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authorStefan Richter <stefanr@s5r6.in-berlin.de>2009-06-06 18:35:27 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-06-06 21:45:50 +0200
commite5110d011e03030926872457f05e49e3d5031737 (patch)
tree09037ffddcea6f5b8b18ab20035904408d2869ea /include/linux/firewire.h
parente71d31da062095d8b0b02a26fb5e8879e8d3d0de (diff)
firewire: add parent-of-unit accessor
Retrieval of an fw_unit's parent is a common pattern in high-level code. Wrap it up as device = fw_parent_device(unit). Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'include/linux/firewire.h')
-rw-r--r--include/linux/firewire.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index e979f9b22cb6..a69aea0394e3 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -248,6 +248,11 @@ static inline void fw_unit_put(struct fw_unit *unit)
put_device(&unit->device);
}
+static inline struct fw_device *fw_parent_device(struct fw_unit *unit)
+{
+ return fw_device(unit->device.parent);
+}
+
struct ieee1394_device_id;
struct fw_driver {