[PATCH] powerpc/ps3: Use cpu_relax() in ps3_create_spu()

[Thorsten Blum <thorsten.blum@linux.dev>]

Use cpu_relax() to wait for the execution status SPE_EX_STATE_EXECUTED.
Drop the comments while at it.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 arch/powerpc/platforms/ps3/spu.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index e4e0b45e1b9d..8545c72385de 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -13,6 +13,7 @@
 #include <linux/export.h>
 #include <linux/io.h>
 #include <linux/mm.h>
+#include <linux/processor.h>
 
 #include <asm/spu.h>
 #include <asm/spu_priv1.h>
@@ -363,12 +364,9 @@ static int __init ps3_create_spu(struct spu *spu, void *data)
 	if (result)
 		goto fail_enable;
 
-	/* Make sure the spu is in SPE_EX_STATE_EXECUTED. */
-
-	/* need something better here!!! */
-	while (in_be64(&spu_pdata(spu)->shadow->spe_execution_status)
-		!= SPE_EX_STATE_EXECUTED)
-		(void)0;
+	while (in_be64(&spu_pdata(spu)->shadow->spe_execution_status) !=
+	       SPE_EX_STATE_EXECUTED)
+		cpu_relax();
 
 	return result;