Char: cyclades, fix some -W warnings

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

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 39 insertions, 49 deletions

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 46a15d24ce7d..0634dd1c773a 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);