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Revision 595a438c78dbdc43d6c9db4f437267f0bd1548bf authored by Denis Efremov on 04 July 2019, 17:21:10 UTC, committed by Steven Rostedt (VMware) on 31 August 2019, 10:51:49 UTC 
tracing: Make exported ftrace_set_clr_event non-static
 
The function ftrace_set_clr_event is declared static and marked
EXPORT_SYMBOL_GPL(), which is at best an odd combination. Because the
function was decided to be a part of API, this commit removes the static
attribute and adds the declaration to the header.

Link: http://lkml.kernel.org/r/20190704172110.27041-1-efremov@linux.com

Fixes: f45d1225adb04 ("tracing: Kernel access to Ftrace instances")
Reviewed-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 parent 5b0022d
Raw File
tcp_dctcp.h 
#ifndef _TCP_DCTCP_H
#define _TCP_DCTCP_H

static inline void dctcp_ece_ack_cwr(struct sock *sk, u32 ce_state)
{
	struct tcp_sock *tp = tcp_sk(sk);

	if (ce_state == 1)
		tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
	else
		tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
}

/* Minimal DCTP CE state machine:
 *
 * S:	0 <- last pkt was non-CE
 *	1 <- last pkt was CE
 */
static inline void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
					u32 *prior_rcv_nxt, u32 *ce_state)
{
	u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0;

	if (*ce_state != new_ce_state) {
		/* CE state has changed, force an immediate ACK to
		 * reflect the new CE state. If an ACK was delayed,
		 * send that first to reflect the prior CE state.
		 */
		if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) {
			dctcp_ece_ack_cwr(sk, *ce_state);
			__tcp_send_ack(sk, *prior_rcv_nxt);
		}
		inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_NOW;
	}
	*prior_rcv_nxt = tcp_sk(sk)->rcv_nxt;
	*ce_state = new_ce_state;
	dctcp_ece_ack_cwr(sk, new_ce_state);
}

#endif
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