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driver-core: Add attribute argument to class_attribute show/store

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Passing the attribute to the low level IO functions allows all kinds
of cleanups, by sharing low level IO code without requiring
an own function for every piece of data.

Also drivers can extend the attributes with own data fields
and use that in the low level function.

This makes the class attributes the same as sysdev_class attributes
and plain attributes.

This will allow further cleanups in drivers.

Full tree sweep converting all users.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andi Kleen
2010-01-05 12:48:07 +01:00
committed by Greg Kroah-Hartman
parent 5fbcae57db
commit 28812fe11a
21 changed files with 87 additions and 32 deletions
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4
drivers/infiniband/core/uverbs_main.c
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@@ -691,7 +691,9 @@ static ssize_t show_dev_abi_version(struct device *device,
}
static DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
static ssize_t show_abi_version(struct class *class, char *buf)
static ssize_t show_abi_version(struct class *class,
struct class_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", IB_USER_VERBS_ABI_VERSION);
}