From b97a0171da24e58b0e8e81ba2575239dcb070c2b Mon Sep 17 00:00:00 2001 From: Shannon Nelson Date: Tue, 21 Jul 2020 13:34:07 -0700 Subject: ionic: update eid test for overflow [ Upstream commit 3fbc9bb6ca32d12d4d32a7ae32abef67ac95f889 ] Fix up our comparison to better handle a potential (but largely unlikely) wrap around. Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/pensando/ionic/ionic_lif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index 337d971ffd92..29f77faa808b 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -709,7 +709,7 @@ static bool ionic_notifyq_service(struct ionic_cq *cq, eid = le64_to_cpu(comp->event.eid); /* Have we run out of new completions to process? */ - if (eid <= lif->last_eid) + if ((s64)(eid - lif->last_eid) <= 0) return false; lif->last_eid = eid; -- cgit v1.2.3