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PM: sleep: Add device name to suspend_report_result()

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Currently, suspend_report_result() prints only function information.

If any driver uses a common PM function, nobody knows who exactly
called the failing function.

A device pinter is needed to recognize the failing device.

For example:

 PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x10 returns 0
 PM: dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns 0

become after the change:

 serial 00:05: PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x10 returns 0
 pci 0000:00:01.3: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns 0

Signed-off-by: Youngjin Jang <yj84.jang@samsung.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Youngjin Jang 2022-03-08 04:07:39 +09:00 • committed by Rafael J. Wysocki
parent 7a64ca17e4
commit a759de6991
5 changed files with 19 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/linux/pm.h
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@ -770,11 +770,11 @@ extern int dpm_suspend_late(pm_message_t state);
extern int dpm_suspend(pm_message_t state);
extern int dpm_prepare(pm_message_t state);
extern void __suspend_report_result(const char *function, void *fn, int ret);
extern void __suspend_report_result(const char *function, struct device *dev, void *fn, int ret);
#define suspend_report_result(fn, ret) \
#define suspend_report_result(dev, fn, ret) \
do { \
__suspend_report_result(__func__, fn, ret); \
__suspend_report_result(__func__, dev, fn, ret); \
} while (0)
extern int device_pm_wait_for_dev(struct device *sub, struct device *dev);
@ -814,7 +814,7 @@ static inline int dpm_suspend_start(pm_message_t state)
return 0;
}
#define suspend_report_result(fn, ret) do {} while (0)
#define suspend_report_result(dev, fn, ret) do {} while (0)
static inline int device_pm_wait_for_dev(struct device *a, struct device *b)
{