diff options
| -rw-r--r-- | drivers/net/wimax/i2400m/tx.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/net/wimax/i2400m/tx.c b/drivers/net/wimax/i2400m/tx.c index a5002c8467c..1725f2b022a 100644 --- a/drivers/net/wimax/i2400m/tx.c +++ b/drivers/net/wimax/i2400m/tx.c @@ -287,19 +287,6 @@ enum { * documents, the maximum size of each message can be up to 16KiB. */ I2400M_TX_MSG_SIZE = 16384, - /* - * 16 byte aligned MAX_MTU + 4 byte payload prefix. - */ - I2400M_MAX_MTU_ALIGN = 16, - I2400M_TX_PDU_SIZE = I2400M_MAX_MTU % I2400M_MAX_MTU_ALIGN - + I2400M_MAX_MTU + sizeof(struct i2400m_pl_data_hdr), - /* - * 256 byte aligned toal size of 12 PDUs including msg header, - */ - I2400M_TX_PDU_ALIGN = 256, - I2400M_TX_PDU_TOTAL_SIZE = ((I2400M_TX_PDU_SIZE * I2400M_TX_PLD_MAX - + sizeof(struct i2400m_msg_hdr))/I2400M_TX_PDU_ALIGN + 1) - * I2400M_TX_PDU_ALIGN * 2, }; #define TAIL_FULL ((void *)~(unsigned long)NULL) @@ -915,8 +902,11 @@ int i2400m_tx_setup(struct i2400m *i2400m) goto error_kmalloc; } - /* Warn if the calculated buffer size exceeds I2400M_TX_BUF_SIZE. */ - BUILD_BUG_ON(I2400M_TX_PDU_TOTAL_SIZE > I2400M_TX_BUF_SIZE); + /* + * Fail the build if we can't fit at least two maximum size messages + * on the TX FIFO [one being delivered while one is constructed]. + */ + BUILD_BUG_ON(2 * I2400M_TX_MSG_SIZE > I2400M_TX_BUF_SIZE); spin_lock_irqsave(&i2400m->tx_lock, flags); i2400m->tx_sequence = 0; i2400m->tx_in = 0; |