| From 042d4460b5b4379a12f375045ff9065cf6758735 Mon Sep 17 00:00:00 2001 |
| From: Arnd Bergmann <arnd@arndb.de> |
| Date: Tue, 22 Dec 2015 17:25:17 +0200 |
| Subject: stm class: Select CONFIG_SRCU |
| |
| From: Arnd Bergmann <arnd@arndb.de> |
| |
| 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> |
| |
| --- |
| drivers/hwtracing/stm/Kconfig | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- 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. |
