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From: Ryan French <rfrench@freebsd.org>
To: freebsd-net@freebsd.org
Date: Sat, 16 Aug 2008 13:56:26 +1200
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Subject: .pru_attach and kernel warnings
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Hi everyone,

I'm having issues with trying to build my kernel at the moment with my MPLS 
development code included. I'm trying to build a pr_usrreqs struct and with 
my attach method I am getting the warning 'initialization from incompatible 
pointer type', but as far as I can see the way I have done it is the same as 
other protocols.

static int
mpls_attach(struct socket *so)
{
	int error = 0;
	if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
		error = soreserve(so, mpls_raw_sendspace, mpls_raw_recvspace);
		return error;
	}
    else return EOPNOTSUPP;
}

struct
pr_usrreqs mpls_raw_usrreq = {
	.pru_accept = pru_accept_notsupp,
	.pru_attach = mpls_attach,
	.pru_bind = pru_bind_notsupp,
	.pru_connect = pru_connect_notsupp,
	.pru_connect2 = pru_connect2_notsupp,
	.pru_control = mpls_control,
	.pru_disconnect = pru_disconnect_notsupp,
	.pru_listen = pru_listen_notsupp,
	.pru_peeraddr = pru_peeraddr_notsupp,
	.pru_rcvd = pru_rcvd_notsupp,
	.pru_rcvoob = pru_rcvoob_notsupp,
	.pru_send = pru_send_notsupp,
	.pru_sense = pru_sense_null,
	.pru_shutdown = pru_shutdown_notsupp,
	.pru_sockaddr = pru_sockaddr_notsupp,
	.pru_sosend = pru_sosend_notsupp,
	.pru_soreceive = pru_soreceive_notsupp,
	.pru_sopoll = pru_sopoll_notsupp
};

Should I ignore this warning or is there a problem with my code that I'm 
missing?

Thanks for any help.