cxgb4: add forgotten u64 ivlan cast before shift

It is done everywhere in cxgb4 code, e.g. in is_filter_exact_match()
There is no reason it should not be done here

Found by Linux Verification Center (linuxtesting.org) with SVACE

Signed-off-by: Nikolay Kuratov <[email protected]>
Cc: [email protected]
Fixes: 12b276f ("cxgb4: add support to create hash filters")
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Jacob Keller <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: Nikolay Kuratov

drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c

@@ -1244,7 +1244,8 @@ static u64 hash_filter_ntuple(struct ch_filter_specification *fs,
 	 * in the Compressed Filter Tuple.
 	 */
 	if (tp->vlan_shift >= 0 && fs->mask.ivlan)
-		ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
+		ntuple |= (u64)(FT_VLAN_VLD_F |
+				fs->val.ivlan) << tp->vlan_shift;
 
 	if (tp->port_shift >= 0 && fs->mask.iport)
 		ntuple |= (u64)fs->val.iport << tp->port_shift;