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| author |   Johan Hovold <johan@kernel.org> | 2021-04-21 11:55:06 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 12:09:26 +0200 |
| commit | 3f6dbe6212bdd2094db84015ddef3d1f50fcde20 (patch) | |
| tree | 25dd901a5d05f2eebbfd0be4bb4e6403a5c66f7b /drivers/tty/serial/timbuart.c | |
| parent | serial: sifive: drop low-latency workaround (diff) | |
| download | linux-dev-3f6dbe6212bdd2094db84015ddef3d1f50fcde20.tar.xz linux-dev-3f6dbe6212bdd2094db84015ddef3d1f50fcde20.zip | |
serial: sunsu: drop low-latency workaround
The sunsu driver has been carrying a workaround for the infamous
low_latency behaviour of tty_flip_buffer_push() by dropping and
reacquiring the port lock in the interrupt handler since 2004.
Since commit a9c3f68f3cd8 ("tty: Fix low_latency BUG"),
tty_flip_buffer_push() always schedules a work item to push data to the
line discipline and there's no need to keep any low_latency hacks around.
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210421095509.3024-24-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/timbuart.c')
0 files changed, 0 insertions, 0 deletions