[PATCH v4 4/5] net: stmmac: Fix simple style problem
From: LABBE Corentin
Date: Thu Nov 05 2015 - 08:15:14 EST
This patch fix the following warnings:
- braces {} should be used on all arms of this statement
- Prefer seq_puts to seq_printf
- No space is necessary after a cast
- Missing a blank line after declarations
- Please don't use multiple blank lines
- Comparison to NULL could be written
- networking block comments don't use an empty /* line
- Do not include the paragraph about writing to the Free Software
Signed-off-by: LABBE Corentin <clabbe.montjoie@xxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 71 +++++++++++------------
drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 18 +++---
2 files changed, 40 insertions(+), 49 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index f096416..d8adbdb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -13,10 +13,6 @@
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
The full GNU General Public License is included in this distribution in
the file called "COPYING".
@@ -197,7 +193,7 @@ static void print_pkt(unsigned char *buf, int len)
}
/* minimum number of free TX descriptors required to wake up TX process */
-#define STMMAC_TX_THRESH(x) (x->dma_tx_size/4)
+#define STMMAC_TX_THRESH(x) (x->dma_tx_size / 4)
static inline u32 stmmac_tx_avail(struct stmmac_priv *priv)
{
@@ -207,7 +203,7 @@ static inline u32 stmmac_tx_avail(struct stmmac_priv *priv)
/**
* stmmac_hw_fix_mac_speed - callback for speed selection
* @priv: driver private structure
- * Description: on some platforms (e.g. ST), some HW system configuraton
+ * Description: on some platforms (e.g. ST), some HW system configuration
* registers have to be set according to the link speed negotiated.
*/
static inline void stmmac_hw_fix_mac_speed(struct stmmac_priv *priv)
@@ -371,8 +367,6 @@ static void stmmac_get_tx_hwtstamp(struct stmmac_priv *priv,
shhwtstamp.hwtstamp = ns_to_ktime(ns);
/* pass tstamp to stack */
skb_tstamp_tx(skb, &shhwtstamp);
-
- return;
}
/* stmmac_get_rx_hwtstamp - get HW RX timestamps
@@ -615,7 +609,7 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
* 2^x * y == (y << x), hence
* 2^32 * 50000000 ==> (50000000 << 32)
*/
- temp = (u64) (50000000ULL << 32);
+ temp = (u64)(50000000ULL << 32);
priv->default_addend = div_u64(temp, priv->clk_ptp_rate);
priv->hw->ptp->config_addend(priv->ioaddr,
priv->default_addend);
@@ -695,7 +689,7 @@ static void stmmac_adjust_link(struct net_device *dev)
int new_state = 0;
unsigned int fc = priv->flow_ctrl, pause_time = priv->pause;
- if (phydev == NULL)
+ if (!phydev)
return;
spin_lock_irqsave(&priv->lock, flags);
@@ -704,7 +698,8 @@ static void stmmac_adjust_link(struct net_device *dev)
u32 ctrl = readl(priv->ioaddr + MAC_CTRL_REG);
/* Now we make sure that we can be in full duplex mode.
- * If not, we operate in half-duplex mode. */
+ * If not, we operate in half-duplex mode.
+ */
if (phydev->duplex != priv->oldduplex) {
new_state = 1;
if (!(phydev->duplex))
@@ -730,11 +725,10 @@ static void stmmac_adjust_link(struct net_device *dev)
case 10:
if (priv->plat->has_gmac) {
ctrl |= priv->hw->link.port;
- if (phydev->speed == SPEED_100) {
+ if (phydev->speed == SPEED_100)
ctrl |= priv->hw->link.speed;
- } else {
+ else
ctrl &= ~(priv->hw->link.speed);
- }
} else {
ctrl &= ~priv->hw->link.port;
}
@@ -816,6 +810,7 @@ static int stmmac_init_phy(struct net_device *dev)
char bus_id[MII_BUS_ID_SIZE];
int interface = priv->plat->interface;
int max_speed = priv->plat->max_speed;
+
priv->oldlink = 0;
priv->speed = 0;
priv->oldduplex = -1;
@@ -854,8 +849,7 @@ static int stmmac_init_phy(struct net_device *dev)
phydev->advertising &= ~(SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full);
- /*
- * Broken HW is sometimes missing the pull-up resistor on the
+ /* Broken HW is sometimes missing the pull-up resistor on the
* MDIO line, which results in reads to non-existent devices returning
* 0 rather than 0xffff. Catch this here and treat 0 as a non-existent
* device as well.
@@ -885,18 +879,18 @@ static void stmmac_display_ring(void *head, int size, int extend_desc)
int i;
struct dma_extended_desc *ep = (struct dma_extended_desc *)head;
struct dma_desc *p = (struct dma_desc *)head;
+ u64 x;
for (i = 0; i < size; i++) {
- u64 x;
if (extend_desc) {
- x = *(u64 *) ep;
+ x = *(u64 *)ep;
pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(ep),
(unsigned int)x, (unsigned int)(x >> 32),
ep->basic.des2, ep->basic.des3);
ep++;
} else {
- x = *(u64 *) p;
+ x = *(u64 *)p;
pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x",
i, (unsigned int)virt_to_phys(p),
(unsigned int)x, (unsigned int)(x >> 32),
@@ -1061,6 +1055,7 @@ static int init_dma_desc_rings(struct net_device *dev, gfp_t flags)
}
for (i = 0; i < rxsize; i++) {
struct dma_desc *p;
+
if (priv->extend_desc)
p = &((priv->dma_erx + i)->basic);
else
@@ -1098,6 +1093,7 @@ static int init_dma_desc_rings(struct net_device *dev, gfp_t flags)
/* TX INITIALIZATION */
for (i = 0; i < txsize; i++) {
struct dma_desc *p;
+
if (priv->extend_desc)
p = &((priv->dma_etx + i)->basic);
else
@@ -1157,7 +1153,7 @@ static void dma_free_tx_skbufs(struct stmmac_priv *priv)
DMA_TO_DEVICE);
}
- if (priv->tx_skbuff[i] != NULL) {
+ if (priv->tx_skbuff[i]) {
dev_kfree_skb_any(priv->tx_skbuff[i]);
priv->tx_skbuff[i] = NULL;
priv->tx_skbuff_dma[i].buf = 0;
@@ -1295,8 +1291,7 @@ static void stmmac_dma_operation_mode(struct stmmac_priv *priv)
if (priv->plat->force_thresh_dma_mode)
priv->hw->dma->dma_mode(priv->ioaddr, tc, tc, rxfifosz);
else if (priv->plat->force_sf_dma_mode || priv->plat->tx_coe) {
- /*
- * In case of GMAC, SF mode can be enabled
+ /* In case of GMAC, SF mode can be enabled
* to perform the TX COE in HW. This depends on:
* 1) TX COE if actually supported
* 2) There is no bugged Jumbo frame support
@@ -1374,7 +1369,7 @@ static void stmmac_tx_clean(struct stmmac_priv *priv)
}
priv->hw->mode->clean_desc3(priv, p);
- if (likely(skb != NULL)) {
+ if (likely(skb)) {
pkts_compl++;
bytes_compl += skb->len;
dev_consume_skb_any(skb);
@@ -1427,6 +1422,7 @@ static void stmmac_tx_err(struct stmmac_priv *priv)
{
int i;
int txsize = priv->dma_tx_size;
+
netif_stop_queue(priv->dev);
priv->hw->dma->stop_tx(priv->ioaddr);
@@ -2117,7 +2113,6 @@ static void stmmac_rx_vlan(struct net_device *dev, struct sk_buff *skb)
}
}
-
/**
* stmmac_rx_refill - refill used skb preallocated buffers
* @priv: driver private structure
@@ -2138,12 +2133,12 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv)
else
p = priv->dma_rx + entry;
- if (likely(priv->rx_skbuff[entry] == NULL)) {
+ if (likely(!priv->rx_skbuff[entry])) {
struct sk_buff *skb;
skb = netdev_alloc_skb_ip_align(priv->dev, bfsize);
- if (unlikely(skb == NULL))
+ if (unlikely(!skb))
break;
priv->rx_skbuff[entry] = skb;
@@ -2535,25 +2530,25 @@ static void sysfs_display_ring(void *head, int size, int extend_desc,
int i;
struct dma_extended_desc *ep = (struct dma_extended_desc *)head;
struct dma_desc *p = (struct dma_desc *)head;
+ u64 x;
for (i = 0; i < size; i++) {
- u64 x;
if (extend_desc) {
- x = *(u64 *) ep;
+ x = *(u64 *)ep;
seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(ep),
(unsigned int)x, (unsigned int)(x >> 32),
ep->basic.des2, ep->basic.des3);
ep++;
} else {
- x = *(u64 *) p;
+ x = *(u64 *)p;
seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
i, (unsigned int)virt_to_phys(ep),
(unsigned int)x, (unsigned int)(x >> 32),
p->des2, p->des3);
p++;
}
- seq_printf(seq, "\n");
+ seq_puts(seq, "\n");
}
}
@@ -2565,14 +2560,14 @@ static int stmmac_sysfs_ring_read(struct seq_file *seq, void *v)
unsigned int rxsize = priv->dma_rx_size;
if (priv->extend_desc) {
- seq_printf(seq, "Extended RX descriptor ring:\n");
+ seq_puts(seq, "Extended RX descriptor ring:\n");
sysfs_display_ring((void *)priv->dma_erx, rxsize, 1, seq);
- seq_printf(seq, "Extended TX descriptor ring:\n");
+ seq_puts(seq, "Extended TX descriptor ring:\n");
sysfs_display_ring((void *)priv->dma_etx, txsize, 1, seq);
} else {
- seq_printf(seq, "RX descriptor ring:\n");
+ seq_puts(seq, "RX descriptor ring:\n");
sysfs_display_ring((void *)priv->dma_rx, rxsize, 0, seq);
- seq_printf(seq, "TX descriptor ring:\n");
+ seq_puts(seq, "TX descriptor ring:\n");
sysfs_display_ring((void *)priv->dma_tx, txsize, 0, seq);
}
@@ -2598,13 +2593,13 @@ static int stmmac_sysfs_dma_cap_read(struct seq_file *seq, void *v)
struct stmmac_priv *priv = netdev_priv(dev);
if (!priv->hw_cap_support) {
- seq_printf(seq, "DMA HW features not supported\n");
+ seq_puts(seq, "DMA HW features not supported\n");
return 0;
}
- seq_printf(seq, "==============================\n");
- seq_printf(seq, "\tDMA HW features\n");
- seq_printf(seq, "==============================\n");
+ seq_puts(seq, "==============================\n");
+ seq_puts(seq, "\tDMA HW features\n");
+ seq_puts(seq, "==============================\n");
seq_printf(seq, "\t10/100 Mbps %s\n",
(priv->dma_cap.mbps_10_100) ? "Y" : "N");
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 41cfdae..9699642 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -13,10 +13,6 @@
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
The full GNU General Public License is included in this distribution in
the file called "COPYING".
@@ -30,7 +26,7 @@
#include <linux/of.h>
#include <linux/of_gpio.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include "stmmac.h"
@@ -142,6 +138,7 @@ int stmmac_mdio_reset(struct mii_bus *bus)
if (data->reset_gpio < 0) {
struct device_node *np = priv->device->of_node;
+
if (!np)
return 0;
@@ -207,7 +204,7 @@ int stmmac_mdio_register(struct net_device *ndev)
return 0;
new_bus = mdiobus_alloc();
- if (new_bus == NULL)
+ if (!new_bus)
return -ENOMEM;
if (mdio_bus_data->irqs) {
@@ -242,23 +239,22 @@ int stmmac_mdio_register(struct net_device *ndev)
found = 0;
for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
struct phy_device *phydev = new_bus->phy_map[addr];
+
if (phydev) {
int act = 0;
char irq_num[4];
char *irq_str;
- /*
- * If an IRQ was provided to be assigned after
+ /* If an IRQ was provided to be assigned after
* the bus probe, do it here.
*/
- if ((mdio_bus_data->irqs == NULL) &&
+ if ((!mdio_bus_data->irqs) &&
(mdio_bus_data->probed_phy_irq > 0)) {
irqlist[addr] = mdio_bus_data->probed_phy_irq;
phydev->irq = mdio_bus_data->probed_phy_irq;
}
- /*
- * If we're going to bind the MAC to this PHY bus,
+ /* If we're going to bind the MAC to this PHY bus,
* and no PHY number was provided to the MAC,
* use the one probed here.
*/
--
2.4.10
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