linux-kernel - [PATCH] powerpc/powernv: Select CONFIG

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Date:	Sat, 27 Dec 2014 12:17:44 -0500
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>,
	Michael Neuling <mikey@...ling.org>,
	linuxppc-dev@...ts.ozlabs.org (open list:LINUX FOR POWERPC...),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] powerpc/powernv: Select CONFIG_PRINTK to fix build failure

In an allnoconfig we get the following build failure:

arch/powerpc/platforms/built-in.o: In function `.__machine_initcall_powernv_opal_init':
opal.c:(.init.text+0x468): undefined reference to `.log_buf_addr_get'
opal.c:(.init.text+0x474): undefined reference to `.log_buf_len_get'
make: *** [vmlinux] Error 1

This happens because powernv requires printk() support. Enable it in the config
file.

Signed-off-by: Pranith Kumar <bobby.prani@...il.com>
---
 arch/powerpc/platforms/powernv/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 45a8ed0..be4f340 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -18,6 +18,7 @@ config PPC_POWERNV
 	select CPU_FREQ_GOV_ONDEMAND
 	select CPU_FREQ_GOV_CONSERVATIVE
 	select PPC_DOORBELL
+	select PRINTK
 	default y
 
 config PPC_POWERNV_RTAS
-- 
1.9.1

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