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authorArnd Bergmann <arnd@arndb.de>2015-12-22 17:25:17 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-05-04 14:49:16 -0700
commit68517c93716826992dc91db6a65c57c7919a3484 (patch)
treeff0d5e8bd827d3fee5a2d6c58f624d805b1310ea
parent220167e67dbf387f949ef6bb370c71867f64e29d (diff)
downloadlwn-68517c93716826992dc91db6a65c57c7919a3484.tar.gz
lwn-68517c93716826992dc91db6a65c57c7919a3484.zip
stm class: Select CONFIG_SRCU
commit 042d4460b5b4379a12f375045ff9065cf6758735 upstream. 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@arndb.de> Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hwtracing/stm/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hwtracing/stm/Kconfig b/drivers/hwtracing/stm/Kconfig
index 83e9f591a54b..e7a348807f0c 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.