powerpc: Do not call prink when CONFIG_PRINTK is not defined
When printk() is disabled (CONFIG_PRINTK) at menu item
General setup
-> Configure standard kernel features (for small systems)
-> Enable support for printk
then there should be no printk() calls at all.
Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index a7cf493..7255265 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -884,13 +884,17 @@
lwz r3,_MSR(r1)
oris r3,r3,MSR_SPE@h
stw r3,_MSR(r1) /* enable use of SPE after return */
+#ifdef CONFIG_PRINTK
lis r3,87f@h
ori r3,r3,87f@l
mr r4,r2 /* current */
lwz r5,_NIP(r1)
bl printk
+#endif
b ret_from_except
+#ifdef CONFIG_PRINTK
87: .string "SPE used in kernel (task=%p, pc=%x) \n"
+#endif
.align 4,0
#endif /* CONFIG_SPE */