Commit 7d34ca38 authored by Saravana Kannan's avatar Saravana Kannan Committed by Rob Herring
Browse files

driver core: Add device_is_dependent() to linux/device.h 



DT implementation of fw_devlink needs this function to detect cycles. So
make it available.

Signed-off-by: default avatarSaravana Kannan <saravanak@google.com>
Tested-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 418370ff

drivers/base/core.c

+1 −1
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ int device_links_read_lock_held(void) 
 * Check if @target depends on @dev or any device dependent on it (its child or

 * its consumer etc).  Return 1 if that is the case or 0 otherwise.

 */

static int device_is_dependent(struct device *dev, void *target)

int device_is_dependent(struct device *dev, void *target)

{

	struct device_link *link;

	int ret;

include/linux/device.h

+1 −0
Original line number Diff line number Diff line
@@ -829,6 +829,7 @@ extern int device_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid); 
extern const char *device_get_devnode(struct device *dev,

				      umode_t *mode, kuid_t *uid, kgid_t *gid,

				      const char **tmp);

extern int device_is_dependent(struct device *dev, void *target);



static inline bool device_supports_offline(struct device *dev)

{