[PATCH 4.14 22/67] qed: Fix bitmap_weight() check

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 276d43f0ae963312c0cd0e2b9a85fd11ac65dfcc ]

Fix the condition which verifies that only one flag is set. The API
bitmap_weight() should receive size in bits instead of bytes.

Fixes: b5a9ee7cf3be ("qed: Revise QM cofiguration")
Signed-off-by: Denis Bolotin <denis.bolotin@xxxxxxxxxx>
Signed-off-by: Michal Kalderon <michal.kalderon@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index ef2374699726..a51cd1028ecb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -440,8 +440,11 @@ static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 
 	/* Can't have multiple flags set here */
-	if (bitmap_weight((unsigned long *)&pq_flags, sizeof(pq_flags)) > 1)
+	if (bitmap_weight((unsigned long *)&pq_flags,
+			  sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
+		DP_ERR(p_hwfn, "requested multiple pq flags 0x%x\n", pq_flags);
 		goto err;
+	}
 
 	switch (pq_flags) {
 	case PQ_FLAGS_RLS:
-- 
2.19.1