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ASoC: SOF: use the sof_ipc_comp reserved bytes for extended data 

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@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200904132744.1699575-6-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Keyon Jie 2020-09-04 16:27:33 +03:00 committed by Mark Brown
parent 929e427a9c
commit 50b55fd463
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
include/sound/sof/topology.h
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@ -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;
/*