Commit 27a59593 authored Aug 23, 2018 by Huazhong Tan Committed by David S. Miller Aug 22, 2018

net: hns3: fix page_offset overflow when CONFIG_ARM64_64K_PAGES

When enable the config item "CONFIG_ARM64_64K_PAGES", the size of
PAGE_SIZE is 65536(64K). But the type of page_offset is u16, it will
overflow. So change it to u32, when "CONFIG_ARM64_64K_PAGES" enabled.

Fixes: 76ad4f0e ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d23c4b63

drivers/net/ethernet/hisilicon/hns3/hns3_enet.h

+3 −3

Original line number	Diff line number	Diff line
		@@ -284,11 +284,11 @@ struct hns3_desc_cb {

		/* priv data for the desc, e.g. skb when use with ip stack*/
		void *priv;
		u16 page_offset;
		u16 reuse_flag;

		u32 page_offset;
		u32 length; /* length of the buffer */

		u16 reuse_flag;

		/* desc type, used by the ring user to mark the type of the priv data */
		u16 type;
		};