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dax: Simplify root read-only definition for the 'resource' attribute

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Rather than update the permission in ->is_visible() set the permission
directly at declaration time.

Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/157309904959.1582359.7281180042781955506.stgit@dwillia2-desk3.amr.corp.intel.com
This commit is contained in:
Dan Williams 2019-11-12 17:12:38 -08:00
parent 770619a951
commit 153dd28647
1 changed files with 1 additions and 3 deletions
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4
drivers/dax/bus.c
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@ -309,7 +309,7 @@ static ssize_t resource_show(struct device *dev,
return sprintf(buf, "%#llx\n", dev_dax_resource(dev_dax));
}
static DEVICE_ATTR_RO(resource);
static DEVICE_ATTR(resource, 0400, resource_show, NULL);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf)
@ -329,8 +329,6 @@ static umode_t dev_dax_visible(struct kobject *kobj, struct attribute *a, int n)
if (a == &dev_attr_target_node.attr && dev_dax_target_node(dev_dax) < 0)
return 0;
if (a == &dev_attr_resource.attr)
return 0400;
return a->mode;
}