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authorJames Smart <james.smart@avagotech.com>2015-05-22 17:42:43 +0300
committerJames Bottomley <JBottomley@Odin.com>2015-06-13 18:24:13 +0300
commit7c5e518cc02c64901cb8920b7f5b080b91375324 (patch)
treeefd40e18905c9d9ed42603a8ede4e03f9cde45b0 /drivers/scsi/lpfc/lpfc_nportdisc.c
parentae374a308cbfeab3cf72ef7c57695d2145defeab (diff)
downloadlinux-7c5e518cc02c64901cb8920b7f5b080b91375324.tar.xz
lpfc: Fix to drop PLOGIs from fabric node till LOGO processing completes
The domain controller PLOGI's concurrent with prior LOGO's/unreg_rpi's completing created a race condition where driver rpi ref count can inadvertantly hit 0 and the rpi attempted to be freed. This error sometimes resulted in Warning messages indicating kref.h via lfpc_nlp_get+0x128. Correct by dropping any new PLOGI until the prior nport state has settled. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 09de6408c457..af3b38aba65e 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1874,7 +1874,7 @@ lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
spin_lock_irq(shost->host_lock);
- ndlp->nlp_flag &= NLP_LOGO_ACC;
+ ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(shost->host_lock);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;