1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/net/wimax/i2400m/tx.c b/drivers/net/wimax/i2400m/tx.c
index 609f1ca6e9fc..3f819efc06b5 100644
--- a/drivers/net/wimax/i2400m/tx.c
+++ b/drivers/net/wimax/i2400m/tx.c
@@ -563,8 +563,17 @@ void i2400m_tx_new(struct i2400m *i2400m)
         struct i2400m_msg_hdr *tx_msg;
         bool try_head = 0;
         BUG_ON(i2400m->tx_msg != NULL);
+        /*
+         * In certain situations, TX queue might have enough space to
+         * accommodate the new message header I2400M_TX_PLD_SIZE, but
+         * might not have enough space to accommodate the payloads.
+         * Adding bus_tx_room_min padding while allocating a new TX message
+         * increases the possibilities of including at least one payload of the
+         * size <= bus_tx_room_min.
+         */
 try_head:
-        tx_msg = i2400m_tx_fifo_push(i2400m, I2400M_TX_PLD_SIZE, 0, try_head);
+        tx_msg = i2400m_tx_fifo_push(i2400m, I2400M_TX_PLD_SIZE,
+                                     i2400m->bus_tx_room_min, try_head);
         if (tx_msg == NULL)
                 goto out;
         else if (tx_msg == TAIL_FULL) {