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| author | Johan Hovold <johan@kernel.org> | 2021-04-21 11:54:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 12:09:24 +0200 |
| commit | 173d37fc598a2c2cfc73288203a1154557c810be (patch) | |
| tree | 407a9dcb2681caab7f6202ded80df7a3c5fe25c1 /drivers/cpuidle/cpuidle-qcom-spm.c | |
| parent | d26595d188e6f1f0dc2e3e9591ef31492b4f64da (diff) | |
| download | linux-173d37fc598a2c2cfc73288203a1154557c810be.tar.bz2 | |
serial: amba-pl010: drop low-latency workaround
Commit 2389b272168c ("[ARM] 4417/1: Serial: Fix AMBA drivers locking")
worked around the infamous low_latency behaviour of
tty_flip_buffer_push() by simply dropping and reacquiring the port lock
in the interrupt handler.
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: Russell King <linux@armlinux.org.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210421095509.3024-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpuidle/cpuidle-qcom-spm.c')
0 files changed, 0 insertions, 0 deletions