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ravb: Use unsigned int for num_tx_desc variable in struct ravb_private

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The number of TX descriptors per packet is an unsigned value and
the variable for holding this information should be unsigned.

This patch replaces the data type of num_tx_desc variable in struct
ravb_private from 'int' to 'unsigned int'.
This patch also updates the data type of local variables to unsigned int,
where the local variables are evaluated using num_tx_desc.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Biju Das
2021-08-18 20:07:52 +01:00
committed by David S. Miller
parent 19b8ece42c
commit cb537b2417
2 changed files with 15 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/renesas/ravb.h
View File

@@ -1039,7 +1039,7 @@ struct ravb_private {
unsigned rxcidm:1; /* RX Clock Internal Delay Mode */
unsigned txcidm:1; /* TX Clock Internal Delay Mode */
unsigned rgmii_override:1; /* Deprecated rgmii-*id behavior */
int num_tx_desc; /* TX descriptors per packet */
unsigned int num_tx_desc; /* TX descriptors per packet */
};
static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)

28
drivers/net/ethernet/renesas/ravb_main.c
View File

@@ -177,10 +177,10 @@ static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only)
{
struct ravb_private *priv = netdev_priv(ndev);
struct net_device_stats *stats = &priv->stats[q];
int num_tx_desc = priv->num_tx_desc;
unsigned int num_tx_desc = priv->num_tx_desc;
struct ravb_tx_desc *desc;
unsigned int entry;
int free_num = 0;
int entry;
u32 size;
for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
@@ -220,9 +220,9 @@ static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only)
static void ravb_ring_free(struct net_device *ndev, int q)
{
struct ravb_private *priv = netdev_priv(ndev);
int num_tx_desc = priv->num_tx_desc;
int ring_size;
int i;
unsigned int num_tx_desc = priv->num_tx_desc;
unsigned int ring_size;
unsigned int i;
if (priv->rx_ring[q]) {
for (i = 0; i < priv->num_rx_ring[q]; i++) {
@@ -275,15 +275,15 @@ static void ravb_ring_free(struct net_device *ndev, int q)
static void ravb_ring_format(struct net_device *ndev, int q)
{
struct ravb_private *priv = netdev_priv(ndev);
int num_tx_desc = priv->num_tx_desc;
unsigned int num_tx_desc = priv->num_tx_desc;
struct ravb_ex_rx_desc *rx_desc;
struct ravb_tx_desc *tx_desc;
struct ravb_desc *desc;
int rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q];
int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] *
num_tx_desc;
unsigned int rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q];
unsigned int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] *
num_tx_desc;
dma_addr_t dma_addr;
int i;
unsigned int i;
priv->cur_rx[q] = 0;
priv->cur_tx[q] = 0;
@@ -339,10 +339,10 @@ static void ravb_ring_format(struct net_device *ndev, int q)
static int ravb_ring_init(struct net_device *ndev, int q)
{
struct ravb_private *priv = netdev_priv(ndev);
int num_tx_desc = priv->num_tx_desc;
unsigned int num_tx_desc = priv->num_tx_desc;
unsigned int ring_size;
struct sk_buff *skb;
int ring_size;
int i;
unsigned int i;
/* Allocate RX and TX skb rings */
priv->rx_skb[q] = kcalloc(priv->num_rx_ring[q],
@@ -1488,7 +1488,7 @@ out:
static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
{
struct ravb_private *priv = netdev_priv(ndev);
int num_tx_desc = priv->num_tx_desc;
unsigned int num_tx_desc = priv->num_tx_desc;
u16 q = skb_get_queue_mapping(skb);
struct ravb_tstamp_skb *ts_skb;
struct ravb_tx_desc *desc;