On 7 October 2016 at 21:45, Fenghua Yu <fenghua...@intel.com> wrote: > From: Fenghua Yu <fenghua...@intel.com> > > diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c > index e9fd32e..2a21c15 100644 > --- a/drivers/base/cacheinfo.c > +++ b/drivers/base/cacheinfo.c > @@ -233,6 +233,7 @@ static ssize_t file_name##_show(struct device *dev, > \ > return sprintf(buf, "%u\n", this_leaf->object); \ > } > > +show_one(id, id); > show_one(level, level); > show_one(coherency_line_size, coherency_line_size); > show_one(number_of_sets, number_of_sets); > @@ -314,6 +315,7 @@ static ssize_t write_policy_show(struct device *dev, > return n; > } > > +static DEVICE_ATTR_RO(id); > static DEVICE_ATTR_RO(level); > static DEVICE_ATTR_RO(type); > static DEVICE_ATTR_RO(coherency_line_size); > @@ -327,6 +329,7 @@ static DEVICE_ATTR_RO(shared_cpu_list); > static DEVICE_ATTR_RO(physical_line_partition); > > static struct attribute *cache_default_attrs[] = { > + &dev_attr_id.attr, > &dev_attr_type.attr, > &dev_attr_level.attr, > &dev_attr_shared_cpu_map.attr, > @@ -350,6 +353,8 @@ cache_default_attrs_is_visible(struct kobject *kobj, > const struct cpumask *mask = &this_leaf->shared_cpu_map; > umode_t mode = attr->mode; > > + if ((attr == &dev_attr_id.attr) && this_leaf->attributes & CACHE_ID)
Can you put parentheses around 'this_leaf->attributes & CACHE_ID'? Whenever I look at expressions using bitwise operators without parentheses, I have to lookup the precedence table to make sure everything is fine. -- Nilay