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powerpc: Do not call prink when CONFIG_PRINTK is not defined

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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>
This commit is contained in:
Márton Németh 2010-03-06 22:43:55 +00:00 committed by Benjamin Herrenschmidt
parent 409d241b7b
commit 09156a7a40
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/kernel/head_fsl_booke.S
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@ -884,13 +884,17 @@ KernelSPE:
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 */