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| author | Mark Brown <broonie@kernel.org> | 2024-11-14 15:36:46 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-11-14 15:36:46 +0000 |
| commit | 9a5a75bf1f485e2d109303a996d147b94c5e79c9 (patch) | |
| tree | f931f0d17bef0b6ad980aaf3d2d8b874ef2b749c /kernel/task_work.c | |
| parent | f3f9f0de30a5106078cd610f80eaa6f9386b2186 (diff) | |
| parent | 3b7e11a0116c30848d44429650ad80f9cc3bd963 (diff) | |
ASoc: simple-mux: Allow to specify an idle-state
Merge series from "Hendrik v. Raven" <h.v.raven@merzmedtech.de>:
This series adds support for the idle-state property from the mux
framework to the simple-mux audio variant. It allows to specify the state
of the mux when it is not in use.
Diffstat (limited to 'kernel/task_work.c')
| -rw-r--r-- | kernel/task_work.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/kernel/task_work.c b/kernel/task_work.c index 5d14d639ac71..c969f1f26be5 100644 --- a/kernel/task_work.c +++ b/kernel/task_work.c @@ -55,15 +55,26 @@ int task_work_add(struct task_struct *task, struct callback_head *work, enum task_work_notify_mode notify) { struct callback_head *head; + int flags = notify & TWA_FLAGS; + notify &= ~TWA_FLAGS; if (notify == TWA_NMI_CURRENT) { if (WARN_ON_ONCE(task != current)) return -EINVAL; if (!IS_ENABLED(CONFIG_IRQ_WORK)) return -EINVAL; } else { - /* record the work call stack in order to print it in KASAN reports */ - kasan_record_aux_stack(work); + /* + * Record the work call stack in order to print it in KASAN + * reports. + * + * Note that stack allocation can fail if TWAF_NO_ALLOC flag + * is set and new page is needed to expand the stack buffer. + */ + if (flags & TWAF_NO_ALLOC) + kasan_record_aux_stack_noalloc(work); + else + kasan_record_aux_stack(work); } head = READ_ONCE(task->task_works); |