linux-kernel - [PATCH v2 1/2] driver core: Export device_link_flag_is_sync_state

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Message-ID: <20250911112058.3610201-1-treapking@chromium.org>
Date: Thu, 11 Sep 2025 19:16:02 +0800
From: Pin-yen Lin <treapking@...omium.org>
To: "Rafael J . Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Pavel Machek <pavel@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>
Cc: Hsin-Te Yuan <yuanhsinte@...omium.org>,
	linux-pm@...r.kernel.org,
	Chen-Yu Tsai <wenst@...omium.org>,
	linux-kernel@...r.kernel.org,
	Pin-yen Lin <treapking@...omium.org>
Subject: [PATCH v2 1/2] driver core: Export device_link_flag_is_sync_state_only()

Export device_link_flag_is_sync_state_only() for future patches.

Signed-off-by: Pin-yen Lin <treapking@...omium.org>

---

Changes in v2:
- New in v2

 drivers/base/core.c    | 3 ++-
 include/linux/device.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index d22d6b23e758..cc6af9b0d59d 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -287,10 +287,11 @@ static bool device_is_ancestor(struct device *dev, struct device *target)
 #define DL_MARKER_FLAGS		(DL_FLAG_INFERRED | \
 				 DL_FLAG_CYCLE | \
 				 DL_FLAG_MANAGED)
-static inline bool device_link_flag_is_sync_state_only(u32 flags)
+bool device_link_flag_is_sync_state_only(u32 flags)
 {
 	return (flags & ~DL_MARKER_FLAGS) == DL_FLAG_SYNC_STATE_ONLY;
 }
+EXPORT_SYMBOL_GPL(device_link_flag_is_sync_state_only);
 
 /**
  * device_is_dependent - Check if one device depends on another one
diff --git a/include/linux/device.h b/include/linux/device.h
index 0470d19da7f2..e27d0bf7c43d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1197,6 +1197,7 @@ const char *dev_driver_string(const struct device *dev);
 struct device_link *device_link_add(struct device *consumer,
 				    struct device *supplier, u32 flags);
 void device_link_del(struct device_link *link);
+bool device_link_flag_is_sync_state_only(u32 flags);
 void device_link_remove(void *consumer, struct device *supplier);
 void device_links_supplier_sync_state_pause(void);
 void device_links_supplier_sync_state_resume(void);
-- 
2.51.0.384.g4c02a37b29-goog