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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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