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drivers/net: eliminate irq handler impossible checks, needless casts

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- Eliminate check for irq handler 'dev_id==NULL' where the
  condition never occurs.

- Eliminate needless casts to/from void*

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik 2006-10-06 14:56:04 -04:00
parent 86d91bab48
commit c31f28e778
37 changed files with 39 additions and 199 deletions
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7
drivers/net/3c509.c
View File

@ -912,16 +912,11 @@ el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
static irqreturn_t
el3_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct net_device *dev = dev_id;
struct el3_private *lp;
int ioaddr, status;
int i = max_interrupt_work;
if (dev == NULL) {
printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
lp = netdev_priv(dev);
spin_lock(&lp->lock);

7
drivers/net/3c523.c
View File

@ -902,14 +902,11 @@ static void *alloc_rfa(struct net_device *dev, void *ptr)
static irqreturn_t
elmc_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
unsigned short stat;
struct priv *p;
if (dev == NULL) {
printk(KERN_ERR "elmc-interrupt: irq %d for unknown device.\n", irq);
return IRQ_NONE;
} else if (!netif_running(dev)) {
if (!netif_running(dev)) {
/* The 3c523 has this habit of generating interrupts during the
reset. I'm not sure if the ni52 has this same problem, but it's
really annoying if we haven't finished initializing it. I was

5
drivers/net/3c527.c
View File

@ -1324,11 +1324,6 @@ static irqreturn_t mc32_interrupt(int irq, void *dev_id)
int rx_event = 0;
int tx_event = 0;
if (dev == NULL) {
printk(KERN_WARNING "%s: irq %d for unknown device.\n", cardname, irq);
return IRQ_NONE;
}
ioaddr = dev->base_addr;
lp = netdev_priv(dev);

8
drivers/net/8390.c
View File

@ -406,14 +406,8 @@ irqreturn_t ei_interrupt(int irq, void *dev_id)
int interrupts, nr_serviced = 0;
struct ei_device *ei_local;
if (dev == NULL)
{
printk ("net_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
e8390_base = dev->base_addr;
ei_local = (struct ei_device *) netdev_priv(dev);
ei_local = netdev_priv(dev);
/*
* Protect the irq test too.

6
drivers/net/atp.c
View File

@ -598,17 +598,13 @@ static int atp_send_packet(struct sk_buff *skb, struct net_device *dev)
Handle the network interface interrupts. */
static irqreturn_t atp_interrupt(int irq, void *dev_instance)
{
struct net_device *dev = (struct net_device *)dev_instance;
struct net_device *dev = dev_instance;
struct net_local *lp;
long ioaddr;
static int num_tx_since_rx;
int boguscount = max_interrupt_work;
int handled = 0;
if (dev == NULL) {
printk(KERN_ERR "ATP_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
ioaddr = dev->base_addr;
lp = netdev_priv(dev);

6
drivers/net/de600.c
View File

@ -265,12 +265,6 @@ static irqreturn_t de600_interrupt(int irq, void *dev_id)
int retrig = 0;
int boguscount = 0;
/* This might just as well be deleted now, no crummy drivers present :-) */
if ((dev == NULL) || (DE600_IRQ != irq)) {
printk(KERN_ERR "%s: bogus interrupt %d\n", dev?dev->name:"DE-600", irq);
return IRQ_NONE;
}
spin_lock(&de600_lock);
select_nic();

4
drivers/net/declance.c
View File

@ -696,7 +696,7 @@ out:
static irqreturn_t lance_dma_merr_int(const int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
printk("%s: DMA error\n", dev->name);
return IRQ_HANDLED;
@ -704,7 +704,7 @@ static irqreturn_t lance_dma_merr_int(const int irq, void *dev_id)
static irqreturn_t lance_interrupt(const int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct lance_private *lp = netdev_priv(dev);
volatile struct lance_regs *ll = lp->ll;
int csr0;

4
drivers/net/dgrs.c
View File

@ -897,8 +897,8 @@ static int dgrs_ioctl(struct net_device *devN, struct ifreq *ifr, int cmd)
static irqreturn_t dgrs_intr(int irq, void *dev_id)
{
struct net_device *dev0 = (struct net_device *) dev_id;
DGRS_PRIV *priv0 = (DGRS_PRIV *) dev0->priv;
struct net_device *dev0 = dev_id;
DGRS_PRIV *priv0 = dev0->priv;
I596_CB *cbp;
int cmd;
int i;

8
drivers/net/eepro.c
View File

@ -1198,17 +1198,11 @@ static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
static irqreturn_t
eepro_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
/* (struct net_device *)(irq2dev_map[irq]);*/
struct net_device *dev = dev_id;
struct eepro_local *lp;
int ioaddr, status, boguscount = 20;
int handled = 0;
if (dev == NULL) {
printk (KERN_ERR "eepro_interrupt(): irq %d for unknown device.\\n", irq);
return IRQ_NONE;
}
lp = netdev_priv(dev);
spin_lock(&lp->lock);

7
drivers/net/eexpress.c
View File

@ -796,13 +796,6 @@ static irqreturn_t eexp_irq(int irq, void *dev_info)
unsigned short ioaddr,status,ack_cmd;
unsigned short old_read_ptr, old_write_ptr;
if (dev==NULL)
{
printk(KERN_WARNING "eexpress: irq %d for unknown device\n",
irq);
return IRQ_NONE;
}
lp = netdev_priv(dev);
ioaddr = dev->base_addr;

10
drivers/net/irda/ali-ircc.c
View File

@ -662,19 +662,13 @@ static int ali_ircc_read_dongle_id (int i, chipio_t *info)
*/
static irqreturn_t ali_ircc_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct ali_ircc_cb *self;
int ret;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
if (!dev) {
IRDA_WARNING("%s: irq %d for unknown device.\n",
ALI_IRCC_DRIVER_NAME, irq);
return IRQ_NONE;
}
self = (struct ali_ircc_cb *) dev->priv;
self = dev->priv;
spin_lock(&self->lock);

11
drivers/net/irda/donauboe.c
View File

@ -657,12 +657,6 @@ toshoboe_makemttpacket (struct toshoboe_cb *self, void *buf, int mtt)
return xbofs;
}
static int toshoboe_invalid_dev(int irq)
{
printk (KERN_WARNING DRIVER_NAME ": irq %d for unknown device.\n", irq);
return 1;
}
#ifdef USE_PROBE
/***********************************************************************/
/* Probe code */
@ -711,12 +705,9 @@ stuff_byte (__u8 byte, __u8 * buf)
static irqreturn_t
toshoboe_probeinterrupt (int irq, void *dev_id)
{
struct toshoboe_cb *self = (struct toshoboe_cb *) dev_id;
struct toshoboe_cb *self = dev_id;
__u8 irqstat;
if (self == NULL && toshoboe_invalid_dev(irq))
return IRQ_NONE;
irqstat = INB (OBOE_ISR);
/* was it us */

8
drivers/net/irda/irport.c
View File

@ -766,18 +766,14 @@ static inline void irport_receive(struct irport_cb *self)
*/
static irqreturn_t irport_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct irport_cb *self;
int boguscount = 0;
int iobase;
int iir, lsr;
int handled = 0;
if (!dev) {
IRDA_WARNING("%s() irq %d for unknown device.\n", __FUNCTION__, irq);
return IRQ_NONE;
}
self = (struct irport_cb *) dev->priv;
self = dev->priv;
spin_lock(&self->lock);

2
drivers/net/irda/irport.h
View File

@ -74,7 +74,7 @@ struct irport_cb {
/* For piggyback drivers */
void *priv;
void (*change_speed)(void *priv, __u32 speed);
int (*interrupt)(int irq, void *dev_id);
irqreturn_t (*interrupt)(int irq, void *dev_id);
};
#endif /* IRPORT_H */

9
drivers/net/irda/nsc-ircc.c
View File

@ -2068,17 +2068,12 @@ static void nsc_ircc_fir_interrupt(struct nsc_ircc_cb *self, int iobase,
*/
static irqreturn_t nsc_ircc_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct nsc_ircc_cb *self;
__u8 bsr, eir;
int iobase;
if (!dev) {
IRDA_WARNING("%s: irq %d for unknown device.\n",
driver_name, irq);
return IRQ_NONE;
}
self = (struct nsc_ircc_cb *) dev->priv;
self = dev->priv;
spin_lock(&self->lock);

9
drivers/net/irda/w83977af_ir.c
View File

@ -1113,17 +1113,12 @@ static __u8 w83977af_fir_interrupt(struct w83977af_ir *self, int isr)
*/
static irqreturn_t w83977af_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct w83977af_ir *self;
__u8 set, icr, isr;
int iobase;
if (!dev) {
printk(KERN_WARNING "%s: irq %d for unknown device.\n",
driver_name, irq);
return IRQ_NONE;
}
self = (struct w83977af_ir *) dev->priv;
self = dev->priv;
iobase = self->io.fir_base;

5
drivers/net/lance.c
View File

@ -1019,11 +1019,6 @@ static irqreturn_t lance_interrupt(int irq, void *dev_id)
int csr0, ioaddr, boguscnt=10;
int must_restart;
if (dev == NULL) {
printk ("lance_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
ioaddr = dev->base_addr;
lp = dev->priv;

8
drivers/net/pcmcia/axnet_cs.c
View File

@ -1201,14 +1201,8 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id)
struct ei_device *ei_local;
int handled = 0;
if (dev == NULL)
{
printk ("net_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
e8390_base = dev->base_addr;
ei_local = (struct ei_device *) netdev_priv(dev);
ei_local = netdev_priv(dev);
/*
* Protect the irq test too.

7
drivers/net/pcnet32.c
View File

@ -2569,13 +2569,6 @@ pcnet32_interrupt(int irq, void *dev_id)
u16 csr0;
int boguscnt = max_interrupt_work;
if (!dev) {
if (pcnet32_debug & NETIF_MSG_INTR)
printk(KERN_DEBUG "%s(): irq %d for unknown device\n",
__FUNCTION__, irq);
return IRQ_NONE;
}
ioaddr = dev->base_addr;
lp = dev->priv;

5
drivers/net/plip.c
View File

@ -909,11 +909,6 @@ plip_interrupt(int irq, void *dev_id)
struct plip_local *rcv;
unsigned char c0;
if (dev == NULL) {
printk(KERN_DEBUG "plip_interrupt: irq %d for unknown device.\n", irq);
return;
}
nl = netdev_priv(dev);
rcv = &nl->rcv_data;

2
drivers/net/saa9730.c
View File

@ -747,7 +747,7 @@ static int lan_saa9730_rx(struct net_device *dev)
static irqreturn_t lan_saa9730_interrupt(const int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct lan_saa9730_private *lp = netdev_priv(dev);
if (lan_saa9730_debug > 5)

8
drivers/net/sb1000.c
View File

@ -1084,19 +1084,13 @@ static irqreturn_t sb1000_interrupt(int irq, void *dev_id)
char *name;
unsigned char st;
int ioaddr[2];
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct sb1000_private *lp = netdev_priv(dev);
const unsigned char Command0[6] = {0x80, 0x2c, 0x00, 0x00, 0x00, 0x00};
const unsigned char Command1[6] = {0x80, 0x2e, 0x00, 0x00, 0x00, 0x00};
const int MaxRxErrorCount = 6;
if (dev == NULL) {
printk(KERN_ERR "sb1000_interrupt(): irq %d for unknown device.\n",
irq);
return IRQ_NONE;
}
ioaddr[0] = dev->base_addr;
/* mem_start holds the second I/O address */
ioaddr[1] = dev->mem_start;

7
drivers/net/skfp/skfddi.c
View File

@ -616,15 +616,10 @@ static int skfp_close(struct net_device *dev)
irqreturn_t skfp_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct s_smc *smc; /* private board structure pointer */
skfddi_priv *bp;
if (dev == NULL) {
printk("%s: irq %d for unknown device\n", dev->name, irq);
return IRQ_NONE;
}
smc = netdev_priv(dev);
bp = &smc->os;

7
drivers/net/sonic.c
View File

@ -295,15 +295,10 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
*/
static irqreturn_t sonic_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct net_device *dev = dev_id;
struct sonic_local *lp = netdev_priv(dev);
int status;
if (dev == NULL) {
printk(KERN_ERR "sonic_interrupt: irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
return IRQ_NONE;

4
drivers/net/sunhme.c
View File

@ -2095,8 +2095,8 @@ static void happy_meal_rx(struct happy_meal *hp, struct net_device *dev)
static irqreturn_t happy_meal_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
struct happy_meal *hp = dev->priv;
struct net_device *dev = dev_id;
struct happy_meal *hp = netdev_priv(dev);
u32 happy_status = hme_read32(hp, hp->gregs + GREG_STAT);
HMD(("happy_meal_interrupt: status=%08x ", happy_status));

2
drivers/net/sunlance.c
View File

@ -822,7 +822,7 @@ out:
static irqreturn_t lance_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct net_device *dev = dev_id;
struct lance_private *lp = netdev_priv(dev);
int csr0;

2
drivers/net/sunqe.c
View File

@ -468,7 +468,7 @@ static void qe_tx_reclaim(struct sunqe *qep);
*/
static irqreturn_t qec_interrupt(int irq, void *dev_id)
{
struct sunqec *qecp = (struct sunqec *) dev_id;
struct sunqec *qecp = dev_id;
u32 qec_status;
int channel = 0;

7
drivers/net/tokenring/smctr.c
View File

@ -1990,15 +1990,8 @@ static irqreturn_t smctr_interrupt(int irq, void *dev_id)
__u8 isb_type, isb_subtype;
__u16 isb_index;
if(dev == NULL)
{
printk(KERN_CRIT "%s: irq %d for unknown device.\n", dev->name, irq);
return IRQ_NONE;
}
ioaddr = dev->base_addr;
tp = netdev_priv(dev);
if(tp->status == NOT_INITIALIZED)
return IRQ_NONE;

5
drivers/net/tokenring/tms380tr.c
View File

@ -751,11 +751,6 @@ irqreturn_t tms380tr_interrupt(int irq, void *dev_id)
unsigned short irq_type;
int handled = 0;
if(dev == NULL) {
printk(KERN_INFO "%s: irq %d for unknown device.\n", dev->name, irq);
return IRQ_NONE;
}
tp = netdev_priv(dev);
irq_type = SIFREADW(SIFSTS);

6
drivers/net/tulip/de4x5.c
View File

@ -1540,16 +1540,12 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
static irqreturn_t
de4x5_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct net_device *dev = dev_id;
struct de4x5_private *lp;
s32 imr, omr, sts, limit;
u_long iobase;
unsigned int handled = 0;
if (dev == NULL) {
printk ("de4x5_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
lp = netdev_priv(dev);
spin_lock(&lp->lock);
iobase = dev->base_addr;

4
drivers/net/wan/cycx_main.c
View File

@ -303,9 +303,9 @@ out: return ret;
*/
static irqreturn_t cycx_isr(int irq, void *dev_id)
{
struct cycx_device *card = (struct cycx_device *)dev_id;
struct cycx_device *card = dev_id;
if (!card || card->wandev.state == WAN_UNCONFIGURED)
if (card->wandev.state == WAN_UNCONFIGURED)
goto out;
if (card->in_isr) {

8
drivers/net/wan/sdla.c
View File

@ -875,13 +875,7 @@ static irqreturn_t sdla_isr(int irq, void *dev_id)
dev = dev_id;
if (dev == NULL)
{
printk(KERN_WARNING "sdla_isr(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
flp = dev->priv;
flp = netdev_priv(dev);
if (!flp->initialized)
{

2
drivers/net/wireless/orinoco.c
View File

@ -1954,7 +1954,7 @@ static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
irqreturn_t orinoco_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct net_device *dev = dev_id;
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int count = MAX_IRQLOOPS_PER_IRQ;

11
drivers/net/wireless/wavelan_cs.c
View File

@ -4119,21 +4119,12 @@ static irqreturn_t
wavelan_interrupt(int irq,
void * dev_id)
{
struct net_device * dev;
struct net_device * dev = dev_id;
net_local * lp;
kio_addr_t base;
int status0;
u_int tx_status;
if ((dev = dev_id) == NULL)
{
#ifdef DEBUG_INTERRUPT_ERROR
printk(KERN_WARNING "wavelan_interrupt(): irq %d for unknown device.\n",
irq);
#endif
return IRQ_NONE;
}
#ifdef DEBUG_INTERRUPT_TRACE
printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name);
#endif

15
drivers/net/wireless/wl3501_cs.c
View File

@ -1155,25 +1155,18 @@ static inline void wl3501_ack_interrupt(struct wl3501_card *this)
*/
static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct net_device *dev = dev_id;
struct wl3501_card *this;
int handled = 1;
if (!dev)
goto unknown;
this = dev->priv;
this = netdev_priv(dev);
spin_lock(&this->lock);
wl3501_ack_interrupt(this);
wl3501_block_interrupt(this);
wl3501_rx_interrupt(dev);
wl3501_unblock_interrupt(this);
spin_unlock(&this->lock);
out:
return IRQ_RETVAL(handled);
unknown:
handled = 0;
printk(KERN_ERR "%s: irq %d for unknown device.\n", __FUNCTION__, irq);
goto out;
return IRQ_HANDLED;
}
static int wl3501_reset_board(struct wl3501_card *this)

7
drivers/net/yellowfin.c
View File

@ -896,13 +896,6 @@ static irqreturn_t yellowfin_interrupt(int irq, void *dev_instance)
int boguscnt = max_interrupt_work;
unsigned int handled = 0;
#ifndef final_version /* Can never occur. */
if (dev == NULL) {
printk (KERN_ERR "yellowfin_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
#endif
yp = netdev_priv(dev);
ioaddr = yp->base;

5
drivers/net/znet.c
View File

@ -610,11 +610,6 @@ static irqreturn_t znet_interrupt(int irq, void *dev_id)
int boguscnt = 20;
int handled = 0;
if (dev == NULL) {
printk(KERN_WARNING "znet_interrupt(): IRQ %d for unknown device.\n", irq);
return IRQ_NONE;
}
spin_lock (&znet->lock);
ioaddr = dev->base_addr;