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PM: runtime: add might_sleep to PM runtime functions
The list of functions that can be called in atomic context is non-intuitive (pm_runtime_put_sync can not, but pm_runtime_put_sync_suspend can, if pm_runtime_irq_safe has been called?). The code is actively misleading - the entry points all start with spin_lock_irqsave, suggesting they are safe to call in atomic context, but may later enable interrupts. Add might_sleep_if to all the __pm_runtime_* entry points to enforce correct usage. Also add pm_runtime_put_sync_autosuspend to the list of functions that can be called in atomic context. Change-Id: Icac17a10d77c64d44bd2761a91a588dfd1d0c6f0 Signed-off-by: Colin Cross <email@example.com>
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