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drivers: base: add coredump driver ops

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This adds the coredump driver operation. When the driver defines it
a coredump file is added in the sysfs folder of the device upon
driver binding. The file is removed when the driver is unbound.
User-space can trigger a coredump for this device by echo'ing to
the coredump file.

Signed-off-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arend van Spriel
2018-01-11 09:36:38 +01:00
committed by Greg Kroah-Hartman
parent 36d1d09af1
commit 3c47d19ff4
2 changed files with 34 additions and 8 deletions
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2
include/linux/device.h
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@@ -287,6 +287,7 @@ struct device_driver {
const struct attribute_group **groups;
const struct dev_pm_ops *pm;
int (*coredump) (struct device *dev);
struct driver_private *p;
};
@@ -300,7 +301,6 @@ extern struct device_driver *driver_find(const char *name,
extern int driver_probe_done(void);
extern void wait_for_device_probe(void);
/* sysfs interface for exporting driver attributes */
struct driver_attribute {