cxgb4: Fix static checker warning

The patch e85c9a7abfa4: ("cxgb4/cxgb4vf: Add code to calculate T5 BAR2
Offsets for SGE Queue Registers") from Dec 3, 2014, leads to the
following static checker warning:

        drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:5358
	t4_bar2_sge_qregs()
        warn: should '(qid >> qpp_shift) << page_shift' be a 64 bit type?

This patch fixes it

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index b4110988536dee437d44df50c4bdd2a6b7937012..fdda0f8c5a190555c133832895c95842e735b7be 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -6053,7 +6053,7 @@ int t4_bar2_sge_qregs(struct adapter *adapter,
         *  o The BAR2 Queue ID.
         *  o The BAR2 Queue ID Offset into the BAR2 page.
         */
-       bar2_page_offset = ((qid >> qpp_shift) << page_shift);
+       bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
        bar2_qid = qid & qpp_mask;
        bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;