[PATCH v2 0/2] drm/msm: Remove spurious IRQF_ONESHOT flags from dsi & hdmi
Daniel Thompson
daniel.thompson at linaro.org
Tue Feb 1 17:47:31 UTC 2022
This series corrects incorrect calls to
request_irq(..., IRQF_ONESHOT, ...). These anomalies are harmless on
regular kernels but cause odd behaviour on threadirq kernels and
break entirely on PREEMPT_RT kernels
I'm pretty certain these problems would also provoke lockdep splats on
kernels with CONFIG_PROVE_RAW_LOCK_NESTING enabled (because that is
intended to find code that breaks entirely on PREEMPT_RT kernels ;-) ).
Finally, and just in case anybody asks, yes! I did use coccinelle to do
a quick scan for similar issues. I didn't find any other instances in
drivers/drm/ .
Changes in v2:
- Split into separate patches (Dmitry B)
Daniel Thompson (2):
drm/msm/dsi: Remove spurious IRQF_ONESHOT flag
drm/msm/hdmi: Remove spurious IRQF_ONESHOT flag
drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
drivers/gpu/drm/msm/hdmi/hdmi.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
base-commit: 26291c54e111ff6ba87a164d85d4a4e134b7315c
--
2.34.1
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