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PCI: sysfs: Change DEVICE_ATTR() to DEVICE_ATTR_WO()

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DEVICE_ATTR() should only be used when files have unusual permissions.
Change DEVICE_ATTR() with '0220' write-only permissions to
DEVICE_ATTR_WO(), e.g.,

  - static DEVICE_ATTR(_name, (S_IWUSR | S_IWGRP), NULL, _store);
  + static DEVICE_ATTR_WO(_name);

Since _store is no longer passed, make the _name passed by DEVICE_ATTR_WO()
and the related _name##_store() name match with each other, e.g.,

  DEVICE_ATTR_WO(bus_rescan) must be able to call bus_rescan_store()

Link: https://lore.kernel.org/r/20190815153352.86143-4-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
This commit is contained in:
Kelsey Skunberg 2019-08-15 09:33:52 -06:00 committed by Bjorn Helgaas
parent 8bdfa145f5
commit 4e2b79436e
1 changed files with 6 additions and 6 deletions
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12
drivers/pci/pci-sysfs.c
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@ -464,7 +464,7 @@ static ssize_t dev_rescan_store(struct device *dev,
}
return count;
}
static DEVICE_ATTR(rescan, (S_IWUSR | S_IWGRP), NULL, dev_rescan_store);
static DEVICE_ATTR_WO(dev_rescan);
static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@ -481,9 +481,9 @@ static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR_IGNORE_LOCKDEP(remove, (S_IWUSR | S_IWGRP), NULL,
remove_store);
static ssize_t dev_bus_rescan_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t bus_rescan_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long val;
struct pci_bus *bus = to_pci_bus(dev);
@ -501,7 +501,7 @@ static ssize_t dev_bus_rescan_store(struct device *dev,
}
return count;
}
static DEVICE_ATTR(bus_rescan, (S_IWUSR | S_IWGRP), NULL, dev_bus_rescan_store);
static DEVICE_ATTR_WO(bus_rescan);
#if defined(CONFIG_PM) && defined(CONFIG_ACPI)
static ssize_t d3cold_allowed_store(struct device *dev,
@ -1620,7 +1620,7 @@ static umode_t pci_dev_attrs_are_visible(struct kobject *kobj,
static struct attribute *pci_dev_hp_attrs[] = {
&dev_attr_remove.attr,
&dev_attr_rescan.attr,
&dev_attr_dev_rescan.attr,
NULL,
};