On Tue, Jan 22, 2019 at 03:34:14PM +0000, Quentin Perret wrote: > On Monday 07 Jan 2019 at 12:26:08 (+0000), Quentin Perret wrote: > > diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c > > index d9dc2c38764a..8ef48daa62ff 100644 > > --- a/kernel/power/energy_model.c > > +++ b/kernel/power/energy_model.c > > @@ -10,6 +10,7 @@ > > > > #include <linux/cpu.h> > > #include <linux/cpumask.h> > > +#include <linux/debugfs.h> > > #include <linux/energy_model.h> > > #include <linux/sched/topology.h> > > #include <linux/slab.h> > > @@ -23,6 +24,88 @@ static DEFINE_PER_CPU(struct em_perf_domain *, em_data); > > */ > > static DEFINE_MUTEX(em_pd_mutex); > > > > +#ifdef CONFIG_DEBUG_FS > > +static struct dentry *rootdir; > > + > > +static int em_debug_create_cs(struct em_cap_state *cs, struct dentry *pd) > > +{ > > + struct dentry *d; > > + char name[24]; > > + > > + snprintf(name, sizeof(name), "cs:%lu", cs->frequency); > > + > > + d = debugfs_create_dir(name, pd); > > + if (!d) > > + return -ENOMEM; > > + > > + if (!debugfs_create_ulong("frequency", 0444, d, &cs->frequency)) > > + return -ENOMEM; > > Looking at the patches Greg just sent I assume all this is wrong.
Yes it is :) > I'll send a v2 without the 'if' all over. That would be wonderful, thanks. greg k-h