diff options
52 files changed, 752 insertions, 1368 deletions
diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt index 2191dcb9f1da..9c5d19ac935c 100644 --- a/Documentation/devicetree/bindings/serial/atmel-usart.txt +++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt @@ -6,6 +6,9 @@ Required properties: additional mode or an USART new feature. - reg: Should contain registers location and length - interrupts: Should contain interrupt +- clock-names: tuple listing input clock names. + Required elements: "usart" +- clocks: phandles to input clocks. Optional properties: - atmel,use-dma-rx: use of PDC or DMA for receiving data @@ -26,6 +29,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xfff8c000 0x4000>; interrupts = <7>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; }; @@ -35,6 +40,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xf001c000 0x100>; interrupts = <12 4 5>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; dmas = <&dma0 2 0x3>, diff --git a/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt new file mode 100644 index 000000000000..12f3cf834deb --- /dev/null +++ b/Documentation/devicetree/bindings/serial/cirrus,clps711x-uart.txt @@ -0,0 +1,28 @@ +* Cirrus Logic CLPS711X Universal Asynchronous Receiver/Transmitter (UART) + +Required properties: +- compatible: Should be "cirrus,clps711x-uart". +- reg: Address and length of the register set for the device. +- interrupts: Should contain UART TX and RX interrupt. +- clocks: Should contain UART core clock number. +- syscon: Phandle to SYSCON node, which contain UART control bits. + +Optional properties: +- uart-use-ms: Indicate the UART has modem signal (DCD, DSR, CTS). + +Note: Each UART port should have an alias correctly numbered +in "aliases" node. + +Example: + aliases { + serial0 = &uart1; + }; + + uart1: uart@80000480 { + compatible = "cirrus,clps711x-uart"; + reg = <0x80000480 0x80>; + interrupts = <12 13>; + clocks = <&clks 11>; + syscon = <&syscon1>; + uart-use-ms; + }; diff --git a/arch/arm/mach-clps711x/devices.c b/arch/arm/mach-clps711x/devices.c index fb77d1448fec..2001488a5ef2 100644 --- a/arch/arm/mach-clps711x/devices.c +++ b/arch/arm/mach-clps711x/devices.c @@ -61,8 +61,29 @@ static void __init clps711x_add_syscon(void) &clps711x_syscon_res[i], 1); } +static const struct resource clps711x_uart1_res[] __initconst = { + DEFINE_RES_MEM(CLPS711X_PHYS_BASE + UARTDR1, SZ_128), + DEFINE_RES_IRQ(IRQ_UTXINT1), + DEFINE_RES_IRQ(IRQ_URXINT1), +}; + +static const struct resource clps711x_uart2_res[] __initconst = { + DEFINE_RES_MEM(CLPS711X_PHYS_BASE + UARTDR2, SZ_128), + DEFINE_RES_IRQ(IRQ_UTXINT2), + DEFINE_RES_IRQ(IRQ_URXINT2), +}; + +static void __init clps711x_add_uart(void) +{ + platform_device_register_simple("clps711x-uart", 0, clps711x_uart1_res, + ARRAY_SIZE(clps711x_uart1_res)); + platform_device_register_simple("clps711x-uart", 1, clps711x_uart2_res, + ARRAY_SIZE(clps711x_uart2_res)); +}; + void __init clps711x_devices_init(void) { clps711x_add_gpio(); clps711x_add_syscon(); + clps711x_add_uart(); } diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index d39cca659a3f..8320abd1ef14 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2511,8 +2511,8 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp) /* If port is closing, signal caller to try again */ if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){ - if (port->flags & ASYNC_CLOSING) - interruptible_sleep_on(&port->close_wait); + wait_event_interruptible_tty(tty, port->close_wait, + !(port->flags & ASYNC_CLOSING)); retval = ((port->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); goto cleanup; diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c index 8755f5f3ad37..0cb7ef59071b 100644 --- a/drivers/input/serio/serport.c +++ b/drivers/input/serio/serport.c @@ -124,7 +124,7 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c { struct serport *serport = (struct serport*) tty->disc_data; unsigned long flags; - unsigned int ch_flags; + unsigned int ch_flags = 0; int i; spin_lock_irqsave(&serport->lock, flags); @@ -133,18 +133,20 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c goto out; for (i = 0; i < count; i++) { - switch (fp[i]) { - case TTY_FRAME: - ch_flags = SERIO_FRAME; - break; - - case TTY_PARITY: - ch_flags = SERIO_PARITY; - break; - - default: - ch_flags = 0; - break; + if (fp) { + switch (fp[i]) { + case TTY_FRAME: + ch_flags = SERIO_FRAME; + break; + + case TTY_PARITY: + ch_flags = SERIO_PARITY; + break; + + default: + ch_flags = 0; + break; + } } serio_interrupt(serport->serio, cp[i], ch_flags); diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c index 1b8bdb7e9bf4..ff53314100f6 100644 --- a/drivers/parport/parport_serial.c +++ b/drivers/parport/parport_serial.c @@ -596,13 +596,11 @@ static int parport_serial_pci_probe(struct pci_dev *dev, err = pci_enable_device (dev); if (err) { - pci_set_drvdata (dev, NULL); kfree (priv); return err; } if (parport_register (dev, id)) { - pci_set_drvdata (dev, NULL); kfree (priv); return -ENODEV; } @@ -611,7 +609,6 @@ static int parport_serial_pci_probe(struct pci_dev *dev, int i; for (i = 0; i < priv->num_par; i++) parport_pc_unregister_port (priv->port[i]); - pci_set_drvdata (dev, NULL); kfree (priv); return -ENODEV; } @@ -624,8 +621,6 @@ static void parport_serial_pci_remove(struct pci_dev *dev) struct parport_serial_private *priv = pci_get_drvdata (dev); int i; - pci_set_drvdata(dev, NULL); - // Serial ports if (priv->serial) pciserial_remove_ports(priv->serial); diff --git a/drivers/staging/fwserial/Kconfig b/drivers/staging/fwserial/Kconfig index a0812d99136f..9c7c9267d52c 100644 --- a/drivers/staging/fwserial/Kconfig +++ b/drivers/staging/fwserial/Kconfig @@ -9,3 +9,23 @@ config FIREWIRE_SERIAL To compile this driver as a module, say M here: the module will be called firewire-serial. + +if FIREWIRE_SERIAL + +config FWTTY_MAX_TOTAL_PORTS + int "Maximum number of serial ports supported" + default "64" + help + Set this to the maximum number of serial ports you want the + firewire-serial driver to support. + +config FWTTY_MAX_CARD_PORTS + int "Maximum number of serial ports supported per adapter" + range 0 FWTTY_MAX_TOTAL_PORTS + default "32" + help + Set this to the maximum number of serial ports each firewire + adapter supports. The actual number of serial ports registered + is set with the module parameter "ttys". + +endif diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index 62df009e5ac7..8af136e9c9dc 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -136,14 +136,14 @@ static struct fwtty_peer *__fwserial_peer_by_node_id(struct fw_card *card, #ifdef FWTTY_PROFILING -static void profile_fifo_avail(struct fwtty_port *port, unsigned *stat) +static void fwtty_profile_fifo(struct fwtty_port *port, unsigned *stat) { spin_lock_bh(&port->lock); - profile_size_distrib(stat, dma_fifo_avail(&port->tx_fifo)); + fwtty_profile_data(stat, dma_fifo_avail(&port->tx_fifo)); spin_unlock_bh(&port->lock); } -static void dump_profile(struct seq_file *m, struct stats *stats) +static void fwtty_dump_profile(struct seq_file *m, struct stats *stats) { /* for each stat, print sum of 0 to 2^k, then individually */ int k = 4; @@ -183,8 +183,8 @@ static void dump_profile(struct seq_file *m, struct stats *stats) } #else -#define profile_fifo_avail(port, stat) -#define dump_profile(m, stats) +#define fwtty_profile_fifo(port, stat) +#define fwtty_dump_profile(m, stats) #endif /* @@ -456,16 +456,27 @@ static int fwtty_write_port_status(struct fwtty_port *port) return err; } -static void __fwtty_throttle(struct fwtty_port *port, struct tty_struct *tty) +static void fwtty_throttle_port(struct fwtty_port *port) { + struct tty_struct *tty; unsigned old; + tty = tty_port_tty_get(&port->port); + if (!tty) + return; + + spin_lock_bh(&port->lock); + old = port->mctrl; port->mctrl |= OOB_RX_THROTTLE; if (C_CRTSCTS(tty)) port->mctrl &= ~TIOCM_RTS; if (~old & OOB_RX_THROTTLE) __fwtty_write_port_status(port); + + spin_unlock_bh(&port->lock); + + tty_kref_put(tty); } /** @@ -532,80 +543,14 @@ static void fwtty_emit_breaks(struct work_struct *work) port->icount.brk += brk; } -static void fwtty_pushrx(struct work_struct *work) -{ - struct fwtty_port *port = to_port(work, push); - struct tty_struct *tty; - struct buffered_rx *buf, *next; - int n, c = 0; - - spin_lock_bh(&port->lock); - list_for_each_entry_safe(buf, next, &port->buf_list, list) { - n = tty_insert_flip_string_fixed_flag(&port->port, buf->data, - TTY_NORMAL, buf->n); - c += n; - port->buffered -= n; - if (n < buf->n) { - if (n > 0) { - memmove(buf->data, buf->data + n, buf->n - n); - buf->n -= n; - } - tty = tty_port_tty_get(&port->port); - if (tty) { - __fwtty_throttle(port, tty); - tty_kref_put(tty); - } - break; - } else { - list_del(&buf->list); - kfree(buf); - } - } - if (c > 0) - tty_flip_buffer_push(&port->port); - - if (list_empty(&port->buf_list)) - clear_bit(BUFFERING_RX, &port->flags); - spin_unlock_bh(&port->lock); -} - -static int fwtty_buffer_rx(struct fwtty_port *port, unsigned char *d, size_t n) -{ - struct buffered_rx *buf; - size_t size = (n + sizeof(struct buffered_rx) + 0xFF) & ~0xFF; - - if (port->buffered + n > HIGH_WATERMARK) { - fwtty_err_ratelimited(port, "overflowed rx buffer: buffered: %d new: %zu wtrmk: %d\n", - port->buffered, n, HIGH_WATERMARK); - return 0; - } - buf = kmalloc(size, GFP_ATOMIC); - if (!buf) - return 0; - INIT_LIST_HEAD(&buf->list); - buf->n = n; - memcpy(buf->data, d, n); - - spin_lock_bh(&port->lock); - list_add_tail(&buf->list, &port->buf_list); - port->buffered += n; - if (port->buffered > port->stats.watermark) - port->stats.watermark = port->buffered; - set_bit(BUFFERING_RX, &port->flags); - spin_unlock_bh(&port->lock); - - return n; -} - static int fwtty_rx(struct fwtty_port *port, unsigned char *data, size_t len) { - struct tty_struct *tty; int c, n = len; unsigned lsr; int err = 0; fwtty_dbg(port, "%d\n", n); - profile_size_distrib(port->stats.reads, n); + fwtty_profile_data(port->stats.reads, n); if (port->write_only) { n = 0; @@ -636,31 +581,24 @@ static int fwtty_rx(struct fwtty_port *port, unsigned char *data, size_t len) goto out; } - if (!test_bit(BUFFERING_RX, &port->flags)) { - c = tty_insert_flip_string_fixed_flag(&port->port, data, - TTY_NORMAL, n); - if (c > 0) - tty_flip_buffer_push(&port->port); - n -= c; - - if (n) { - /* start buffering and throttling */ - n -= fwtty_buffer_rx(port, &data[c], n); - - tty = tty_port_tty_get(&port->port); - if (tty) { - spin_lock_bh(&port->lock); - __fwtty_throttle(port, tty); - spin_unlock_bh(&port->lock); - tty_kref_put(tty); - } - } - } else - n -= fwtty_buffer_rx(port, data, n); + c = tty_insert_flip_string_fixed_flag(&port->port, data, TTY_NORMAL, n); + if (c > 0) + tty_flip_buffer_push(&port->port); + n -= c; if (n) { port->overrun = true; err = -EIO; + fwtty_err_ratelimited(port, "flip buffer overrun\n"); + + } else { + /* throttle the sender if remaining flip buffer space has + * reached high watermark to avoid losing data which may be + * in-flight. Since the AR request context is 32k, that much + * data may have _already_ been acked. + */ + if (tty_buffer_space_avail(&port->port) < HIGH_WATERMARK) + fwtty_throttle_port(port); } out: @@ -821,7 +759,7 @@ static int fwtty_tx(struct fwtty_port *port, bool drain) if (n == -EAGAIN) ++port->stats.tx_stall; else if (n == -ENODATA) - profile_size_distrib(port->stats.txns, 0); + fwtty_profile_data(port->stats.txns, 0); else { ++port->stats.fifo_errs; fwtty_err_ratelimited(port, "fifo err: %d\n", @@ -830,7 +768,7 @@ static int fwtty_tx(struct fwtty_port *port, bool drain) break; } - profile_size_distrib(port->stats.txns, txn->dma_pended.len); + fwtty_profile_data(port->stats.txns, txn->dma_pended.len); fwtty_send_txn_async(peer, txn, TCODE_WRITE_BLOCK_REQUEST, peer->fifo_addr, txn->dma_pended.data, @@ -1101,20 +1039,13 @@ static int fwtty_port_activate(struct tty_port *tty_port, static void fwtty_port_shutdown(struct tty_port *tty_port) { struct fwtty_port *port = to_port(tty_port, port); - struct buffered_rx *buf, *next; /* TODO: cancel outstanding transactions */ cancel_delayed_work_sync(&port->emit_breaks); cancel_delayed_work_sync(&port->drain); - cancel_work_sync(&port->push); spin_lock_bh(&port->lock); - list_for_each_entry_safe(buf, next, &port->buf_list, list) { - list_del(&buf->list); - kfree(buf); - } - port->buffered = 0; port->flags = 0; port->break_ctl = 0; port->overrun = 0; @@ -1184,7 +1115,7 @@ static int fwtty_write(struct tty_struct *tty, const unsigned char *buf, int c) int n, len; fwtty_dbg(port, "%d\n", c); - profile_size_distrib(port->stats.writes, c); + fwtty_profile_data(port->stats.writes, c); spin_lock_bh(&port->lock); n = dma_fifo_in(&port->tx_fifo, buf, c); @@ -1262,9 +1193,7 @@ static void fwtty_unthrottle(struct tty_struct *tty) fwtty_dbg(port, "CRTSCTS: %d\n", (C_CRTSCTS(tty) != 0)); - profile_fifo_avail(port, port->stats.unthrottle); - - schedule_work(&port->push); + fwtty_profile_fifo(port, port->stats.unthrottle); spin_lock_bh(&port->lock); port->mctrl &= ~OOB_RX_THROTTLE; @@ -1523,15 +1452,14 @@ static void fwtty_debugfs_show_port(struct seq_file *m, struct fwtty_port *port) seq_printf(m, " dr:%d st:%d err:%d lost:%d", stats.dropped, stats.tx_stall, stats.fifo_errs, stats.lost); - seq_printf(m, " pkts:%d thr:%d wtrmk:%d", stats.sent, stats.throttled, - stats.watermark); + seq_printf(m, " pkts:%d thr:%d", stats.sent, stats.throttled); if (port->port.console) { seq_puts(m, "\n "); (*port->fwcon_ops->proc_show)(m, port->con_data); } - dump_profile(m, &port->stats); + fwtty_dump_profile(m, &port->stats); } static void fwtty_debugfs_show_peer(struct seq_file *m, struct fwtty_peer *peer) @@ -2297,13 +2225,12 @@ static int fwserial_create(struct fw_unit *unit) port->index = FWTTY_INVALID_INDEX; port->port.ops = &fwtty_port_ops; port->serial = serial; + tty_buffer_set_limit(&port->port, 128 * 1024); spin_lock_init(&port->lock); INIT_DELAYED_WORK(&port->drain, fwtty_drain_tx); INIT_DELAYED_WORK(&port->emit_breaks, fwtty_emit_breaks); INIT_WORK(&port->hangup, fwtty_do_hangup); - INIT_WORK(&port->push, fwtty_pushrx); - INIT_LIST_HEAD(&port->buf_list); init_waitqueue_head(&port->wait_tx); port->max_payload = link_speed_to_max_payload(SCODE_100); dma_fifo_init(&port->tx_fifo); diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h index 24635014a2ac..54f7f9b9b212 100644 --- a/drivers/staging/fwserial/fwserial.h +++ b/drivers/staging/fwserial/fwserial.h @@ -22,14 +22,14 @@ #ifdef FWTTY_PROFILING #define DISTRIBUTION_MAX_SIZE 8192 #define DISTRIBUTION_MAX_INDEX (ilog2(DISTRIBUTION_MAX_SIZE) + 1) -static inline void profile_size_distrib(unsigned stat[], unsigned val) +static inline void fwtty_profile_data(unsigned stat[], unsigned val) { int n = (val) ? min(ilog2(val) + 1, DISTRIBUTION_MAX_INDEX) : 0; ++stat[n]; } #else #define DISTRIBUTION_MAX_INDEX 0 -#define profile_size_distrib(st, n) +#define fwtty_profile_data(st, n) #endif /* Parameters for both VIRT_CABLE_PLUG & VIRT_CABLE_PLUG_RSP mgmt codes */ @@ -166,7 +166,6 @@ struct stats { unsigned sent; unsigned lost; unsigned throttled; - unsigned watermark; unsigned reads[DISTRIBUTION_MAX_INDEX + 1]; unsigned writes[DISTRIBUTION_MAX_INDEX + 1]; unsigned txns[DISTRIBUTION_MAX_INDEX + 1]; @@ -183,12 +182,6 @@ struct fwconsole_ops { #define FWCON_NOTIFY_ATTACH 1 #define FWCON_NOTIFY_DETACH 2 -struct buffered_rx { - struct list_head list; - size_t n; - unsigned char data[0]; -}; - /** * fwtty_port: structure used to track/represent underlying tty_port * @port: underlying tty_port @@ -223,11 +216,6 @@ struct buffered_rx { * The work can race with the writer but concurrent sending is * prevented with the IN_TX flag. Scheduled under lock to * limit scheduling when fifo has just been drained. - * @push: work responsible for pushing buffered rx to the ldisc. - * rx can become buffered if the tty buffer is filled before the - * ldisc throttles the sender. - * @buf_list: list of buffered rx yet to be sent to ldisc - * @buffered: byte count of buffered rx * @tx_fifo: fifo used to store & block-up writes for dma to remote * @max_payload: max bytes transmissable per dma (based on peer's max_payload) * @status_mask: UART_LSR_* bitmask significant to rx (based on termios) @@ -267,9 +255,6 @@ struct fwtty_port { spinlock_t lock; unsigned mctrl; struct delayed_work drain; - struct work_struct push; - struct list_head buf_list; - int buffered; struct dma_fifo tx_fifo; int max_payload; unsigned status_mask; @@ -291,7 +276,6 @@ struct fwtty_port { /* bit #s for flags field */ #define IN_TX 0 #define STOP_TX 1 -#define BUFFERING_RX 2 /* bitmasks for special mctrl/mstatus bits */ #define OOB_RX_THROTTLE 0x00010000 @@ -307,8 +291,8 @@ struct fwtty_port { #define FREQ_BREAKS (HZ / 50) /* Ports are allocated in blocks of num_ports for each fw_card */ -#define MAX_CARD_PORTS 32 /* max # of ports per card */ -#define MAX_TOTAL_PORTS 64 /* max # of ports total */ +#define MAX_CARD_PORTS CONFIG_FWTTY_MAX_CARD_PORTS +#define MAX_TOTAL_PORTS CONFIG_FWTTY_MAX_TOTAL_PORTS /* tuning parameters */ #define FWTTY_PORT_TXFIFO_LEN 4096 diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 71630a2af42c..979e7c3ea2cb 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1248,6 +1248,8 @@ static int rs_ioctl(struct tty_struct *tty, struct async_icount cprev, cnow; /* kernel counter temps */ void __user *argp = (void __user *)arg; unsigned long flags; + DEFINE_WAIT(wait); + int ret; if (serial_paranoia_check(info, tty->name, "rs_ioctl")) return -ENODEV; @@ -1288,25 +1290,33 @@ static int rs_ioctl(struct tty_struct *tty, cprev = info->icount; local_irq_restore(flags); while (1) { - interruptible_sleep_on(&info->tport.delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; + prepare_to_wait(&info->tport.delta_msr_wait, + &wait, TASK_INTERRUPTIBLE); local_irq_save(flags); cnow = info->icount; /* atomic copy */ local_irq_restore(flags); if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ + cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) { + ret = -EIO; /* no change => error */ + break; + } if ( ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { - return 0; + ret = 0; + break; + } + schedule(); + /* see if a signal did it */ + if (signal_pending(current)) { + ret = -ERESTARTSYS; + break; } cprev = cnow; } - /* NOTREACHED */ + finish_wait(&info->tport.delta_msr_wait, &wait); + return ret; case TIOCSERGWILD: case TIOCSERSWILD: diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index 33f83fee9fae..a57bb5ab761c 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -2709,6 +2709,8 @@ cy_ioctl(struct tty_struct *tty, break; #ifndef CONFIG_CYZ_INTR case CYZSETPOLLCYCLE: + if (arg > LONG_MAX / HZ) + return -ENODEV; cyz_polling_cycle = (arg * HZ) / 1000; break; case CYZGETPOLLCYCLE: diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c index f17d2e4ee2ca..75dc9d25f326 100644 --- a/drivers/tty/goldfish.c +++ b/drivers/tty/goldfish.c @@ -14,7 +14,6 @@ */ #include <linux/console.h> -#include <linux/init.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/tty.h> diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 9eba119bcdd3..50b46881b6ca 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -788,7 +788,7 @@ static int hvc_tiocmset(struct tty_struct *tty, } #ifdef CONFIG_CONSOLE_POLL -int hvc_poll_init(struct tty_driver *driver, int line, char *options) +static int hvc_poll_init(struct tty_driver *driver, int line, char *options) { return 0; } diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c index 347050ea414a..7ae6c293e518 100644 --- a/drivers/tty/hvc/hvsi_lib.c +++ b/ |