linux-kernel - [PATCH v2 3/5] stm: select CONFIG

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Message-Id: <1448454875-21189-4-git-send-email-alexander.shishkin@linux.intel.com>
Date:	Wed, 25 Nov 2015 14:34:33 +0200
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: [PATCH v2 3/5] stm: select CONFIG_SRCU

From: Arnd Bergmann <arnd@...db.de>

The newly added STM code uses SRCU, but does not ensure that
this code is part of the kernel:

drivers/built-in.o: In function `stm_source_link_show':
include/linux/srcu.h:221: undefined reference to `__srcu_read_lock'
include/linux/srcu.h:238: undefined reference to `__srcu_read_unlock'
drivers/built-in.o: In function `stm_source_link_drop':
include/linux/srcu.h:221: undefined reference to `__srcu_read_lock'
include/linux/srcu.h:238: undefined reference to `__srcu_read_unlock'

This adds a Kconfig 'select' statement like all the other SRCU using
drivers have.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices")
Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
---
 drivers/hwtracing/stm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwtracing/stm/Kconfig b/drivers/hwtracing/stm/Kconfig
index 4c13762f2b..e0ac753955 100644
--- a/drivers/hwtracing/stm/Kconfig
+++ b/drivers/hwtracing/stm/Kconfig
@@ -1,6 +1,7 @@
 config STM
 	tristate "System Trace Module devices"
 	select CONFIGFS_FS
+	select SRCU
 	help
 	  A System Trace Module (STM) is a device exporting data in System
 	  Trace Protocol (STP) format as defined by MIPI STP standards.
-- 
2.6.2

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