Hi, On 11/16/19 1:38 AM, Stephan Müller wrote: > diff --git a/drivers/char/lrng/Kconfig b/drivers/char/lrng/Kconfig > index e6ca3acc1e48..4ccc710832ef 100644 > --- a/drivers/char/lrng/Kconfig > +++ b/drivers/char/lrng/Kconfig > @@ -169,4 +169,20 @@ config LRNG_APT_CUTOFF > default 325 if !LRNG_APT_BROKEN > default 32 if LRNG_APT_BROKEN > > +config LRNG_TESTING > + bool "Enable entropy test interface to LRNG noise source" > + select CONFIG_DEBUG_FS That should be spelled as DEBUG_FS and preferably would be "depends on" instead of 'select'. > + help > + The test interface allows a privileged process to capture > + the raw unconditioned noise that is collected by the LRNG > + for statistical analysis. Extracted noise data is not used > + to seed the LRNG. > + > + The raw noise data can be obtained using the lrng_raw > + debugfs file. Using the option lrng_testing.boot_test=1 > + the raw noise of the first 1000 entropy events since boot > + can be sampled. > + > + If unsure, say N. > + > endif # LRNG thanks. -- ~Randy
