Re: ADFS -> undefined reference to __cmpdi2 (2.3.51)

From: Mitchell Blank Jr (mitch@sfgoth.com)
Date: Sat Mar 11 2000 - 17:07:25 EST


Arjan van de Ven wrote:
> --- linux/fs/adfs/dir.c.org Sat Mar 11 10:49:54 2000
> +++ linux/fs/adfs/dir.c Sat Mar 11 16:16:26 2000
> @@ -38,8 +38,11 @@
> ret = ops->read(sb, inode->i_ino, inode->i_size, &dir);
> if (ret)
> goto out;
> +
> + if ((filp->f_pos>>32)!=0)
> + BUG();
>
> - switch (filp->f_pos) {
> + switch ((unsigned int)filp->f_pos) {

Don't code in unneccesary dependance that (sizeof int)==32.

        if ((filp->f_pos >> BITS_PER_LONG) != 0)
                return 0;
        switch ((unsigned long) filp->f_pos) {

The only problem is that you'll now get a compiler warning if sizeof(unsigned
long)==sizeof(unsigned long long)... for instance, alpha You can avoid
this with:

        #if (-1ULL >> BITS_PER_LONG) != 0
        if ((filp->f_pos >> BITS_PER_LONG) != 0)
                return 0;
        #endif
        switch ((unsigned long) filp->f_pos) {

Another posibility is to keep the ">> 32" there and just cast to a "u32"
type.

-Mitch

-
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