[PATCH 1/1 #2] Char: cyclades, fix some -W warnings

Jiri Slaby
2007-07-31T20:40:49Z

Andrew Morton wrote:
> On Sun, 29 Jul 2007 22:01:24 +0200 (CEST) Jiri Slaby <jirislaby@gmail.com> wrote:
> > cyclades, fix some -W warnings
> >
>
> drivers/char/cyclades.c: In function 'cyz_handle_cmd':
> drivers/char/cyclades.c:1704: warning: passing argument 2 of 'cyz_handle_rx' from incompatible pointer type
> drivers/char/cyclades.c:1704: error: too many arguments to function 'cyz_handle_rx'
> drivers/char/cyclades.c:1714: warning: passing argument 2 of 'cyz_handle_tx' from incompatible pointer type
> drivers/char/cyclades.c:1714: error: too many arguments to function 'cyz_handle_tx'

Hum, all___config :(. I'm very sorry. #2 follows.

--

cyclades, fix some -W warnings

most of them are signedness, the rest unused function parameters.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit 3919c1d3df1cd42f8a7c37d676c97798da89c15a
tree 746f7399699e280fed6a39e461c1972d5bc9908a
parent 93fc0dd73bb407b773506ec8d756317de9098d53
author Jiri Slaby <jirislaby@gmail.com> Tue, 31 Jul 2007 22:30:16 +0200
committer Jiri Slaby <jirislaby@gmail.com> Tue, 31 Jul 2007 22:30:16 +0200

drivers/char/cyclades.c | 88 ++++++++++++++++++++--------------------------
include/linux/cyclades.h | 12 +++---
2 files changed, 45 insertions(+), 55 deletions(-)

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index a83524a..49cc3d3 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -662,7 +662,7 @@
static void cy_throttle(struct tty_struct *tty);
static void cy_send_xchar(struct tty_struct *tty, char ch);

-#define IS_CYC_Z(card) ((card).num_chips == -1)
+#define IS_CYC_Z(card) ((card).num_chips == (unsigned int)-1)

#define Z_FPGA_CHECK(card) \
((readl(&((struct RUNTIME_9060 __iomem *) \
@@ -985,25 +985,23 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
{
struct cyclades_port *info;
struct tty_struct *tty;
- int char_count;
- int j, len, index = cinfo->bus_index;
- int save_xir, channel, save_car;
- char data;
+ int len, index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, data, char_count;

#ifdef CY_DEBUG_INTERRUPTS
printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip);
#endif
/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyRIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyRIR << index));
+ channel = save_xir & CyIRChannel;
info = &cinfo->ports[channel + chip * 4];
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);

/* if there is nowhere to put the data, discard it */
if (info->tty == NULL) {
- j = (readb(base_addr + (CyRIVR << index)) & CyIVRMask);
- if (j == CyIVRRxEx) { /* exception */
+ if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
+ CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
} else { /* normal character reception */
char_count = readb(base_addr + (CyRDCR << index));
@@ -1014,8 +1012,8 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
}
/* there is an open port for this data */
tty = info->tty;
- j = readb(base_addr + (CyRIVR << index)) & CyIVRMask;
- if (j == CyIVRRxEx) { /* exception */
+ if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
+ CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));

/* For statistics only */
@@ -1116,13 +1114,12 @@ end:
cy_writeb(base_addr + (CyCAR << index), save_car);
}

-static void cyy_chip_tx(struct cyclades_card *cinfo, int chip,
+static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
void __iomem *base_addr)
{
struct cyclades_port *info;
- int char_count;
- int outch;
- int save_xir, channel, save_car, index = cinfo->bus_index;
+ int char_count, index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, outch;

/* Since we only get here when the transmit buffer
is empty, we know we can always stuff a dozen
@@ -1132,8 +1129,8 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip,
#endif

/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyTIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyTIR << index));
+ channel = save_xir & CyIRChannel;
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);

@@ -1242,12 +1239,12 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
void __iomem *base_addr)
{
struct cyclades_port *info;
- int mdm_change, mdm_status;
- int save_xir, channel, save_car, index = cinfo->bus_index;
+ int index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, mdm_change, mdm_status;

/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyMIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyMIR << index));
+ channel = save_xir & CyIRChannel;
info = &cinfo->ports[channel + chip * 4];
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);
@@ -1320,10 +1317,8 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id)
int status;
struct cyclades_card *cinfo = dev_id;
void __iomem *base_addr, *card_base_addr;
- int chip;
+ unsigned int chip, too_many, had_work;
int index;
- int too_many;
- int had_work;

if (unlikely(cinfo == NULL)) {
#ifdef CY_DEBUG_INTERRUPTS
@@ -1422,7 +1417,7 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
struct ZFW_CTRL __iomem *zfw_ctrl;
struct BOARD_CTRL __iomem *board_ctrl;
__u32 __iomem *pci_doorbell;
- int index;
+ unsigned int index;

firm_id = cinfo->base_addr + ID_ADDRESS;
if (!ISZLOADED(*cinfo)) {
@@ -1447,13 +1442,12 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
return 0;
} /* cyz_issue_cmd */

-static void
-cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
+static void cyz_handle_rx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
struct tty_struct *tty = info->tty;
- int char_count;
+ unsigned int char_count;
int len;
#ifdef BLOCKMOVE
unsigned char *buf;
@@ -1526,7 +1520,7 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
char_count = rx_put - rx_get;
else
char_count = rx_put - rx_get + rx_bufsize;
- if (char_count >= (int)readl(&buf_ctrl->rx_threshold) &&
+ if (char_count >= readl(&buf_ctrl->rx_threshold) &&
!timer_pending(&cyz_rx_full_timer[
info->line]))
mod_timer(&cyz_rx_full_timer[info->line],
@@ -1540,14 +1534,13 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
}
}

-static void
-cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
+static void cyz_handle_tx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
struct tty_struct *tty = info->tty;
- char data;
- int char_count;
+ u8 data;
+ unsigned int char_count;
#ifdef BLOCKMOVE
int small_count;
#endif
@@ -1708,7 +1701,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
printk(KERN_DEBUG "cyz_interrupt: rcvd intr, card %d, "
"port %ld\n", info->card, channel);
#endif
- cyz_handle_rx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_rx(info, buf_ctrl);
break;
case C_CM_TXBEMPTY:
case C_CM_TXLOWWM:
@@ -1718,7 +1711,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
printk(KERN_DEBUG "cyz_interrupt: xmit intr, card %d, "
"port %ld\n", info->card, channel);
#endif
- cyz_handle_tx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_tx(info, buf_ctrl);
break;
#endif /* CONFIG_CYZ_INTR */
case C_CM_FATAL:
@@ -1787,10 +1780,9 @@ static void cyz_poll(unsigned long arg)
struct FIRM_ID __iomem *firm_id;
struct ZFW_CTRL __iomem *zfw_ctrl;
struct BOARD_CTRL __iomem *board_ctrl;
- struct CH_CTRL __iomem *ch_ctrl;
struct BUF_CTRL __iomem *buf_ctrl;
unsigned long expires = jiffies + HZ;
- int card, port;
+ unsigned int port, card;

for (card = 0; card < NR_CARDS; card++) {
cinfo = &cy_card[card];
@@ -1817,12 +1809,11 @@ static void cyz_poll(unsigned long arg)
for (port = 0; port < cinfo->nports; port++) {
info = &cinfo->ports[port];
tty = info->tty;
- ch_ctrl = &(zfw_ctrl->ch_ctrl[port]);
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);

if (!info->throttle)
- cyz_handle_rx(info, ch_ctrl, buf_ctrl);
- cyz_handle_tx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_rx(info, buf_ctrl);
+ cyz_handle_tx(info, buf_ctrl);
}
/* poll every 'cyz_polling_cycle' period */
expires = jiffies + cyz_polling_cycle;
@@ -2385,11 +2376,11 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
static int cy_open(struct tty_struct *tty, struct file *filp)
{
struct cyclades_port *info;
- unsigned int i;
- int retval, line;
+ unsigned int i, line;
+ int retval;

line = tty->index;
- if ((line < 0) || (NR_PORTS <= line)) {
+ if ((tty->index < 0) || (NR_PORTS <= line)) {
return -ENODEV;
}
for (i = 0; i < NR_CARDS; i++)
@@ -4359,9 +4350,9 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
{
struct cyclades_port *info;
u32 uninitialized_var(mailbox);
- unsigned int nports;
+ unsigned int nports, port;
unsigned short chip_number;
- int uninitialized_var(index), port;
+ int uninitialized_var(index);

spin_lock_init(&cinfo->card_lock);

@@ -5127,7 +5118,7 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
}
}
#endif /* CONFIG_CYZ_INTR */
- cy_card[card_no].num_chips = -1;
+ cy_card[card_no].num_chips = (unsigned int)-1;
}

/* set cy_card */
@@ -5387,7 +5378,7 @@ err:
static void __exit cy_cleanup_module(void)
{
struct cyclades_card *card;
- int i, e1;
+ unsigned int i, e1;

#ifndef CONFIG_CYZ_INTR
del_timer_sync(&cyz_timerlist);
@@ -5415,8 +5406,7 @@ static void __exit cy_cleanup_module(void)
#endif /* CONFIG_CYZ_INTR */
)
free_irq(card->irq, card);
- for (e1 = card->first_line;
- e1 < card->first_line +
+ for (e1 = card->first_line; e1 < card->first_line +
card->nports; e1++)
tty_unregister_device(cy_serial_driver, e1);
kfree(card->ports);
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index 06b2725..8f3dcd3 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -512,11 +512,11 @@ struct cyclades_card {
void __iomem *base_addr;
void __iomem *ctl_addr;
int irq;
- int num_chips; /* 0 if card absent, -1 if Z/PCI, else Y */
- int first_line; /* minor number of first channel on card */
- int nports; /* Number of ports in the card */
- int bus_index; /* address shift - 0 for ISA, 1 for PCI */
- int intr_enabled; /* FW Interrupt flag - 0 disabled, 1 enabled */
+ unsigned int num_chips; /* 0 if card absent, -1 if Z/PCI, else Y */
+ unsigned int first_line; /* minor number of first channel on card */
+ unsigned int nports; /* Number of ports in the card */
+ int bus_index; /* address shift - 0 for ISA, 1 for PCI */
+ int intr_enabled; /* FW Interrupt flag - 0 disabled, 1 enabled */
spinlock_t card_lock;
struct cyclades_port *ports;
};
@@ -566,7 +566,7 @@ struct cyclades_port {
int rtsdtr_inv;
int chip_rev;
int custom_divisor;
- int x_char; /* to be pushed out ASAP */
+ u8 x_char; /* to be pushed out ASAP */