int __init bcm_kona_smc_init(void)
  * request result appropriately.  This result value is found in r0
  * when the "smc" request completes.
  */
+#ifdef __clang__
+#define R12    "r12"
+#else  /* !__clang__ */
+#define R12    "ip"    /* gcc calls r12 "ip" */
+#endif /* !__clang__ */
 static int bcm_kona_do_smc(u32 service_id, u32 buffer_phys)
 {
-       register u32 ip asm("ip");      /* Also called r12 */
+       register u32 ip asm(R12);       /* Also called r12 */
        register u32 r0 asm("r0");
        register u32 r4 asm("r4");
        register u32 r5 asm("r5");
@@ -120,7 +125,7 @@ static int bcm_kona_do_smc(u32 service_id, u32 buffer_phys)
 
        asm volatile (
                /* Make sure we got the registers we want */
-               __asmeq("%0", "ip")
+               __asmeq("%0", R12)
                __asmeq("%1", "r0")
                __asmeq("%2", "r4")
                __asmeq("%3", "r5")
-- 
1.9.1

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