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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-10-21 21:13:10 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-11-02 18:14:07 +0100 |
| commit | d6e36668598154820177bfd78c1621d8e6c580a2 (patch) | |
| tree | 778eb037862c5e16ef0ff5603f6f3d85117b0f3a /include | |
| parent | PM: runtime: Drop runtime PM references to supplier on link removal (diff) | |
| download | linux-d6e36668598154820177bfd78c1621d8e6c580a2.tar.xz linux-d6e36668598154820177bfd78c1621d8e6c580a2.zip | |
PM: runtime: Drop pm_runtime_clean_up_links()
After commit d12544fb2aa9 ("PM: runtime: Remove link state checks in
rpm_get/put_supplier()") nothing prevents the consumer device's
runtime PM from acquiring additional references to the supplier
device after pm_runtime_clean_up_links() has run (or even while it
is running), so calling this function from __device_release_driver()
may be pointless (or even harmful).
Moreover, it ignores stateless device links, so the runtime PM
handling of managed and stateless device links is inconsistent
because of it, so better get rid of it entirely.
Fixes: d12544fb2aa9 ("PM: runtime: Remove link state checks in rpm_get/put_supplier()")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 5.1+ <stable@vger.kernel.org> # 5.1+
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pm_runtime.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index eadc1fdebce6..4b708f4e8eed 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -54,7 +54,6 @@ extern u64 pm_runtime_autosuspend_expiration(struct device *dev); extern void pm_runtime_update_max_time_suspended(struct device *dev, s64 delta_ns); extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable); -extern void pm_runtime_clean_up_links(struct device *dev); extern void pm_runtime_get_suppliers(struct device *dev); extern void pm_runtime_put_suppliers(struct device *dev); extern void pm_runtime_new_link(struct device *dev); @@ -276,7 +275,6 @@ static inline u64 pm_runtime_autosuspend_expiration( struct device *dev) { return 0; } static inline void pm_runtime_set_memalloc_noio(struct device *dev, bool enable){} -static inline void pm_runtime_clean_up_links(struct device *dev) {} static inline void pm_runtime_get_suppliers(struct device *dev) {} static inline void pm_runtime_put_suppliers(struct device *dev) {} static inline void pm_runtime_new_link(struct device *dev) {} |