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| author | YueHaibing <yuehaibing@huawei.com> | 2021-05-26 16:10:19 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2021-07-05 09:23:31 +0200 |
| commit | 2060061767c5d3fd5d2477c8cf3407efeeabe8e0 (patch) | |
| tree | ad242a3e591a28d64247e77df7abafc1e1a33306 /drivers/xen/xenbus/xenbus_probe.c | |
| parent | Linux 5.13 (diff) | |
| download | linux-2060061767c5d3fd5d2477c8cf3407efeeabe8e0.tar.xz linux-2060061767c5d3fd5d2477c8cf3407efeeabe8e0.zip | |
xen: Use DEVICE_ATTR_*() macro
Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210526141019.13752-1-yuehaibing@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 97f0d234482d..33d09b3f6211 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -207,7 +207,7 @@ void xenbus_otherend_changed(struct xenbus_watch *watch, EXPORT_SYMBOL_GPL(xenbus_otherend_changed); #define XENBUS_SHOW_STAT(name) \ -static ssize_t show_##name(struct device *_dev, \ +static ssize_t name##_show(struct device *_dev, \ struct device_attribute *attr, \ char *buf) \ { \ @@ -215,14 +215,14 @@ static ssize_t show_##name(struct device *_dev, \ \ return sprintf(buf, "%d\n", atomic_read(&dev->name)); \ } \ -static DEVICE_ATTR(name, 0444, show_##name, NULL) +static DEVICE_ATTR_RO(name) XENBUS_SHOW_STAT(event_channels); XENBUS_SHOW_STAT(events); XENBUS_SHOW_STAT(spurious_events); XENBUS_SHOW_STAT(jiffies_eoi_delayed); -static ssize_t show_spurious_threshold(struct device *_dev, +static ssize_t spurious_threshold_show(struct device *_dev, struct device_attribute *attr, char *buf) { @@ -231,9 +231,9 @@ static ssize_t show_spurious_threshold(struct device *_dev, return sprintf(buf, "%d\n", dev->spurious_threshold); } -static ssize_t set_spurious_threshold(struct device *_dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t spurious_threshold_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct xenbus_device *dev = to_xenbus_device(_dev); unsigned int val; @@ -248,8 +248,7 @@ static ssize_t set_spurious_threshold(struct device *_dev, return count; } -static DEVICE_ATTR(spurious_threshold, 0644, show_spurious_threshold, - set_spurious_threshold); +static DEVICE_ATTR_RW(spurious_threshold); static struct attribute *xenbus_attrs[] = { &dev_attr_event_channels.attr, |