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| author | Peter Hurley <peter@hurleysoftware.com> | 2016-04-09 17:53:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 09:26:55 -0700 |
| commit | 2d68655d15bc99981394f7caa769a14b03cac131 (patch) | |
| tree | a61f1f9ffe92c21ff69fdd3f09c8f921f0670fcf /net/irda | |
| parent | 807c8d81f4ec441241cafa3034c58df721fee869 (diff) | |
| download | lwn-2d68655d15bc99981394f7caa769a14b03cac131.tar.gz lwn-2d68655d15bc99981394f7caa769a14b03cac131.zip | |
tty: Replace ASYNC_CHECK_CD and update atomically
Replace ASYNC_CHECK_CD bit in the tty_port::flags field with
TTY_PORT_CHECK_CD bit in the tty_port::iflags field. Introduce helpers
tty_port_set_check_carrier() and tty_port_check_carrier() to abstract
the atomic bit ops.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/irda')
| -rw-r--r-- | net/irda/ircomm/ircomm_tty.c | 4 | ||||
| -rw-r--r-- | net/irda/ircomm/ircomm_tty_attach.c | 2 | ||||
| -rw-r--r-- | net/irda/ircomm/ircomm_tty_ioctl.c | 5 |
3 files changed, 4 insertions, 7 deletions
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 681fe0bfe558..5b7ce599c709 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -999,7 +999,7 @@ void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self) if (status & IRCOMM_DCE_DELTA_ANY) { /*wake_up_interruptible(&self->delta_msr_wait);*/ } - if ((self->port.flags & ASYNC_CHECK_CD) && (status & IRCOMM_DELTA_CD)) { + if (tty_port_check_carrier(&self->port) && (status & IRCOMM_DELTA_CD)) { pr_debug("%s(), ircomm%d CD now %s...\n", __func__ , self->line, (status & IRCOMM_CD) ? "on" : "off"); @@ -1255,7 +1255,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m) seq_printf(m, "%cASYNC_CTS_FLOW", sep); sep = '|'; } - if (self->port.flags & ASYNC_CHECK_CD) { + if (tty_port_check_carrier(&self->port)) { seq_printf(m, "%cASYNC_CHECK_CD", sep); sep = '|'; } diff --git a/net/irda/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c index 61137f8b5293..0a411019c098 100644 --- a/net/irda/ircomm/ircomm_tty_attach.c +++ b/net/irda/ircomm/ircomm_tty_attach.c @@ -968,7 +968,7 @@ static int ircomm_tty_state_ready(struct ircomm_tty_cb *self, ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH); ircomm_tty_start_watchdog_timer(self, 3*HZ); - if (self->port.flags & ASYNC_CHECK_CD) { + if (tty_port_check_carrier(&self->port)) { /* Drop carrier */ self->settings.dce = IRCOMM_DELTA_CD; ircomm_tty_check_modem_status(self); diff --git a/net/irda/ircomm/ircomm_tty_ioctl.c b/net/irda/ircomm/ircomm_tty_ioctl.c index 1220973c7c43..e24724db36a2 100644 --- a/net/irda/ircomm/ircomm_tty_ioctl.c +++ b/net/irda/ircomm/ircomm_tty_ioctl.c @@ -96,10 +96,7 @@ static void ircomm_tty_change_speed(struct ircomm_tty_cb *self, } else { self->settings.flow_control &= ~IRCOMM_RTS_CTS_IN; } - if (cflag & CLOCAL) - self->port.flags &= ~ASYNC_CHECK_CD; - else - self->port.flags |= ASYNC_CHECK_CD; + tty_port_set_check_carrier(&self->port, ~cflag & CLOCAL); #if 0 /* * Set up parity check flag |