diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/ef10.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 92e1c6d8b293..4d88e8532d3e 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -828,9 +828,7 @@ static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n) static int efx_ef10_link_piobufs(struct efx_nic *efx) { struct efx_ef10_nic_data *nic_data = efx->nic_data; - _MCDI_DECLARE_BUF(inbuf, - max(MC_CMD_LINK_PIOBUF_IN_LEN, - MC_CMD_UNLINK_PIOBUF_IN_LEN)); + MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_PIOBUF_IN_LEN); struct efx_channel *channel; struct efx_tx_queue *tx_queue; unsigned int offset, index; @@ -839,8 +837,6 @@ static int efx_ef10_link_piobufs(struct efx_nic *efx) BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_OUT_LEN != 0); BUILD_BUG_ON(MC_CMD_UNLINK_PIOBUF_OUT_LEN != 0); - memset(inbuf, 0, sizeof(inbuf)); - /* Link a buffer to each VI in the write-combining mapping */ for (index = 0; index < nic_data->n_piobufs; ++index) { MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_PIOBUF_HANDLE, @@ -920,6 +916,10 @@ static int efx_ef10_link_piobufs(struct efx_nic *efx) return 0; fail: + /* inbuf was defined for MC_CMD_LINK_PIOBUF. We can use the same + * buffer for MC_CMD_UNLINK_PIOBUF because it's shorter. + */ + BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_IN_LEN < MC_CMD_UNLINK_PIOBUF_IN_LEN); while (index--) { MCDI_SET_DWORD(inbuf, UNLINK_PIOBUF_IN_TXQ_INSTANCE, nic_data->pio_write_vi_base + index); |