net/smc: remove obsolete link state DELETING

The connection layer in af_smc.c is now using the new LLC flow
framework, which made the link state DELETING obsolete. Remove the state
and the respective helpers.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/smc/smc_core.c

@@ -200,7 +200,6 @@ static int smcr_link_send_delete(struct smc_link *lnk, bool orderly)
 {
 	if (lnk->state == SMC_LNK_ACTIVE &&
 	    !smc_llc_send_delete_link(lnk, SMC_LLC_REQ, orderly)) {
-		smc_llc_link_deleting(lnk);
 		return 0;
 	}
 	return -ENOTCONN;
@@ -767,8 +766,7 @@ void smc_port_terminate(struct smc_ib_device *smcibdev, u8 ibport)
 			continue;
 		/* tbd - terminate only when no more links are active */
 		for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
-			if (!smc_link_usable(&lgr->lnk[i]) ||
-			    lgr->lnk[i].state == SMC_LNK_DELETING)
+			if (!smc_link_usable(&lgr->lnk[i]))
 				continue;
 			if (lgr->lnk[i].smcibdev == smcibdev &&
 			    lgr->lnk[i].ibport == ibport) {

net/smc/smc_core.h

@@ -36,7 +36,6 @@ enum smc_link_state {			/* possible states of a link */
 	SMC_LNK_INACTIVE,	/* link is inactive */
 	SMC_LNK_ACTIVATING,	/* link is being activated */
 	SMC_LNK_ACTIVE,		/* link is active */
-	SMC_LNK_DELETING,	/* link is being deleted */
 };
 
 #define SMC_WR_BUF_SIZE		48	/* size of work request buffer */

net/smc/smc_llc.c

@@ -545,7 +545,6 @@ static void smc_llc_rx_delete_link(struct smc_link *link,
 	struct smc_link_group *lgr = smc_get_lgr(link);
 
 	smc_lgr_forget(lgr);
-	smc_llc_link_deleting(link);
 	if (lgr->role == SMC_SERV) {
 		/* client asks to delete this link, send request */
 		smc_llc_prep_delete_link(llc, link, SMC_LLC_REQ, true);
@@ -878,12 +877,6 @@ void smc_llc_link_active(struct smc_link *link)
 	}
 }
 
-void smc_llc_link_deleting(struct smc_link *link)
-{
-	link->state = SMC_LNK_DELETING;
-	smc_wr_wakeup_tx_wait(link);
-}
-
 /* called in worker context */
 void smc_llc_link_clear(struct smc_link *link)
 {

net/smc/smc_llc.h

@@ -57,7 +57,6 @@ void smc_llc_lgr_init(struct smc_link_group *lgr, struct smc_sock *smc);
 void smc_llc_lgr_clear(struct smc_link_group *lgr);
 int smc_llc_link_init(struct smc_link *link);
 void smc_llc_link_active(struct smc_link *link);
-void smc_llc_link_deleting(struct smc_link *link);
 void smc_llc_link_clear(struct smc_link *link);
 int smc_llc_do_confirm_rkey(struct smc_link *send_link,
 			    struct smc_buf_desc *rmb_desc);