From: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Use the 32bit reserved member of the struct sof_ipc_comp as the extended
data length, this will help to minimize the ABI change for adding new
extended data to the struct sof_ipc_comp, usually only minor ABI version
bump needed for every update with this new solution.
Signed-off-by: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
---
include/sound/sof/topology.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/sound/sof/topology.h b/include/sound/sof/topology.h
index 796b6c8e851d..d12736e14b69 100644
--- a/include/sound/sof/topology.h
+++ b/include/sound/sof/topology.h
@@ -57,8 +57,8 @@ struct sof_ipc_comp {
uint32_t pipeline_id;
uint32_t core;
- /* reserved for future use */
- uint32_t reserved[1];
+ /* extended data length, 0 if no extended data */
+ uint32_t ext_data_length;
} __packed;
/*
--
2.27.0
