After running Sparse checker on the driver using
make C=1 M=drivers/net/ethernet/amazon/ena
the only error that is thrown is:
sparse: sparse: Using plain integer as NULL pointer
about the line
struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
This patch fixes this warning, thus making our driver free (for now) of
Sparse errors/warnings.
To make a more complete work, this patch also fixes all static warnings
that were found using an internal static checker.
Signed-off-by: Ido Segev <id...@amazon.com>
Signed-off-by: Shay Agroskin <shay...@amazon.com>
---
drivers/net/ethernet/amazon/ena/ena_com.c | 2 ++
drivers/net/ethernet/amazon/ena/ena_eth_com.c | 17 ++++++++++-------
drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +-
3 files changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c
b/drivers/net/ethernet/amazon/ena/ena_com.c
index 2e2366d406f6..34434c6b6000 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -513,6 +513,8 @@ static int ena_com_comp_status_to_errno(u8 comp_status)
case ENA_ADMIN_ILLEGAL_PARAMETER:
case ENA_ADMIN_UNKNOWN_ERROR:
return -EINVAL;
+ case ENA_ADMIN_RESOURCE_BUSY:
+ return -EAGAIN;
}
return -EINVAL;
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
index 8abaf3cbb5b9..ad30cacc1622 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
@@ -266,6 +266,9 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
struct ena_eth_io_tx_meta_desc *meta_desc = NULL;
meta_desc = get_sq_desc(io_sq);
+ if (unlikely(!meta_desc))
+ return -EFAULT;
+
memset(meta_desc, 0x0, sizeof(struct ena_eth_io_tx_meta_desc));
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_META_DESC_MASK;
@@ -273,7 +276,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_EXT_VALID_MASK;
/* bits 0-9 of the mss */
- meta_desc->word2 |= (ena_meta->mss <<
+ meta_desc->word2 |= ((u32)ena_meta->mss <<
ENA_ETH_IO_TX_META_DESC_MSS_LO_SHIFT) &
ENA_ETH_IO_TX_META_DESC_MSS_LO_MASK;
/* bits 10-13 of the mss */
@@ -283,7 +286,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
/* Extended meta desc */
meta_desc->len_ctrl |= ENA_ETH_IO_TX_META_DESC_ETH_META_TYPE_MASK;
- meta_desc->len_ctrl |= (io_sq->phase <<
+ meta_desc->len_ctrl |= ((u32)io_sq->phase <<
ENA_ETH_IO_TX_META_DESC_PHASE_SHIFT) &
ENA_ETH_IO_TX_META_DESC_PHASE_MASK;
@@ -296,7 +299,7 @@ static int ena_com_create_meta(struct ena_com_io_sq *io_sq,
ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_SHIFT) &
ENA_ETH_IO_TX_META_DESC_L3_HDR_OFF_MASK;
- meta_desc->word2 |= (ena_meta->l4_hdr_len <<
+ meta_desc->word2 |= ((u32)ena_meta->l4_hdr_len <<
ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_SHIFT) &
ENA_ETH_IO_TX_META_DESC_L4_HDR_LEN_IN_WORDS_MASK;
@@ -422,16 +425,16 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
if (!have_meta)
desc->len_ctrl |= ENA_ETH_IO_TX_DESC_FIRST_MASK;
- desc->buff_addr_hi_hdr_sz |= (header_len <<
+ desc->buff_addr_hi_hdr_sz |= ((u32)header_len <<
ENA_ETH_IO_TX_DESC_HEADER_LENGTH_SHIFT) &
ENA_ETH_IO_TX_DESC_HEADER_LENGTH_MASK;
- desc->len_ctrl |= (io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
+ desc->len_ctrl |= ((u32)io_sq->phase << ENA_ETH_IO_TX_DESC_PHASE_SHIFT)
&
ENA_ETH_IO_TX_DESC_PHASE_MASK;
desc->len_ctrl |= ENA_ETH_IO_TX_DESC_COMP_REQ_MASK;
/* Bits 0-9 */
- desc->meta_ctrl |= (ena_tx_ctx->req_id <<
+ desc->meta_ctrl |= ((u32)ena_tx_ctx->req_id <<
ENA_ETH_IO_TX_DESC_REQ_ID_LO_SHIFT) &
ENA_ETH_IO_TX_DESC_REQ_ID_LO_MASK;
@@ -477,7 +480,7 @@ int ena_com_prepare_tx(struct ena_com_io_sq *io_sq,
memset(desc, 0x0, sizeof(struct ena_eth_io_tx_desc));
- desc->len_ctrl |= (io_sq->phase <<
+ desc->len_ctrl |= ((u32)io_sq->phase <<
ENA_ETH_IO_TX_DESC_PHASE_SHIFT) &
ENA_ETH_IO_TX_DESC_PHASE_MASK;
}
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c
b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 97e701222226..e8131dadc22c 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -4149,7 +4149,7 @@ static int ena_calc_io_queue_size(struct
ena_calc_queue_size_ctx *ctx)
*/
static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
+ struct ena_calc_queue_size_ctx calc_queue_ctx = {};
struct ena_com_dev_get_features_ctx get_feat_ctx;
struct ena_com_dev *ena_dev = NULL;
struct ena_adapter *adapter;
--
2.17.1
