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authorPeter Hurley <peter@hurleysoftware.com>2016-04-09 17:53:23 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-30 09:26:55 -0700
commit2d68655d15bc99981394f7caa769a14b03cac131 (patch)
treea61f1f9ffe92c21ff69fdd3f09c8f921f0670fcf /net/irda
parent807c8d81f4ec441241cafa3034c58df721fee869 (diff)
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.c4
-rw-r--r--net/irda/ircomm/ircomm_tty_attach.c2
-rw-r--r--net/irda/ircomm/ircomm_tty_ioctl.c5
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