From: Ganesh Goudar <ganeshgr@chelsio.com>
Date: Tue, 18 Oct 2016 08:51:25 +0000 (+0530)
Subject: cxgb4: Fix number of queue sets corssing the limit
X-Git-Tag: v4.9-rc4~28^2~84
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a56177e18f2e44499a8bf5bc03dbe896dbec657d;p=platform%2Fkernel%2Flinux-exynos.git

cxgb4: Fix number of queue sets corssing the limit

Do not let number of offload queue sets to go more than
MAX_OFLD_QSETS, which would otherwise crash the driver
on machines with cores more than MAX_OFLD_QSETS.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index f320497..57eb4e1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4057,7 +4057,7 @@ static void cfg_queues(struct adapter *adap)
 		 * capped by the number of available cores.
 		 */
 		if (n10g) {
-			i = num_online_cpus();
+			i = min_t(int, MAX_OFLD_QSETS, num_online_cpus());
 			s->ofldqsets = roundup(i, adap->params.nports);
 		} else {
 			s->ofldqsets = adap->params.nports;