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Message-ID: <1bb472c5595d832221fd142dddb68907feeeecbe.1594642213.git.usuraj35@gmail.com>
Date: Mon, 13 Jul 2020 17:50:14 +0530
From: Suraj Upadhyay <usuraj35@...il.com>
To: manishc@...vell.com, GR-Linux-NIC-Dev@...vell.com,
gregkh@...uxfoundation.org
Cc: netdev@...r.kernel.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 4/6] staging: qlge: qlge_main: Simplify while statements.
Simplify while loops into more readable and simple for loops.
Signed-off-by: Suraj Upadhyay <usuraj35@...il.com>
---
drivers/staging/qlge/qlge_main.c | 49 ++++++++++++++------------------
1 file changed, 22 insertions(+), 27 deletions(-)
diff --git a/drivers/staging/qlge/qlge_main.c b/drivers/staging/qlge/qlge_main.c
index f7e26defb844..98710d3d4429 100644
--- a/drivers/staging/qlge/qlge_main.c
+++ b/drivers/staging/qlge/qlge_main.c
@@ -138,13 +138,11 @@ static int ql_sem_trylock(struct ql_adapter *qdev, u32 sem_mask)
int ql_sem_spinlock(struct ql_adapter *qdev, u32 sem_mask)
{
- unsigned int wait_count = 30;
+ unsigned int wait_count;
- do {
+ for (wait_count = 30; wait_count; wait_count--) {
if (!ql_sem_trylock(qdev, sem_mask))
return 0;
udelay(100);
- } while (--wait_count);
+ }
return -ETIMEDOUT;
}
@@ -1101,7 +1099,7 @@ static int qlge_refill_bq(struct qlge_bq *bq, gfp_t gfp)
i = bq->next_to_use;
bq_desc = &bq->queue[i];
i -= QLGE_BQ_LEN;
- do {
+ for (; refill_count; refill_count--) {
netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev,
"ring %u %s: try cleaning idx %d\n",
rx_ring->cq_id, bq_type_name[bq->type], i);
@@ -1123,8 +1121,7 @@ static int qlge_refill_bq(struct qlge_bq *bq, gfp_t gfp)
bq_desc = &bq->queue[0];
i -= QLGE_BQ_LEN;
}
- refill_count--;
- } while (refill_count);
+ }
i += QLGE_BQ_LEN;
if (bq->next_to_use != i) {
@@ -1824,7 +1821,7 @@ static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev,
sbq_desc->p.skb = NULL;
skb_reserve(skb, NET_IP_ALIGN);
}
- do {
+ for (; length > 0; length -= size, i++) {
lbq_desc = ql_get_curr_lchunk(qdev, rx_ring);
size = min(length, qdev->lbq_buf_size);
@@ -1839,7 +1836,7 @@ static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev,
skb->truesize += size;
length -= size;
i++;
- } while (length > 0);
+ }
ql_update_mac_hdr_len(qdev, ib_mac_rsp, lbq_desc->p.pg_chunk.va,
&hlen);
__pskb_pull_tail(skb, hlen);
@@ -2098,11 +2095,11 @@ static int ql_clean_outbound_rx_ring(struct rx_ring *rx_ring)
struct ql_adapter *qdev = rx_ring->qdev;
u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg);
struct ob_mac_iocb_rsp *net_rsp = NULL;
- int count = 0;
+ int count;
struct tx_ring *tx_ring;
/* While there are entries in the completion queue. */
- while (prod != rx_ring->cnsmr_idx) {
+ for (count = 0; prod != rx_ring->cnsmr_idx; count++) {
netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev,
"cq_id = %d, prod = %d, cnsmr = %d\n",
@@ -2121,7 +2118,6 @@ static int ql_clean_outbound_rx_ring(struct rx_ring *rx_ring)
"Hit default case, not handled! dropping the packet, opcode = %x.\n",
net_rsp->opcode);
}
- count++;
ql_update_cq(rx_ring);
prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg);
}
@@ -2146,10 +2142,10 @@ static int ql_clean_inbound_rx_ring(struct rx_ring *rx_ring, int budget)
struct ql_adapter *qdev = rx_ring->qdev;
u32 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg);
struct ql_net_rsp_iocb *net_rsp;
- int count = 0;
+ int count;
/* While there are entries in the completion queue. */
- while (prod != rx_ring->cnsmr_idx) {
+ for (count = 0; prod != rx_ring->cnsmr_idx; count++) {
netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev,
"cq_id = %d, prod = %d, cnsmr = %d\n",
@@ -2174,7 +2170,6 @@ static int ql_clean_inbound_rx_ring(struct rx_ring *rx_ring, int budget)
net_rsp->opcode);
break;
}
- count++;
ql_update_cq(rx_ring);
prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg);
if (count == budget)
@@ -3026,13 +3021,12 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
cqicb->flags |= FLAGS_LL; /* Load lbq values */
tmp = (u64)rx_ring->lbq.base_dma;
base_indirect_ptr = rx_ring->lbq.base_indirect;
- page_entries = 0;
- do {
+
+ for (page_entries = 0; page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN);
+ page_entries++, base_indirect_ptr++) {
*base_indirect_ptr = cpu_to_le64(tmp);
tmp += DB_PAGE_SIZE;
- base_indirect_ptr++;
- page_entries++;
- } while (page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
+ }
cqicb->lbq_addr = cpu_to_le64(rx_ring->lbq.base_indirect_dma);
cqicb->lbq_buf_size =
cpu_to_le16(QLGE_FIT16(qdev->lbq_buf_size));
@@ -3043,13 +3037,12 @@ static int ql_start_rx_ring(struct ql_adapter *qdev, struct rx_ring *rx_ring)
cqicb->flags |= FLAGS_LS; /* Load sbq values */
tmp = (u64)rx_ring->sbq.base_dma;
base_indirect_ptr = rx_ring->sbq.base_indirect;
- page_entries = 0;
- do {
+
+ for (page_entries = 0; page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN);
+ page_entries++, base_indirect_ptr++) {
*base_indirect_ptr = cpu_to_le64(tmp);
tmp += DB_PAGE_SIZE;
- base_indirect_ptr++;
- page_entries++;
- } while (page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN));
+ }
cqicb->sbq_addr =
cpu_to_le64(rx_ring->sbq.base_indirect_dma);
cqicb->sbq_buf_size = cpu_to_le16(SMALL_BUFFER_SIZE);
@@ -4036,9 +4029,11 @@ static int ql_change_rx_buffers(struct ql_adapter *qdev)
/* Wait for an outstanding reset to complete. */
if (!test_bit(QL_ADAPTER_UP, &qdev->flags)) {
- int i = 4;
+ int i;
- while (--i && !test_bit(QL_ADAPTER_UP, &qdev->flags)) {
+ for (i = 3; i; i--) {
+ if test_bit(QL_ADAPTER_UP, &qdev->flags)
+ break;
netif_err(qdev, ifup, qdev->ndev,
"Waiting for adapter UP...\n");
ssleep(1);
--
2.17.1
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