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SubjectPATCPATCH -- add unlimited name lengths support to sysfs
Hi All,

In the development of RPA PCI Hot Plug Controller driver, I have found
it is needed to create some kernel objects which have more than 20
(KOBJECT_NAME_SIZE) charaters in their name strings. At a later time the
names will be used for creating some symlinks. The attached patch adds
unlimited name lengths support to sysfs symlink.c.

Comments are welcome.

Linda


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;
p = p->parent;
} while (p);
return length;
@@ -54,11 +57,20 @@

--length;
for (p = kobj; p; p = p->parent) {
- int cur = strlen(p->name);
-
+ int cur;
+ char *name;
+
+ if (p->k_name) {
+ cur = strlen(p->k_name);
+ name = p->k_name;
+ }
+ else {
+ cur = strlen(p->name);
+ name = p->name;
+ }
/* back up enough to print this bus id with '/' */
length -= cur;
- strncpy(buffer + length,p->name,cur);
+ strncpy(buffer + length,name,cur);
*(buffer + --length) = '/';
}
}
-
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