Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 36/45] ionic: update eid test for overflow | Date | Mon, 10 Aug 2020 15:11:44 -0400 |
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From: Shannon Nelson <snelson@pensando.io>
[ Upstream commit 3fbc9bb6ca32d12d4d32a7ae32abef67ac95f889 ]
Fix up our comparison to better handle a potential (but largely unlikely) wrap around.
Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 c00ec9a020973..e66002251596b 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -666,7 +666,7 @@ 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; -- 2.25.1
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