lkml.org 
[lkml]   [2004]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PATCPATCH -- add unlimited name lengths support to sysfs
On Wed, Dec 17, 2003 at 08:23:06PM -0600, Linda Xie wrote:
> Greg KH wrote:
> >On Wed, Dec 17, 2003 at 02:27:57PM -0600, Linda Xie wrote:
> >
> >>Greg KH wrote:
> >>
> >>>On Tue, Dec 16, 2003 at 05:07:22PM -0600, Linda Xie wrote:
> >>>
> >>>
> >>>>diff -Nru a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
> >>>>--- a/fs/sysfs/symlink.c Sun Dec 14 21:19:29 2003
> >>>>+++ b/fs/sysfs/symlink.c Sun Dec 14 21:19:29 2003
> >>>>@@ -42,7 +42,10 @@
> >>>> struct kobject * p = kobj;
> >>>> int length = 1;
> >>>> do {
> >>>>- length += strlen(p->name) + 1;
> >>>>+ if (p->k_name)
> >>>>+ length += strlen(p->k_name) + 1;
> >>>>+ else
> >>>>+ length += strlen(p->name) + 1;
> >>>
> >>>
> >>>Shouldn't this just be:
> >>> length += strlen(kobject_name(p)) + 1;
> >>>
> >>
> >>That is correct. But here is my concern: Some of the callers of
> >>sysfs_create_link()
> >>set p->name instead of p->k_name. So for them, the length calculated
> >>using kobject_name(p) will be incorrect. Correct me if I am wrong.
> >
> >
> >Well if a kobject only uses the .name field, .k_name will point to it
> >(see kobject_add()), so the kobject_name() call will work in the above
> >case (as it should always do.) Actually that if (p->k_name) statement
> >will always be true because of this fact :)
> >
> >This lets people like the edd driver which does:
> > snprintf(edev->kobj.name, EDD_DEVICE_NAME_SIZE, "int13_dev%02x",
> > edd[i].device);
> >still work properly. Ideally, callers like this should change to use
> >the kobject_set_name() function, but there's no rush.
> >
> >thanks,
> >
> >greg k-h
> >
>
> Thank you very much. Below is an updated patch:

Ick, that patch had no tabs :(

Care to fix your email client and send it to me again?

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:00    [W:0.052 / U:0.936 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site