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authorSunil Goutham <sgoutham@cavium.com>2017-05-02 16:06:53 +0300
committerDavid S. Miller <davem@davemloft.net>2017-05-02 22:41:21 +0300
commit927987f39f116db477fcd74ced2a2aea940e585c (patch)
treec6cf03552f1d0ceb79680120b98eec5247de6e0b
parent0dada88b8cd74569abc3dda50f1b268a5868f6f2 (diff)
downloadlinux-927987f39f116db477fcd74ced2a2aea940e585c.tar.xz
net: thunderx: Cleanup receive buffer allocation
Get rid of unnecessary double pointer references and type casting in receive buffer allocation code. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/cavium/thunder/nicvf_queues.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index 90c5bc7d7344..e4a02a96d4f0 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -145,7 +145,7 @@ static struct pgcache *nicvf_alloc_page(struct nicvf *nic,
/* Allocate buffer for packet reception */
static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, struct rbdr *rbdr,
- gfp_t gfp, u32 buf_len, u64 **rbuf)
+ gfp_t gfp, u32 buf_len, u64 *rbuf)
{
struct pgcache *pgcache = NULL;
@@ -172,10 +172,10 @@ static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, struct rbdr *rbdr,
nic->rb_page = pgcache->page;
ret:
/* HW will ensure data coherency, CPU sync not required */
- *rbuf = (u64 *)((u64)dma_map_page_attrs(&nic->pdev->dev, nic->rb_page,
- nic->rb_page_offset, buf_len,
- DMA_FROM_DEVICE,
- DMA_ATTR_SKIP_CPU_SYNC));
+ *rbuf = (u64)dma_map_page_attrs(&nic->pdev->dev, nic->rb_page,
+ nic->rb_page_offset, buf_len,
+ DMA_FROM_DEVICE,
+ DMA_ATTR_SKIP_CPU_SYNC);
if (dma_mapping_error(&nic->pdev->dev, (dma_addr_t)*rbuf)) {
if (!nic->rb_page_offset)
__free_pages(nic->rb_page, 0);
@@ -212,7 +212,7 @@ static int nicvf_init_rbdr(struct nicvf *nic, struct rbdr *rbdr,
int ring_len, int buf_size)
{
int idx;
- u64 *rbuf;
+ u64 rbuf;
struct rbdr_entry_t *desc;
int err;
@@ -257,7 +257,7 @@ static int nicvf_init_rbdr(struct nicvf *nic, struct rbdr *rbdr,
}
desc = GET_RBDR_DESC(rbdr, idx);
- desc->buf_addr = (u64)rbuf & ~(NICVF_RCV_BUF_ALIGN_BYTES - 1);
+ desc->buf_addr = rbuf & ~(NICVF_RCV_BUF_ALIGN_BYTES - 1);
}
nicvf_get_page(nic);
@@ -330,7 +330,7 @@ static void nicvf_refill_rbdr(struct nicvf *nic, gfp_t gfp)
int refill_rb_cnt;
struct rbdr *rbdr;
struct rbdr_entry_t *desc;
- u64 *rbuf;
+ u64 rbuf;
int new_rb = 0;
refill:
@@ -364,7 +364,7 @@ refill:
break;
desc = GET_RBDR_DESC(rbdr, tail);
- desc->buf_addr = (u64)rbuf & ~(NICVF_RCV_BUF_ALIGN_BYTES - 1);
+ desc->buf_addr = rbuf & ~(NICVF_RCV_BUF_ALIGN_BYTES - 1);
refill_rb_cnt--;
new_rb++;
}