On Thu, Jun 08, 2017 at 06:56:13PM +0200, Felix Schnizlein wrote: > Create a new sysfs attribute group called 'cpuinfo' for each > online cpu. The cleaned up cpuinfo shows up in a sysfs > subdirectory here: /sys/devices/system/cpu/cpu*/cpuinfo. > > Define preprocessor macros (CPUINFO_DEFINE_* and CPUINFO_ATTR) to make > defining new sysfs attributes for cpuinfo more easy. > > Signed-off-by: Thomas Renninger <[email protected]> > --- > drivers/base/Kconfig | 7 ++++++ > drivers/base/Makefile | 1 + > drivers/base/cpuinfo.c | 57 > ++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/cpuhotplug.h | 1 + > include/linux/cpuinfo.h | 47 ++++++++++++++++++++++++++++++++++++++ > 5 files changed, 113 insertions(+) > create mode 100644 drivers/base/cpuinfo.c > create mode 100644 include/linux/cpuinfo.h > > diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig > index d718ae4..7900e31 100644 > --- a/drivers/base/Kconfig > +++ b/drivers/base/Kconfig > @@ -224,6 +224,13 @@ config DEBUG_TEST_DRIVER_REMOVE > unusable. You should say N here unless you are explicitly looking to > test this functionality. > > +config CPUINFO_SYSFS > + bool "Enable sysfs based cpuinfo" > + depends on SYSFS && X86 > + default y > + help > + This option enables cpuinfo in sysfs.
Why would you not want this? Why make it an option at all?

