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| author |   Karol Trzcinski <karolx.trzcinski@linux.intel.com> | 2020-08-25 16:58:51 -0700 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-08-26 12:44:07 +0100 |
| commit | 76ab546cd8f0c64d4603b2faad4558c5b670561e (patch) | |
| tree | 16577f8d749c4b7c0caf3c8a2394b4c52ea4f2c2 /sound/soc/sof/loader.c | |
| parent | Merge series "ASoC: SOF: trivial code/log/comment improvements" from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>: (diff) | |
| download | wireguard-linux-76ab546cd8f0c64d4603b2faad4558c5b670561e.tar.xz wireguard-linux-76ab546cd8f0c64d4603b2faad4558c5b670561e.zip | |
ASoC: SOF: IPC: make sof_ipc_window monosized
This step is needed to add possibility to pack sof_ipc_window inside
another one in used FW build tools - for example in extended manifest.
Structure reusability leads to easy parsing function reuse, so source
code is shorter and easier to maintain.
Using structures with constant size is less tricky and properly
supported by each toolchain by contrast to variable size elements.
This is minor ABI change - backward compatibility is kept.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200825235854.1588034-2-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/loader.c')
| -rw-r--r-- | sound/soc/sof/loader.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c index b94fa5f5d480..25dc28ebafb7 100644 --- a/sound/soc/sof/loader.c +++ b/sound/soc/sof/loader.c @@ -20,13 +20,12 @@ static int get_ext_windows(struct snd_sof_dev *sdev, { const struct sof_ipc_window *w = container_of(ext_hdr, struct sof_ipc_window, ext_hdr); - size_t w_size = struct_size(w, window, w->num_windows); if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS) return -EINVAL; if (sdev->info_window) { - if (memcmp(sdev->info_window, w, w_size)) { + if (memcmp(sdev->info_window, w, ext_hdr->hdr.size)) { dev_err(sdev->dev, "error: mismatch between window descriptor from extended manifest and mailbox"); return -EINVAL; } @@ -34,7 +33,7 @@ static int get_ext_windows(struct snd_sof_dev *sdev, } /* keep a local copy of the data */ - sdev->info_window = kmemdup(w, w_size, GFP_KERNEL); + sdev->info_window = kmemdup(w, ext_hdr->hdr.size, GFP_KERNEL); if (!sdev->info_window) return -ENOMEM; |