f4b1d0a9a3
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>
28 lines
830 B
Plaintext
28 lines
830 B
Plaintext
config STM
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tristate "System Trace Module devices"
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select CONFIGFS_FS
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select SRCU
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help
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A System Trace Module (STM) is a device exporting data in System
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Trace Protocol (STP) format as defined by MIPI STP standards.
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Examples of such devices are Intel(R) Trace Hub and Coresight STM.
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Say Y here to enable System Trace Module device support.
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config STM_DUMMY
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tristate "Dummy STM driver"
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help
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This is a simple dummy device that pretends to be an stm device
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and discards your data. Use for stm class testing.
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If you don't know what this is, say N.
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config STM_SOURCE_CONSOLE
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tristate "Kernel console over STM devices"
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help
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This is a kernel space trace source that sends kernel log
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messages to trace hosts over STM devices.
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If you want to send kernel console messages over STM devices,
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say Y.
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