Re: [PATCH] fat: add a check to fat_add_new_entries

[OGAWA Hirofumi]

t...@redhat.com writes:

>               start_blknr = blknr = fat_clus_to_blknr(sbi, cluster[i]);
>               last_blknr = start_blknr + sbi->sec_per_clus;
> +
> +             /* overflow */
> +             if (unlikely(last_blknr <= start_blknr)) {
> +                     err = -ENOMEM;
> +                     goto error_nomem;
> +             }
> +

The cluster is 28bits and sec_per_clus is 8bits, so this should never
overflow actually. Is there no way to tell it to clang?

Thanks.
-- 
OGAWA Hirofumi <hirof...@mail.parknet.co.jp>