| Subject | Re: [alsa-devel] [PATCH AUTOSEL 5.5 406/542] ASoC: SOF: Intel: hda: Fix SKL dai count | From | Pierre-Louis Bossart <> | Date | Thu, 27 Feb 2020 18:31:16 -0600 |
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Hi Sasha,
On 2/14/20 9:46 AM, Sasha Levin wrote: > From: Cezary Rojewski <cezary.rojewski@intel.com> > > [ Upstream commit a6947c9d86bcfd61b758b5693eba58defe7fd2ae ] > > With fourth pin added for iDisp for skl_dai, update SOF_SKL_DAI_NUM to > account for the change. Without this, dais from the bottom of the list > are skipped. In current state that's the case for 'Alt Analog CPU DAI'. > > Fixes: ac42b142cd76 ("ASoC: SOF: Intel: hda: Add iDisp4 DAI")
This patch generates a kernel oops with v5.5.6 - mainly because the initial commit ac42b142cd76 is missing, which ends-up creating an empty entry in the skl_dai[] array.
This was just reported to us, see logs at https://github.com/thesofproject/sof/issues/2418
the same problem is likely to happen with 5.4-stable [PATCH AUTOSEL 5.4 349/459] ASoC: SOF: Intel: hda: Fix SKL dai count
Since the initial commit to be fixed was not included, the -stable branches should probably revert this patch? Adding ac42b142cd76 should also not generate any problems, I tested it on top of v5.5.6
The 'right' fix should be to use ARRAY_SIZE instead of hard-coded defines, but there are multiple dependencies so we'd probably need to refactor the code to so so.
Let me know if you want more details or additional help, -Pierre
> Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> > Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> > Link: https://lore.kernel.org/r/20200113114054.9716-1-cezary.rojewski@intel.com > Signed-off-by: Mark Brown <broonie@kernel.org> > Signed-off-by: Sasha Levin <sashal@kernel.org> > --- > sound/soc/sof/intel/hda.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h > index 63df888dddb6c..de0115294c74e 100644 > --- a/sound/soc/sof/intel/hda.h > +++ b/sound/soc/sof/intel/hda.h > @@ -348,7 +348,7 @@ > > /* Number of DAIs */ > #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) > -#define SOF_SKL_NUM_DAIS 14 > +#define SOF_SKL_NUM_DAIS 15 > #else > #define SOF_SKL_NUM_DAIS 8 > #endif >
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