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| author | Michael Walle <michael@walle.cc> | 2021-05-12 16:12:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-13 16:08:26 +0200 |
| commit | 0d84f62220eda0eb167b01433f5ce8ebf51654a8 (patch) | |
| tree | 298e3bbe7614df11ed3fc783c7a6c2e60f2f4da5 /tools/perf/scripts/python/flamegraph.py | |
| parent | ec22c3eec5439fb012a41d49b015c13ca9b91b6c (diff) | |
| download | kernel-0d84f62220eda0eb167b01433f5ce8ebf51654a8.tar.gz | |
serial: fsl_lpuart: don't restore interrupt state in ISR
>From commit 75f4e830fa9c ("serial: do not restore interrupt state in
sysrq helper"):
Since commit 81e2073c175b ("genirq: Disable interrupts for force
threaded handlers") interrupt handlers that are not explicitly
requested as threaded are always called with interrupts disabled and
there is no need to save the interrupt state when taking the port
lock.
Apply this also to fsl_lpuart in prepartion for sysrq handling with
uart_unlock_and_check_sysrq().
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210512141255.18277-4-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions