Commit b3cb53c0 authored by Ursula Braun's avatar Ursula Braun Committed by Jakub Kicinski
Browse files

net/smc: increase device refcount for added link group 



SMCD link groups belong to certain ISM-devices and SMCR link group
links belong to certain IB-devices. Increase the refcount for
these devices, as long as corresponding link groups exist.

Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: default avatarKarsten Graul <kgraul@linux.ibm.com>
Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
parent a0a62ee1

net/smc/smc_core.c

+7 −2
Original line number Diff line number Diff line
@@ -248,12 +248,14 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini) 
	lgr->conns_all = RB_ROOT;

	if (ini->is_smcd) {

		/* SMC-D specific settings */

		get_device(&ini->ism_dev->dev);

		lgr->peer_gid = ini->ism_gid;

		lgr->smcd = ini->ism_dev;

		lgr_list = &ini->ism_dev->lgr_list;

		lgr_lock = &lgr->smcd->lgr_lock;

	} else {

		/* SMC-R specific settings */

		get_device(&ini->ib_dev->ibdev->dev);

		lgr->role = smc->listen_smc ? SMC_SERV : SMC_CLNT;

		memcpy(lgr->peer_systemid, ini->ib_lcl->id_for_peer,

		       SMC_SYSTEMID_LEN);
@@ -451,10 +453,13 @@ static void smc_lgr_free_bufs(struct smc_link_group *lgr) 
static void smc_lgr_free(struct smc_link_group *lgr)

{

	smc_lgr_free_bufs(lgr);

	if (lgr->is_smcd)

	if (lgr->is_smcd) {

		smc_ism_put_vlan(lgr->smcd, lgr->vlan_id);

	else

		put_device(&lgr->smcd->dev);

	} else {

		smc_link_clear(&lgr->lnk[SMC_SINGLE_LINK]);

		put_device(&lgr->lnk[SMC_SINGLE_LINK].smcibdev->ibdev->dev);

	}

	kfree(lgr);

}

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