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Date: Tue, 16 Sep 2014 08:52:21 -0700 From: Guenter Roeck <linux@...ck-us.net> To: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com> Cc: herrmann.der.user@...glemail.com, jdelvare@...e.de, lm-sensors@...sensors.org, linux-kernel@...r.kernel.org, boris.ostrovsky@...cle.com Subject: Re: [PATCH 1/2] hwmon, fam15h_power: Make actual power reporting conditional On Tue, Sep 16, 2014 at 10:38:38AM -0500, Aravind Gopalakrishnan wrote: > power1_input should only be reported for Fam15h, Models 00h-0fh > So, introduce a is_visible function to take care of this. > > As suggested by Guenter here: > http://marc.info/?l=linux-kernel&m=141038145616437&w=2 > > Suggested-by: Guenter Roeck <linux@...ck-us.net> > Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com> > --- > drivers/hwmon/fam15h_power.c | 19 ++++++++++++++++++- > 1 file changed, 18 insertions(+), 1 deletion(-) > > diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c > index 4a7cbfa..5ca24de 100644 > --- a/drivers/hwmon/fam15h_power.c > +++ b/drivers/hwmon/fam15h_power.c > @@ -93,13 +93,30 @@ static ssize_t show_power_crit(struct device *dev, > } > static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL); > > +static umode_t fam15h_power_is_visible(struct kobject *kobj, > + struct attribute *attr, > + int index) > +{ > + /* power1_input is only reported for Fam15h, Models 00h-0fh */ > + if (!strcmp(attr->name, "power1_input") && if (attr == &dev_attr_power1_input.attr && works just as well and is simpler. > + (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf)) { > + return 0; > + } > + > + return attr->mode; > +} > + > static struct attribute *fam15h_power_attrs[] = { > &dev_attr_power1_input.attr, > &dev_attr_power1_crit.attr, > NULL > }; > > -ATTRIBUTE_GROUPS(fam15h_power); > +static const struct attribute_group fam15h_power_group = { > + .attrs = fam15h_power_attrs, > + .is_visible = fam15h_power_is_visible, > +}; > +__ATTRIBUTE_GROUPS(fam15h_power); > > static bool fam15h_power_is_internal_node0(struct pci_dev *f4) > { > -- > 2.0.2 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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