Merge branch 'mlx4-fixes'

Tariq Toukan says:

====================
mlx4 fixes for 4.20-rc

This patchset includes small fixes for mlx4_core driver.

First patch by Jack zeros a field in a FW communication
command, to match the FW spec.
Please queue it to -stable >= v3.17.

In the second patch I zero-initialize a variable to silence
a compliation warning.
Please queue it to -stable >= v3.19.

Third patch by Aya replaces int fields with unsigned int,
to fix a UBSAN warning.
Please queue it to -stable >= v3.13.

Series generated against net commit:
db8ddde7 Merge branch 'qed-Miscellaneous-bug-fixes'
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/alloc.c

@@ -337,7 +337,7 @@ void mlx4_zone_allocator_destroy(struct mlx4_zone_allocator *zone_alloc)
 static u32 __mlx4_alloc_from_zone(struct mlx4_zone_entry *zone, int count,
 				  int align, u32 skip_mask, u32 *puid)
 {
-	u32 uid;
+	u32 uid = 0;
 	u32 res;
 	struct mlx4_zone_allocator *zone_alloc = zone->allocator;
 	struct mlx4_zone_entry *curr_node;

drivers/net/ethernet/mellanox/mlx4/mlx4.h

@@ -540,8 +540,8 @@ struct slave_list {
 struct resource_allocator {
 	spinlock_t alloc_lock; /* protect quotas */
 	union {
-		int res_reserved;
-		int res_port_rsvd[MLX4_MAX_PORTS];
+		unsigned int res_reserved;
+		unsigned int res_port_rsvd[MLX4_MAX_PORTS];
 	};
 	union {
 		int res_free;

drivers/net/ethernet/mellanox/mlx4/mr.c

@@ -363,6 +363,7 @@ int mlx4_mr_hw_write_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
 			container_of((void *)mpt_entry, struct mlx4_cmd_mailbox,
 				     buf);
 
+		(*mpt_entry)->lkey = 0;
 		err = mlx4_SW2HW_MPT(dev, mailbox, key);
 	}