On Sat, 2015-03-07 at 13:35 +0200, Alexander Shishkin wrote: > Documentation/ABI/testing/configfs-stp-policy | 44 ++ git am whined about this file when I tried to apply this patch: Applying: stm class: Introduce an abstraction for System Trace Module devices [...]/.git/rebase-apply/patch:77: new blank line at EOF. > Documentation/ABI/testing/sysfs-class-stm | 14 + > Documentation/ABI/testing/sysfs-class-stm_source | 11 + > Documentation/trace/stm.txt | 77 +++ > drivers/Kconfig | 2 + > drivers/Makefile | 1 + > drivers/stm/Kconfig | 8 + > drivers/stm/Makefile | 3 + > drivers/stm/core.c | 839 +++++++++++++++++++++++ > drivers/stm/policy.c | 470 +++++++++++++ > drivers/stm/stm.h | 77 +++ > include/linux/stm.h | 87 +++ > include/uapi/linux/stm.h | 47 ++ > --- /dev/null > +++ b/drivers/stm/Kconfig > @@ -0,0 +1,8 @@ > +config STM > + tristate "System Trace Module devices" > + help > + A System Trace Module (STM) is a device exporting data in System > + Trace Protocol (STP) format as defined by MIPI STP standards. > + Examples of such devices are Intel Trace Hub and Coresight STM. > + > + Say Y here to enable System Trace Module device support. > diff --git a/drivers/stm/Makefile b/drivers/stm/Makefile > new file mode 100644 > index 0000000000..adec701649 > --- /dev/null > +++ b/drivers/stm/Makefile > @@ -0,0 +1,3 @@ > +obj-$(CONFIG_STM) += stm_core.o > + > +stm_core-y := core.o policy.o I tried to compile this as a module: $ make -C ../.. M=$PWD CONFIG_STM=m stm_core.ko make: Entering directory `[...]' LD [M] [...]/drivers/stm/stm_core.o [...]/drivers/stm/policy.o: In function `stp_configfs_init': policy.c:(.text+0x5f0): multiple definition of `init_module' [...]/drivers/stm/core.o:core.c:(.init.text+0x0): first defined here make[1]: *** [[...]/drivers/stm/stm_core.o] Error 1 make: *** [stm_core.ko] Error 2 make: Leaving directory `[...]' I think that's because postcore_initcall(stm_core_init); in core.c becomes module_init(stm_core_init); if this driver is compiled as a module. And that will clash with module_init(stp_configfs_init); in policy.c. Am I missing something obvious or should STM not be a tristate symbol? Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html