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raspberrypi-kernel
提交 ede23fa8 编写于 作者: J Joe Perches 提交者： David S. Miller
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drivers:net: Convert dma_alloc_coherent(...__GFP_ZERO) to dma_zalloc_coherent 

__GFP_ZERO is an uncommon flag and perhaps is better
not used.  static inline dma_zalloc_coherent exists
so convert the uses of dma_alloc_coherent with __GFP_ZERO
to the more common kernel style with zalloc.

Remove memset from the static inline dma_zalloc_coherent
and add just one use of __GFP_ZERO instead.

Trivially reduces the size of the existing uses of
dma_zalloc_coherent.

Realign arguments as appropriate.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Acked-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 afe4fd06
隐藏空白更改
内联 并排
Showing with 135 addition and 153 deletion
drivers/net/ethernet/aeroflex/greth.c
浏览文件 @ ede23fa8
...@@ -1464,18 +1464,18 @@ static int greth_of_probe(struct platform_device *ofdev) ...@@ -1464,18 +1464,18 @@ static int greth_of_probe(struct platform_device *ofdev)
} }
/* Allocate TX descriptor ring in coherent memory */ /* Allocate TX descriptor ring in coherent memory */
greth->tx_bd_base = dma_alloc_coherent(greth->dev, 1024, greth->tx_bd_base = dma_zalloc_coherent(greth->dev, 1024,
&greth->tx_bd_base_phys, &greth->tx_bd_base_phys,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!greth->tx_bd_base) { if (!greth->tx_bd_base) {
err = -ENOMEM; err = -ENOMEM;
goto error3; goto error3;
} }
/* Allocate RX descriptor ring in coherent memory */ /* Allocate RX descriptor ring in coherent memory */
greth->rx_bd_base = dma_alloc_coherent(greth->dev, 1024, greth->rx_bd_base = dma_zalloc_coherent(greth->dev, 1024,
&greth->rx_bd_base_phys, &greth->rx_bd_base_phys,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!greth->rx_bd_base) { if (!greth->rx_bd_base) {
err = -ENOMEM; err = -ENOMEM;
goto error4; goto error4;
......
drivers/net/ethernet/broadcom/bcm63xx_enet.c
浏览文件 @ ede23fa8
...@@ -948,8 +948,7 @@ static int bcm_enet_open(struct net_device *dev) ...@@ -948,8 +948,7 @@ static int bcm_enet_open(struct net_device *dev)
/* allocate rx dma ring */ /* allocate rx dma ring */
size = priv->rx_ring_size * sizeof(struct bcm_enet_desc); size = priv->rx_ring_size * sizeof(struct bcm_enet_desc);
p = dma_alloc_coherent(kdev, size, &priv->rx_desc_dma, p = dma_zalloc_coherent(kdev, size, &priv->rx_desc_dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!p) { if (!p) {
ret = -ENOMEM; ret = -ENOMEM;
goto out_freeirq_tx; goto out_freeirq_tx;
...@@ -960,8 +959,7 @@ static int bcm_enet_open(struct net_device *dev) ...@@ -960,8 +959,7 @@ static int bcm_enet_open(struct net_device *dev)
/* allocate tx dma ring */ /* allocate tx dma ring */
size = priv->tx_ring_size * sizeof(struct bcm_enet_desc); size = priv->tx_ring_size * sizeof(struct bcm_enet_desc);
p = dma_alloc_coherent(kdev, size, &priv->tx_desc_dma, p = dma_zalloc_coherent(kdev, size, &priv->tx_desc_dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!p) { if (!p) {
ret = -ENOMEM; ret = -ENOMEM;
goto out_free_rx_ring; goto out_free_rx_ring;
......
drivers/net/ethernet/broadcom/bnx2.c
浏览文件 @ ede23fa8
...@@ -853,9 +853,8 @@ bnx2_alloc_mem(struct bnx2 *bp) ...@@ -853,9 +853,8 @@ bnx2_alloc_mem(struct bnx2 *bp)
bp->status_stats_size = status_blk_size + bp->status_stats_size = status_blk_size +
sizeof(struct statistics_block); sizeof(struct statistics_block);
status_blk = dma_alloc_coherent(&bp->pdev->dev, bp->status_stats_size, status_blk = dma_zalloc_coherent(&bp->pdev->dev, bp->status_stats_size,
&bp->status_blk_mapping, &bp->status_blk_mapping, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (status_blk == NULL) if (status_blk == NULL)
goto alloc_mem_err; goto alloc_mem_err;
......
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
浏览文件 @ ede23fa8
...@@ -2069,9 +2069,8 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms, ...@@ -2069,9 +2069,8 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
bool is_pf); bool is_pf);
#define BNX2X_ILT_ZALLOC(x, y, size) \ #define BNX2X_ILT_ZALLOC(x, y, size) \
x = dma_alloc_coherent(&bp->pdev->dev, size, y, \ x = dma_zalloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL)
GFP_KERNEL | __GFP_ZERO)
#define BNX2X_ILT_FREE(x, y, size) \ #define BNX2X_ILT_FREE(x, y, size) \
do { \ do { \
......
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
浏览文件 @ ede23fa8
...@@ -51,8 +51,7 @@ extern int int_mode; ...@@ -51,8 +51,7 @@ extern int int_mode;
#define BNX2X_PCI_ALLOC(x, y, size) \ #define BNX2X_PCI_ALLOC(x, y, size) \
do { \ do { \
x = dma_alloc_coherent(&bp->pdev->dev, size, y, \ x = dma_zalloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
GFP_KERNEL | __GFP_ZERO); \
if (x == NULL) \ if (x == NULL) \
goto alloc_mem_err; \ goto alloc_mem_err; \
DP(NETIF_MSG_HW, "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \ DP(NETIF_MSG_HW, "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \
......
drivers/net/ethernet/broadcom/tg3.c
浏览文件 @ ede23fa8
...@@ -8591,10 +8591,10 @@ static int tg3_mem_rx_acquire(struct tg3 *tp) ...@@ -8591,10 +8591,10 @@ static int tg3_mem_rx_acquire(struct tg3 *tp)
if (!i && tg3_flag(tp, ENABLE_RSS)) if (!i && tg3_flag(tp, ENABLE_RSS))
continue; continue;
tnapi->rx_rcb = dma_alloc_coherent(&tp->pdev->dev, tnapi->rx_rcb = dma_zalloc_coherent(&tp->pdev->dev,
TG3_RX_RCB_RING_BYTES(tp), TG3_RX_RCB_RING_BYTES(tp),
&tnapi->rx_rcb_mapping, &tnapi->rx_rcb_mapping,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!tnapi->rx_rcb) if (!tnapi->rx_rcb)
goto err_out; goto err_out;
} }
...@@ -8643,10 +8643,9 @@ static int tg3_alloc_consistent(struct tg3 *tp) ...@@ -8643,10 +8643,9 @@ static int tg3_alloc_consistent(struct tg3 *tp)
{ {
int i; int i;
tp->hw_stats = dma_alloc_coherent(&tp->pdev->dev, tp->hw_stats = dma_zalloc_coherent(&tp->pdev->dev,
sizeof(struct tg3_hw_stats), sizeof(struct tg3_hw_stats),
&tp->stats_mapping, &tp->stats_mapping, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!tp->hw_stats) if (!tp->hw_stats)
goto err_out; goto err_out;
...@@ -8654,10 +8653,10 @@ static int tg3_alloc_consistent(struct tg3 *tp) ...@@ -8654,10 +8653,10 @@ static int tg3_alloc_consistent(struct tg3 *tp)
struct tg3_napi *tnapi = &tp->napi[i]; struct tg3_napi *tnapi = &tp->napi[i];
struct tg3_hw_status *sblk; struct tg3_hw_status *sblk;
tnapi->hw_status = dma_alloc_coherent(&tp->pdev->dev, tnapi->hw_status = dma_zalloc_coherent(&tp->pdev->dev,
TG3_HW_STATUS_SIZE, TG3_HW_STATUS_SIZE,
&tnapi->status_mapping, &tnapi->status_mapping,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!tnapi->hw_status) if (!tnapi->hw_status)
goto err_out; goto err_out;
......
drivers/net/ethernet/emulex/benet/be_main.c
浏览文件 @ ede23fa8
...@@ -145,8 +145,8 @@ static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, ...@@ -145,8 +145,8 @@ static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
q->len = len; q->len = len;
q->entry_size = entry_size; q->entry_size = entry_size;
mem->size = len * entry_size; mem->size = len * entry_size;
mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma, mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!mem->va) if (!mem->va)
return -ENOMEM; return -ENOMEM;
return 0; return 0;
...@@ -2642,8 +2642,8 @@ static int be_setup_wol(struct be_adapter *adapter, bool enable) ...@@ -2642,8 +2642,8 @@ static int be_setup_wol(struct be_adapter *adapter, bool enable)
memset(mac, 0, ETH_ALEN); memset(mac, 0, ETH_ALEN);
cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (cmd.va == NULL) if (cmd.va == NULL)
return -1; return -1;
...@@ -3946,9 +3946,9 @@ static int be_ctrl_init(struct be_adapter *adapter) ...@@ -3946,9 +3946,9 @@ static int be_ctrl_init(struct be_adapter *adapter)
memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
rx_filter->size = sizeof(struct be_cmd_req_rx_filter); rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size, rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
&rx_filter->dma, rx_filter->size, &rx_filter->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (rx_filter->va == NULL) { if (rx_filter->va == NULL) {
status = -ENOMEM; status = -ENOMEM;
goto free_mbox; goto free_mbox;
...@@ -3994,8 +3994,8 @@ static int be_stats_init(struct be_adapter *adapter) ...@@ -3994,8 +3994,8 @@ static int be_stats_init(struct be_adapter *adapter)
/* BE3 and Skyhawk */ /* BE3 and Skyhawk */
cmd->size = sizeof(struct be_cmd_req_get_stats_v1); cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma, cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (cmd->va == NULL) if (cmd->va == NULL)
return -1; return -1;
return 0; return 0;
......
drivers/net/ethernet/faraday/ftgmac100.c
浏览文件 @ ede23fa8
...@@ -778,10 +778,9 @@ static int ftgmac100_alloc_buffers(struct ftgmac100 *priv) ...@@ -778,10 +778,9 @@ static int ftgmac100_alloc_buffers(struct ftgmac100 *priv)
{ {
int i; int i;
priv->descs = dma_alloc_coherent(priv->dev, priv->descs = dma_zalloc_coherent(priv->dev,
sizeof(struct ftgmac100_descs), sizeof(struct ftgmac100_descs),
&priv->descs_dma_addr, &priv->descs_dma_addr, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!priv->descs) if (!priv->descs)
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/faraday/ftmac100.c
浏览文件 @ ede23fa8
...@@ -732,10 +732,10 @@ static int ftmac100_alloc_buffers(struct ftmac100 *priv) ...@@ -732,10 +732,10 @@ static int ftmac100_alloc_buffers(struct ftmac100 *priv)
{ {
int i; int i;
priv->descs = dma_alloc_coherent(priv->dev, priv->descs = dma_zalloc_coherent(priv->dev,
sizeof(struct ftmac100_descs), sizeof(struct ftmac100_descs),
&priv->descs_dma_addr, &priv->descs_dma_addr,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!priv->descs) if (!priv->descs)
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/ibm/emac/mal.c
浏览文件 @ ede23fa8
...@@ -637,8 +637,8 @@ static int mal_probe(struct platform_device *ofdev) ...@@ -637,8 +637,8 @@ static int mal_probe(struct platform_device *ofdev)
bd_size = sizeof(struct mal_descriptor) * bd_size = sizeof(struct mal_descriptor) *
(NUM_TX_BUFF * mal->num_tx_chans + (NUM_TX_BUFF * mal->num_tx_chans +
NUM_RX_BUFF * mal->num_rx_chans); NUM_RX_BUFF * mal->num_rx_chans);
mal->bd_virt = dma_alloc_coherent(&ofdev->dev, bd_size, &mal->bd_dma, mal->bd_virt = dma_zalloc_coherent(&ofdev->dev, bd_size, &mal->bd_dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (mal->bd_virt == NULL) { if (mal->bd_virt == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto fail_unmap; goto fail_unmap;
......
drivers/net/ethernet/intel/e1000/e1000_ethtool.c
浏览文件 @ ede23fa8
...@@ -1019,8 +1019,8 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) ...@@ -1019,8 +1019,8 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
txdr->size = txdr->count * sizeof(struct e1000_tx_desc); txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
txdr->size = ALIGN(txdr->size, 4096); txdr->size = ALIGN(txdr->size, 4096);
txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma, txdr->desc = dma_zalloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!txdr->desc) { if (!txdr->desc) {
ret_val = 2; ret_val = 2;
goto err_nomem; goto err_nomem;
...@@ -1077,8 +1077,8 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) ...@@ -1077,8 +1077,8 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
} }
rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!rxdr->desc) { if (!rxdr->desc) {
ret_val = 6; ret_val = 6;
goto err_nomem; goto err_nomem;
......
drivers/net/ethernet/intel/ixgb/ixgb_main.c
浏览文件 @ ede23fa8
...@@ -718,8 +718,8 @@ ixgb_setup_tx_resources(struct ixgb_adapter *adapter) ...@@ -718,8 +718,8 @@ ixgb_setup_tx_resources(struct ixgb_adapter *adapter)
txdr->size = txdr->count * sizeof(struct ixgb_tx_desc); txdr->size = txdr->count * sizeof(struct ixgb_tx_desc);
txdr->size = ALIGN(txdr->size, 4096); txdr->size = ALIGN(txdr->size, 4096);
txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma, txdr->desc = dma_zalloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!txdr->desc) { if (!txdr->desc) {
vfree(txdr->buffer_info); vfree(txdr->buffer_info);
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/marvell/pxa168_eth.c
浏览文件 @ ede23fa8
...@@ -583,10 +583,9 @@ static int init_hash_table(struct pxa168_eth_private *pep) ...@@ -583,10 +583,9 @@ static int init_hash_table(struct pxa168_eth_private *pep)
* table is full. * table is full.
*/ */
if (pep->htpr == NULL) { if (pep->htpr == NULL) {
pep->htpr = dma_alloc_coherent(pep->dev->dev.parent, pep->htpr = dma_zalloc_coherent(pep->dev->dev.parent,
HASH_ADDR_TABLE_SIZE, HASH_ADDR_TABLE_SIZE,
&pep->htpr_dma, &pep->htpr_dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (pep->htpr == NULL) if (pep->htpr == NULL)
return -ENOMEM; return -ENOMEM;
} else { } else {
...@@ -1024,9 +1023,9 @@ static int rxq_init(struct net_device *dev) ...@@ -1024,9 +1023,9 @@ static int rxq_init(struct net_device *dev)
pep->rx_desc_count = 0; pep->rx_desc_count = 0;
size = pep->rx_ring_size * sizeof(struct rx_desc); size = pep->rx_ring_size * sizeof(struct rx_desc);
pep->rx_desc_area_size = size; pep->rx_desc_area_size = size;
pep->p_rx_desc_area = dma_alloc_coherent(pep->dev->dev.parent, size, pep->p_rx_desc_area = dma_zalloc_coherent(pep->dev->dev.parent, size,
&pep->rx_desc_dma, &pep->rx_desc_dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!pep->p_rx_desc_area) if (!pep->p_rx_desc_area)
goto out; goto out;
...@@ -1085,9 +1084,9 @@ static int txq_init(struct net_device *dev) ...@@ -1085,9 +1084,9 @@ static int txq_init(struct net_device *dev)
pep->tx_desc_count = 0; pep->tx_desc_count = 0;
size = pep->tx_ring_size * sizeof(struct tx_desc); size = pep->tx_ring_size * sizeof(struct tx_desc);
pep->tx_desc_area_size = size; pep->tx_desc_area_size = size;
pep->p_tx_desc_area = dma_alloc_coherent(pep->dev->dev.parent, size, pep->p_tx_desc_area = dma_zalloc_coherent(pep->dev->dev.parent, size,
&pep->tx_desc_dma, &pep->tx_desc_dma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!pep->p_tx_desc_area) if (!pep->p_tx_desc_area)
goto out; goto out;
/* Initialize the next_desc_ptr links in the Tx descriptors ring */ /* Initialize the next_desc_ptr links in the Tx descriptors ring */
......
drivers/net/ethernet/myricom/myri10ge/myri10ge.c
浏览文件 @ ede23fa8
...@@ -3783,9 +3783,9 @@ static int myri10ge_alloc_slices(struct myri10ge_priv *mgp) ...@@ -3783,9 +3783,9 @@ static int myri10ge_alloc_slices(struct myri10ge_priv *mgp)
for (i = 0; i < mgp->num_slices; i++) { for (i = 0; i < mgp->num_slices; i++) {
ss = &mgp->ss[i]; ss = &mgp->ss[i];
bytes = mgp->max_intr_slots * sizeof(*ss->rx_done.entry); bytes = mgp->max_intr_slots * sizeof(*ss->rx_done.entry);
ss->rx_done.entry = dma_alloc_coherent(&pdev->dev, bytes, ss->rx_done.entry = dma_zalloc_coherent(&pdev->dev, bytes,
&ss->rx_done.bus, &ss->rx_done.bus,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (ss->rx_done.entry == NULL) if (ss->rx_done.entry == NULL)
goto abort; goto abort;
bytes = sizeof(*ss->fw_stats); bytes = sizeof(*ss->fw_stats);
......
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
浏览文件 @ ede23fa8
...@@ -1491,9 +1491,9 @@ pch_gbe_alloc_rx_buffers_pool(struct pch_gbe_adapter *adapter, ...@@ -1491,9 +1491,9 @@ pch_gbe_alloc_rx_buffers_pool(struct pch_gbe_adapter *adapter,
bufsz = adapter->rx_buffer_len; bufsz = adapter->rx_buffer_len;
size = rx_ring->count * bufsz + PCH_GBE_RESERVE_MEMORY; size = rx_ring->count * bufsz + PCH_GBE_RESERVE_MEMORY;
rx_ring->rx_buff_pool = dma_alloc_coherent(&pdev->dev, size, rx_ring->rx_buff_pool =
&rx_ring->rx_buff_pool_logic, dma_zalloc_coherent(&pdev->dev, size,
GFP_KERNEL | __GFP_ZERO); &rx_ring->rx_buff_pool_logic, GFP_KERNEL);
if (!rx_ring->rx_buff_pool) if (!rx_ring->rx_buff_pool)
return -ENOMEM; return -ENOMEM;
...@@ -1807,9 +1807,8 @@ int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter, ...@@ -1807,9 +1807,8 @@ int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
tx_ring->size = tx_ring->count * (int)sizeof(struct pch_gbe_tx_desc); tx_ring->size = tx_ring->count * (int)sizeof(struct pch_gbe_tx_desc);
tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, tx_ring->desc = dma_zalloc_coherent(&pdev->dev, tx_ring->size,
&tx_ring->dma, &tx_ring->dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!tx_ring->desc) { if (!tx_ring->desc) {
vfree(tx_ring->buffer_info); vfree(tx_ring->buffer_info);
return -ENOMEM; return -ENOMEM;
...@@ -1852,9 +1851,8 @@ int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter, ...@@ -1852,9 +1851,8 @@ int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
return -ENOMEM; return -ENOMEM;
rx_ring->size = rx_ring->count * (int)sizeof(struct pch_gbe_rx_desc); rx_ring->size = rx_ring->count * (int)sizeof(struct pch_gbe_rx_desc);
rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size, rx_ring->desc = dma_zalloc_coherent(&pdev->dev, rx_ring->size,
&rx_ring->dma, &rx_ring->dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!rx_ring->desc) { if (!rx_ring->desc) {
vfree(rx_ring->buffer_info); vfree(rx_ring->buffer_info);
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/pasemi/pasemi_mac.c
浏览文件 @ ede23fa8
...@@ -440,10 +440,9 @@ static int pasemi_mac_setup_rx_resources(const struct net_device *dev) ...@@ -440,10 +440,9 @@ static int pasemi_mac_setup_rx_resources(const struct net_device *dev)
if (pasemi_dma_alloc_ring(&ring->chan, RX_RING_SIZE)) if (pasemi_dma_alloc_ring(&ring->chan, RX_RING_SIZE))
goto out_ring_desc; goto out_ring_desc;
ring->buffers = dma_alloc_coherent(&mac->dma_pdev->dev, ring->buffers = dma_zalloc_coherent(&mac->dma_pdev->dev,
RX_RING_SIZE * sizeof(u64), RX_RING_SIZE * sizeof(u64),
&ring->buf_dma, &ring->buf_dma, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!ring->buffers) if (!ring->buffers)
goto out_ring_desc; goto out_ring_desc;
......
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
浏览文件 @ ede23fa8
...@@ -448,14 +448,14 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter, ...@@ -448,14 +448,14 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
*(tx_ring->hw_consumer) = 0; *(tx_ring->hw_consumer) = 0;
rq_size = SIZEOF_HOSTRQ_TX(struct qlcnic_hostrq_tx_ctx); rq_size = SIZEOF_HOSTRQ_TX(struct qlcnic_hostrq_tx_ctx);
rq_addr = dma_alloc_coherent(&adapter->pdev->dev, rq_size, rq_addr = dma_zalloc_coherent(&adapter->pdev->dev, rq_size,
&rq_phys_addr, GFP_KERNEL | __GFP_ZERO); &rq_phys_addr, GFP_KERNEL);
if (!rq_addr) if (!rq_addr)
return -ENOMEM; return -ENOMEM;
rsp_size = SIZEOF_CARDRSP_TX(struct qlcnic_cardrsp_tx_ctx); rsp_size = SIZEOF_CARDRSP_TX(struct qlcnic_cardrsp_tx_ctx);
rsp_addr = dma_alloc_coherent(&adapter->pdev->dev, rsp_size, rsp_addr = dma_zalloc_coherent(&adapter->pdev->dev, rsp_size,
&rsp_phys_addr, GFP_KERNEL | __GFP_ZERO); &rsp_phys_addr, GFP_KERNEL);
if (!rsp_addr) { if (!rsp_addr) {
err = -ENOMEM; err = -ENOMEM;
goto out_free_rq; goto out_free_rq;
...@@ -865,8 +865,8 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter, ...@@ -865,8 +865,8 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
struct qlcnic_cmd_args cmd; struct qlcnic_cmd_args cmd;
size_t nic_size = sizeof(struct qlcnic_info_le); size_t nic_size = sizeof(struct qlcnic_info_le);
nic_info_addr = dma_alloc_coherent(&adapter->pdev->dev, nic_size, nic_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, nic_size,
&nic_dma_t, GFP_KERNEL | __GFP_ZERO); &nic_dma_t, GFP_KERNEL);
if (!nic_info_addr) if (!nic_info_addr)
return -ENOMEM; return -ENOMEM;
...@@ -919,8 +919,8 @@ int qlcnic_82xx_set_nic_info(struct qlcnic_adapter *adapter, ...@@ -919,8 +919,8 @@ int qlcnic_82xx_set_nic_info(struct qlcnic_adapter *adapter,
if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
return err; return err;
nic_info_addr = dma_alloc_coherent(&adapter->pdev->dev, nic_size, nic_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, nic_size,
&nic_dma_t, GFP_KERNEL | __GFP_ZERO); &nic_dma_t, GFP_KERNEL);
if (!nic_info_addr) if (!nic_info_addr)
return -ENOMEM; return -ENOMEM;
...@@ -972,9 +972,8 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter, ...@@ -972,9 +972,8 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
size_t npar_size = sizeof(struct qlcnic_pci_info_le); size_t npar_size = sizeof(struct qlcnic_pci_info_le);
size_t pci_size = npar_size * QLCNIC_MAX_PCI_FUNC; size_t pci_size = npar_size * QLCNIC_MAX_PCI_FUNC;
pci_info_addr = dma_alloc_coherent(&adapter->pdev->dev, pci_size, pci_info_addr = dma_zalloc_coherent(&adapter->pdev->dev, pci_size,
&pci_info_dma_t, &pci_info_dma_t, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!pci_info_addr) if (!pci_info_addr)
return -ENOMEM; return -ENOMEM;
...@@ -1074,8 +1073,8 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func, ...@@ -1074,8 +1073,8 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
return -EIO; return -EIO;
} }
stats_addr = dma_alloc_coherent(&adapter->pdev->dev, stats_size, stats_addr = dma_zalloc_coherent(&adapter->pdev->dev, stats_size,
&stats_dma_t, GFP_KERNEL | __GFP_ZERO); &stats_dma_t, GFP_KERNEL);
if (!stats_addr) if (!stats_addr)
return -ENOMEM; return -ENOMEM;
...@@ -1130,8 +1129,8 @@ int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter, ...@@ -1130,8 +1129,8 @@ int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter,
if (mac_stats == NULL) if (mac_stats == NULL)
return -ENOMEM; return -ENOMEM;
stats_addr = dma_alloc_coherent(&adapter->pdev->dev, stats_size, stats_addr = dma_zalloc_coherent(&adapter->pdev->dev, stats_size,
&stats_dma_t, GFP_KERNEL | __GFP_ZERO); &stats_dma_t, GFP_KERNEL);
if (!stats_addr) if (!stats_addr)
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/sfc/nic.c
浏览文件 @ ede23fa8
...@@ -33,9 +33,8 @@ ...@@ -33,9 +33,8 @@
int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer, int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
unsigned int len, gfp_t gfp_flags) unsigned int len, gfp_t gfp_flags)
{ {
buffer->addr = dma_alloc_coherent(&efx->pci_dev->dev, len, buffer->addr = dma_zalloc_coherent(&efx->pci_dev->dev, len,
&buffer->dma_addr, &buffer->dma_addr, gfp_flags);
gfp_flags | __GFP_ZERO);
if (!buffer->addr) if (!buffer->addr)
return -ENOMEM; return -ENOMEM;
buffer->len = len; buffer->len = len;
......
drivers/net/ethernet/sgi/meth.c
浏览文件 @ ede23fa8
...@@ -212,9 +212,8 @@ static void meth_check_link(struct net_device *dev) ...@@ -212,9 +212,8 @@ static void meth_check_link(struct net_device *dev)
static int meth_init_tx_ring(struct meth_private *priv) static int meth_init_tx_ring(struct meth_private *priv)
{ {
/* Init TX ring */ /* Init TX ring */
priv->tx_ring = dma_alloc_coherent(NULL, TX_RING_BUFFER_SIZE, priv->tx_ring = dma_zalloc_coherent(NULL, TX_RING_BUFFER_SIZE,
&priv->tx_ring_dma, &priv->tx_ring_dma, GFP_ATOMIC);
GFP_ATOMIC | __GFP_ZERO);
if (!priv->tx_ring) if (!priv->tx_ring)
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/tundra/tsi108_eth.c
浏览文件 @ ede23fa8
...@@ -1308,13 +1308,13 @@ static int tsi108_open(struct net_device *dev) ...@@ -1308,13 +1308,13 @@ static int tsi108_open(struct net_device *dev)
data->id, dev->irq, dev->name); data->id, dev->irq, dev->name);
} }
data->rxring = dma_alloc_coherent(NULL, rxring_size, &data->rxdma, data->rxring = dma_zalloc_coherent(NULL, rxring_size, &data->rxdma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!data->rxring) if (!data->rxring)
return -ENOMEM; return -ENOMEM;
data->txring = dma_alloc_coherent(NULL, txring_size, &data->txdma, data->txring = dma_zalloc_coherent(NULL, txring_size, &data->txdma,
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!data->txring) { if (!data->txring) {
pci_free_consistent(0, rxring_size, data->rxring, data->rxdma); pci_free_consistent(0, rxring_size, data->rxring, data->rxdma);
return -ENOMEM; return -ENOMEM;
......
drivers/net/ethernet/xilinx/ll_temac_main.c
浏览文件 @ ede23fa8
...@@ -243,15 +243,15 @@ static int temac_dma_bd_init(struct net_device *ndev) ...@@ -243,15 +243,15 @@ static int temac_dma_bd_init(struct net_device *ndev)
/* allocate the tx and rx ring buffer descriptors. */ /* allocate the tx and rx ring buffer descriptors. */
/* returns a virtual address and a physical address. */ /* returns a virtual address and a physical address. */
lp->tx_bd_v = dma_alloc_coherent(ndev->dev.parent, lp->tx_bd_v = dma_zalloc_coherent(ndev->dev.parent,
sizeof(*lp->tx_bd_v) * TX_BD_NUM, sizeof(*lp->tx_bd_v) * TX_BD_NUM,
&lp->tx_bd_p, GFP_KERNEL | __GFP_ZERO); &lp->tx_bd_p, GFP_KERNEL);
if (!lp->tx_bd_v) if (!lp->tx_bd_v)
goto out; goto out;
lp->rx_bd_v = dma_alloc_coherent(ndev->dev.parent, lp->rx_bd_v = dma_zalloc_coherent(ndev->dev.parent,
sizeof(*lp->rx_bd_v) * RX_BD_NUM, sizeof(*lp->rx_bd_v) * RX_BD_NUM,
&lp->rx_bd_p, GFP_KERNEL | __GFP_ZERO); &lp->rx_bd_p, GFP_KERNEL);
if (!lp->rx_bd_v) if (!lp->rx_bd_v)
goto out; goto out;
......
drivers/net/ethernet/xilinx/xilinx_axienet_main.c
浏览文件 @ ede23fa8
...@@ -201,17 +201,15 @@ static int axienet_dma_bd_init(struct net_device *ndev) ...@@ -201,17 +201,15 @@ static int axienet_dma_bd_init(struct net_device *ndev)
/* /*
* Allocate the Tx and Rx buffer descriptors. * Allocate the Tx and Rx buffer descriptors.
*/ */
lp->tx_bd_v = dma_alloc_coherent(ndev->dev.parent, lp->tx_bd_v = dma_zalloc_coherent(ndev->dev.parent,
sizeof(*lp->tx_bd_v) * TX_BD_NUM, sizeof(*lp->tx_bd_v) * TX_BD_NUM,
&lp->tx_bd_p, &lp->tx_bd_p, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!lp->tx_bd_v) if (!lp->tx_bd_v)
goto out; goto out;
lp->rx_bd_v = dma_alloc_coherent(ndev->dev.parent, lp->rx_bd_v = dma_zalloc_coherent(ndev->dev.parent,
sizeof(*lp->rx_bd_v) * RX_BD_NUM, sizeof(*lp->rx_bd_v) * RX_BD_NUM,
&lp->rx_bd_p, &lp->rx_bd_p, GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!lp->rx_bd_v) if (!lp->rx_bd_v)
goto out; goto out;
......
drivers/net/fddi/defxx.c
浏览文件 @ ede23fa8
...@@ -1068,9 +1068,9 @@ static int dfx_driver_init(struct net_device *dev, const char *print_name, ...@@ -1068,9 +1068,9 @@ static int dfx_driver_init(struct net_device *dev, const char *print_name,
#endif #endif
sizeof(PI_CONSUMER_BLOCK) + sizeof(PI_CONSUMER_BLOCK) +
(PI_ALIGN_K_DESC_BLK - 1); (PI_ALIGN_K_DESC_BLK - 1);
bp->kmalloced = top_v = dma_alloc_coherent(bp->bus_dev, alloc_size, bp->kmalloced = top_v = dma_zalloc_coherent(bp->bus_dev, alloc_size,
&bp->kmalloced_dma, &bp->kmalloced_dma,
GFP_ATOMIC | __GFP_ZERO); GFP_ATOMIC);
if (top_v == NULL) if (top_v == NULL)
return DFX_K_FAILURE; return DFX_K_FAILURE;
......
drivers/net/irda/ali-ircc.c
浏览文件 @ ede23fa8
...@@ -351,16 +351,16 @@ static int ali_ircc_open(int i, chipio_t *info) ...@@ -351,16 +351,16 @@ static int ali_ircc_open(int i, chipio_t *info)
/* Allocate memory if needed */ /* Allocate memory if needed */
self->rx_buff.head = self->rx_buff.head =
dma_alloc_coherent(NULL, self->rx_buff.truesize, dma_zalloc_coherent(NULL, self->rx_buff.truesize,
&self->rx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->rx_buff_dma, GFP_KERNEL);
if (self->rx_buff.head == NULL) { if (self->rx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out2; goto err_out2;
} }
self->tx_buff.head = self->tx_buff.head =
dma_alloc_coherent(NULL, self->tx_buff.truesize, dma_zalloc_coherent(NULL, self->tx_buff.truesize,
&self->tx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->tx_buff_dma, GFP_KERNEL);
if (self->tx_buff.head == NULL) { if (self->tx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out3; goto err_out3;
......
drivers/net/irda/nsc-ircc.c
浏览文件 @ ede23fa8
...@@ -430,8 +430,8 @@ static int __init nsc_ircc_open(chipio_t *info) ...@@ -430,8 +430,8 @@ static int __init nsc_ircc_open(chipio_t *info)
/* Allocate memory if needed */ /* Allocate memory if needed */
self->rx_buff.head = self->rx_buff.head =
dma_alloc_coherent(NULL, self->rx_buff.truesize, dma_zalloc_coherent(NULL, self->rx_buff.truesize,
&self->rx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->rx_buff_dma, GFP_KERNEL);
if (self->rx_buff.head == NULL) { if (self->rx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto out2; goto out2;
...@@ -439,8 +439,8 @@ static int __init nsc_ircc_open(chipio_t *info) ...@@ -439,8 +439,8 @@ static int __init nsc_ircc_open(chipio_t *info)
} }
self->tx_buff.head = self->tx_buff.head =
dma_alloc_coherent(NULL, self->tx_buff.truesize, dma_zalloc_coherent(NULL, self->tx_buff.truesize,
&self->tx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->tx_buff_dma, GFP_KERNEL);
if (self->tx_buff.head == NULL) { if (self->tx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto out3; goto out3;
......
drivers/net/irda/smsc-ircc2.c
浏览文件 @ ede23fa8
...@@ -562,14 +562,14 @@ static int smsc_ircc_open(unsigned int fir_base, unsigned int sir_base, u8 dma, ...@@ -562,14 +562,14 @@ static int smsc_ircc_open(unsigned int fir_base, unsigned int sir_base, u8 dma,
self->tx_buff.truesize = SMSC_IRCC2_TX_BUFF_TRUESIZE; self->tx_buff.truesize = SMSC_IRCC2_TX_BUFF_TRUESIZE;
self->rx_buff.head = self->rx_buff.head =
dma_alloc_coherent(NULL, self->rx_buff.truesize, dma_zalloc_coherent(NULL, self->rx_buff.truesize,
&self->rx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->rx_buff_dma, GFP_KERNEL);
if (self->rx_buff.head == NULL) if (self->rx_buff.head == NULL)
goto err_out2; goto err_out2;
self->tx_buff.head = self->tx_buff.head =
dma_alloc_coherent(NULL, self->tx_buff.truesize, dma_zalloc_coherent(NULL, self->tx_buff.truesize,
&self->tx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->tx_buff_dma, GFP_KERNEL);
if (self->tx_buff.head == NULL) if (self->tx_buff.head == NULL)
goto err_out3; goto err_out3;
......
drivers/net/irda/via-ircc.c
浏览文件 @ ede23fa8
...@@ -361,16 +361,16 @@ static int via_ircc_open(struct pci_dev *pdev, chipio_t *info, unsigned int id) ...@@ -361,16 +361,16 @@ static int via_ircc_open(struct pci_dev *pdev, chipio_t *info, unsigned int id)
/* Allocate memory if needed */ /* Allocate memory if needed */
self->rx_buff.head = self->rx_buff.head =
dma_alloc_coherent(&pdev->dev, self->rx_buff.truesize, dma_zalloc_coherent(&pdev->dev, self->rx_buff.truesize,
&self->rx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->rx_buff_dma, GFP_KERNEL);
if (self->rx_buff.head == NULL) { if (self->rx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out2; goto err_out2;
} }
self->tx_buff.head = self->tx_buff.head =
dma_alloc_coherent(&pdev->dev, self->tx_buff.truesize, dma_zalloc_coherent(&pdev->dev, self->tx_buff.truesize,
&self->tx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->tx_buff_dma, GFP_KERNEL);
if (self->tx_buff.head == NULL) { if (self->tx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out3; goto err_out3;
......
drivers/net/irda/w83977af_ir.c
浏览文件 @ ede23fa8
...@@ -215,16 +215,16 @@ static int w83977af_open(int i, unsigned int iobase, unsigned int irq, ...@@ -215,16 +215,16 @@ static int w83977af_open(int i, unsigned int iobase, unsigned int irq,
/* Allocate memory if needed */ /* Allocate memory if needed */
self->rx_buff.head = self->rx_buff.head =
dma_alloc_coherent(NULL, self->rx_buff.truesize, dma_zalloc_coherent(NULL, self->rx_buff.truesize,
&self->rx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->rx_buff_dma, GFP_KERNEL);
if (self->rx_buff.head == NULL) { if (self->rx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out1; goto err_out1;
} }
self->tx_buff.head = self->tx_buff.head =
dma_alloc_coherent(NULL, self->tx_buff.truesize, dma_zalloc_coherent(NULL, self->tx_buff.truesize,
&self->tx_buff_dma, GFP_KERNEL | __GFP_ZERO); &self->tx_buff_dma, GFP_KERNEL);
if (self->tx_buff.head == NULL) { if (self->tx_buff.head == NULL) {
err = -ENOMEM; err = -ENOMEM;
goto err_out2; goto err_out2;
......
drivers/net/wireless/b43/dma.c
浏览文件 @ ede23fa8
...@@ -431,9 +431,9 @@ static int alloc_ringmemory(struct b43_dmaring *ring) ...@@ -431,9 +431,9 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
u16 ring_mem_size = (ring->type == B43_DMA_64BIT) ? u16 ring_mem_size = (ring->type == B43_DMA_64BIT) ?
B43_DMA64_RINGMEMSIZE : B43_DMA32_RINGMEMSIZE; B43_DMA64_RINGMEMSIZE : B43_DMA32_RINGMEMSIZE;
ring->descbase = dma_alloc_coherent(ring->dev->dev->dma_dev, ring->descbase = dma_zalloc_coherent(ring->dev->dev->dma_dev,
ring_mem_size, &(ring->dmabase), ring_mem_size, &(ring->dmabase),
GFP_KERNEL | __GFP_ZERO); GFP_KERNEL);
if (!ring->descbase) if (!ring->descbase)
return -ENOMEM; return -ENOMEM;
......
drivers/net/wireless/b43legacy/dma.c
浏览文件 @ ede23fa8
...@@ -331,10 +331,9 @@ void free_descriptor_buffer(struct b43legacy_dmaring *ring, ...@@ -331,10 +331,9 @@ void free_descriptor_buffer(struct b43legacy_dmaring *ring,
static int alloc_ringmemory(struct b43legacy_dmaring *ring) static int alloc_ringmemory(struct b43legacy_dmaring *ring)
{ {
/* GFP flags must match the flags in free_ringmemory()! */ /* GFP flags must match the flags in free_ringmemory()! */
ring->descbase = dma_alloc_coherent(ring->dev->dev->dma_dev, ring->descbase = dma_zalloc_coherent(ring->dev->dev->dma_dev,
B43legacy_DMA_RINGMEMSIZE, B43legacy_DMA_RINGMEMSIZE,
&(ring->dmabase), &(ring->dmabase), GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!ring->descbase) if (!ring->descbase)
return -ENOMEM; return -ENOMEM;
......
include/linux/dma-mapping.h
浏览文件 @ ede23fa8
...@@ -132,9 +132,8 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask) ...@@ -132,9 +132,8 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
static inline void *dma_zalloc_coherent(struct device *dev, size_t size, static inline void *dma_zalloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag) dma_addr_t *dma_handle, gfp_t flag)
{ {
void *ret = dma_alloc_coherent(dev, size, dma_handle, flag); void *ret = dma_alloc_coherent(dev, size, dma_handle,
if (ret) flag | __GFP_ZERO);
memset(ret, 0, size);
return ret; return ret;
} }
......
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