On 10/8/20 12:53 AM, yulei.kernel@xxxxxxxxx wrote: > diff --git a/mm/Kconfig b/mm/Kconfig > index e1995da11cea..8a67c8933a42 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -235,6 +235,15 @@ config DMEM > Allow reservation of memory which could be dedicated usage of dmem. > It's the basics of dmemfs. > > +config DMEM_DEBUG_FS > + bool "Enable debug information for direct memory" > + depends on DMEM && DEBUG_FS > + def_bool n Drop the def_bool line. 'n' is the default anyway and the symbol is already of type bool from 2 lines above. > + help > + This option enables showing various statistics of direct memory > + in debugfs filesystem. > + > +# -- ~Randy
