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NTB: fix pointer math issues

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->remote_rx_info and ->rx_info are struct ntb_rx_info pointers.  If we
add sizeof(struct ntb_rx_info) then it goes too far.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jon Mason <jon.mason@intel.com>
This commit is contained in:
Dan Carpenter 2013-01-23 22:26:05 +03:00 committed by Jon Mason
parent ad3e2751e7
commit cc0f868d8a
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GPG Key ID: 6E664BAC7A8BD223
1 changed files with 2 additions and 2 deletions
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4
drivers/ntb/ntb_transport.c
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@ -486,7 +486,7 @@ static void ntb_transport_setup_qp_mw(struct ntb_transport *nt,
(qp_num / NTB_NUM_MW * rx_size); (qp_num / NTB_NUM_MW * rx_size);
rx_size -= sizeof(struct ntb_rx_info); rx_size -= sizeof(struct ntb_rx_info);
qp->rx_buff = qp->remote_rx_info + sizeof(struct ntb_rx_info); qp->rx_buff = qp->remote_rx_info + 1;
qp->rx_max_frame = min(transport_mtu, rx_size); qp->rx_max_frame = min(transport_mtu, rx_size);
qp->rx_max_entry = rx_size / qp->rx_max_frame; qp->rx_max_entry = rx_size / qp->rx_max_frame;
qp->rx_index = 0; qp->rx_index = 0;
@ -780,7 +780,7 @@ static void ntb_transport_init_queue(struct ntb_transport *nt,
(qp_num / NTB_NUM_MW * tx_size); (qp_num / NTB_NUM_MW * tx_size);
tx_size -= sizeof(struct ntb_rx_info); tx_size -= sizeof(struct ntb_rx_info);
qp->tx_mw = qp->rx_info + sizeof(struct ntb_rx_info); qp->tx_mw = qp->rx_info + 1;
qp->tx_max_frame = min(transport_mtu, tx_size); qp->tx_max_frame = min(transport_mtu, tx_size);
qp->tx_max_entry = tx_size / qp->tx_max_frame; qp->tx_max_entry = tx_size / qp->tx_max_frame;
qp->tx_index = 0; qp->tx_index = 0;