Hi Tejun,

Hmmmm... You can either convert all masks to ulong (which is fine) or
do something like the following.

#define for_each_subsys_which(ss_mask, ss, ssid)            \
    unsigned long __tmp_mask = (ss_mask);                   \
    for_each_set_bit(ssid, &__tmp_mask, CGROUP_SUBSYS_COUNT)\
            if ((ss) = group_subsys[ssid] && false)         \
                    ;                                       \
             else

I think I'll just do casting and manually make new variables where
required. The above (and similar) doesn't work very well, generates
warnings like crazy and breaks stuff like:

    if (...)
        for_each_subsys_which(...)

--
Aleksa Sarai (cyphar)
www.cyphar.com