[PATCH v3 -next 4/4] net: emaclite: Fix restricted cast warning of sparse

From: Radhey Shyam Pandey
Date: Fri Jan 31 2020 - 06:48:24 EST


Explicitly cast xemaclite_readl return value when it's passed to ntohl.
Fixes below reported sparse warnings:

xilinx_emaclite.c:411:24: sparse: sparse: cast to restricted __be32
xilinx_emaclite.c:420:36: sparse: sparse: cast to restricted __be32

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
---
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 96e9d21..3273d4f 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -408,7 +408,8 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)

/* Get the protocol type of the ethernet frame that arrived
*/
- proto_type = ((ntohl(xemaclite_readl(addr + XEL_HEADER_OFFSET +
+ proto_type = ((ntohl((__force __be32)xemaclite_readl(addr +
+ XEL_HEADER_OFFSET +
XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
XEL_RPLR_LENGTH_MASK);

@@ -417,7 +418,7 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)
*/
if (proto_type > ETH_DATA_LEN) {
if (proto_type == ETH_P_IP) {
- length = ((ntohl(xemaclite_readl(addr +
+ length = ((ntohl((__force __be32)xemaclite_readl(addr +
XEL_HEADER_IP_LENGTH_OFFSET +
XEL_RXBUFF_OFFSET)) >>
XEL_HEADER_SHIFT) &
--
2.7.4