Re: [PATCH] sysfs: add filter function to groups

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Cornelia Huck wrote:
> Greg KH <[email protected]> wrote:
>> On Tue, Oct 30, 2007 at 01:25:43PM -0500, James Bottomley wrote:
>>> +	for (i = 0, attr = grp->attrs; *attr; i++, attr++)
>>> +		if (grp->is_visible &&
>>> +		    grp->is_visible(kobj, *attr, i))
>>> +			sysfs_hash_and_remove(dir_sd, (*attr)->name);
>> Hm, doesn't this break for the zillions of attribute groups that do not
>> have the is_visible function set?
...
> Would it make more sense then to turn the meaning of the callback
> around?
> 
> for (...) {
> 	if (grp->mask_out && grp->mask_out(kobj, *attr, i))
> 		continue;
> 	error |= sysfs_add_file(...);
> }

		if (!grp->is_visible ||
		    grp->is_visible(kobj, *attr, i))
			add or remove();

-- 
Stefan Richter
-=====-=-=== =-=- =====
http://arcgraph.de/sr/
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