From: "Németh Márton" <nm127@freemail.hu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH] powerpc: do not call printk when CONFIG_PRINTK is not defined
Date: Fri, 12 Mar 2010 07:56:02 +0100 [thread overview]
Message-ID: <4B99E582.5030705@freemail.hu> (raw)
In-Reply-To: <4B93674B.4090708@freemail.hu>
From: Márton Németh <nm127@freemail.hu>
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>
---
Just a typo was fixed in the title.
---
diff -upr linux-2.6.33.orig/arch/powerpc/kernel/head_fsl_booke.S linux/arch/powerpc/kernel/head_fsl_booke.S
--- linux-2.6.33.orig/arch/powerpc/kernel/head_fsl_booke.S 2010-02-24 19:52:17.000000000 +0100
+++ linux/arch/powerpc/kernel/head_fsl_booke.S 2010-03-07 09:28:05.000000000 +0100
@@ -887,13 +887,17 @@ 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 */
prev parent reply other threads:[~2010-03-12 6:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-07 8:43 [PATCH] powerpc: do not call prink when CONFIG_PRINTK is not defined Németh Márton
2010-03-12 6:56 ` Németh Márton [this message]
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