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tty: Replace ASYNC_CTS_FLOW bit and update atomically

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Replace ASYNC_CTS_FLOW bit in the tty_port::flags field with
TTY_PORT_CTS_FLOW bit in the tty_port::iflags field. Add
tty_port_set_cts_flow() helper to abstract the atomic bit ops.

Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Hurley 2016-04-09 17:53:21 -07:00 • committed by Greg Kroah-Hartman
commit 5604a98e2f
10 changed files with 25 additions and 38 deletions
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3
net/irda/ircomm/ircomm_tty_ioctl.c
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@ -86,15 +86,14 @@ static void ircomm_tty_change_speed(struct ircomm_tty_cb *self,
ircomm_param_request(self, IRCOMM_DATA_RATE, FALSE);
/* CTS flow control flag and modem status interrupts */
tty_port_set_cts_flow(&self->port, cflag & CRTSCTS);
if (cflag & CRTSCTS) {
self->port.flags |= ASYNC_CTS_FLOW;
self->settings.flow_control |= IRCOMM_RTS_CTS_IN;
/* This got me. Bummer. Jean II */
if (self->service_type == IRCOMM_3_WIRE_RAW)
net_warn_ratelimited("%s(), enabling RTS/CTS on link that doesn't support it (3-wire-raw)\n",
__func__);
} else {
self->port.flags &= ~ASYNC_CTS_FLOW;
self->settings.flow_control &= ~IRCOMM_RTS_CTS_IN;
}
if (cflag & CLOCAL)