Krzysztof Oledzki wrote:
> (...)
> bool nf_ct_acct __read_mostly = NF_CT_ACCT_DEFAULT;
> (...)
> module_param_named(acct, nf_ct_acct, bool, 0644);        <- line 28
> (...)
> 
> net/netfilter/nf_conntrack_acct.c: In function '__check_acct':
> net/netfilter/nf_conntrack_acct.c:28: warning: return from incompatible 
> pointer type

Seems you're the first to try module_param_named with a bool :)
Does this help?