[PATCH] staging: gdm724x: Fix sparse warnings

[maomao xu]

drivers/staging/gdm724x/gdm_lte.c:311:39: warning: incorrect type in assignment (different base types)
drivers/staging/gdm724x/gdm_lte.c:311:39:    expected restricted __sum16 [addressable] [assigned] [usertype] icmp6_cksum
drivers/staging/gdm724x/gdm_lte.c:311:39:    got int

Signed-off-by: maomao xu <albert008.xu@xxxxxxxxx>

diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index a3e046c..ddec6d0 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -308,7 +308,7 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
 		memcpy(icmp_na + sizeof(struct icmp6hdr), &na,
 		       sizeof(struct neighbour_advertisement));
 
-		icmp6_out.icmp6_cksum = icmp6_checksum(&ipv6_out,
+		icmp6_out.icmp6_cksum = (__force __sum16)icmp6_checksum(&ipv6_out,
 					(u16 *)icmp_na, sizeof(icmp_na));
 	} else {
 		return -1;
-- 
1.7.9.5