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authorAnton Ivanov <anton.ivanov@cambridgegreys.com>2018-11-13 15:08:02 +0000
committerRichard Weinberger <richard@nod.at>2018-12-27 22:48:35 +0100
commit940b241d9050fc354f68c182e99fc3da1ff36bc0 (patch)
treed57775381213bb7cf168bc506242e054954e6e5c /arch/um/drivers/chan_kern.c
parentb9794231737ab8c8a3a225b50aa168c4c7f9b9ec (diff)
downloadlinux-940b241d9050fc354f68c182e99fc3da1ff36bc0.tar.bz2
um: Remove obsolete reenable_XX calls
reenable_fd has been a NOP since the introduction of the EPOLL based interrupt controller. reenable_channel() is no longer needed as the flow control is now handled via the write IRQs on the channel. Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/drivers/chan_kern.c')
-rw-r--r--arch/um/drivers/chan_kern.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 05588f9466c7..a4e64edb8f38 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -211,12 +211,6 @@ void deactivate_chan(struct chan *chan, int irq)
deactivate_fd(chan->fd, irq);
}
-void reactivate_chan(struct chan *chan, int irq)
-{
- if (chan && chan->enabled)
- reactivate_fd(chan->fd, irq);
-}
-
int write_chan(struct chan *chan, const char *buf, int len,
int write_irq)
{
@@ -228,8 +222,6 @@ int write_chan(struct chan *chan, const char *buf, int len,
n = chan->ops->write(chan->fd, buf, len, chan->data);
if (chan->primary) {
ret = n;
- if ((ret == -EAGAIN) || ((ret >= 0) && (ret < len)))
- reactivate_fd(chan->fd, write_irq);
}
return ret;
}
@@ -527,8 +519,6 @@ void chan_interrupt(struct line *line, int irq)
tty_insert_flip_char(port, c, TTY_NORMAL);
} while (err > 0);
- if (err == 0)
- reactivate_fd(chan->fd, irq);
if (err == -EIO) {
if (chan->primary) {
tty_port_tty_hangup(&line->port, false);