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| author | Iwona Winiarska <[email protected]> | 2021-12-04 18:10:26 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <[email protected]> | 2021-12-10 16:14:40 +0100 |
| commit | 61a7904b6ace99b1bde0d0e867fa3097f5c8cee2 (patch) | |
| tree | 2ae31b78bee1666c8c7796428015e32ac5c7220a /tools/perf/scripts/python/sched-migration.py | |
| parent | 9dbd1ab20509e85cd3fac9479a00c59e83c08196 (diff) | |
gpio: aspeed: Convert aspeed_gpio.lock to raw_spinlock
The gpio-aspeed driver implements an irq_chip which need to be invoked
from hardirq context. Since spin_lock() can sleep with PREEMPT_RT, it is
no longer legal to invoke it while interrupts are disabled.
This also causes lockdep to complain about:
[ 0.649797] [ BUG: Invalid wait context ]
because aspeed_gpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.
Signed-off-by: Iwona Winiarska <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions