Hi Baolin & Yintang,
This build error may be caused by commit cce1396936ef（“ASoC: sprd: Add Spreadtrum audio compress offload support”）.
Perhaps this line:
+obj-$(CONFIG_SND_SOC_SPRD) += sprd-pcm-dma.o sprd-pcm-compress.o
may be changed to:
obj-$(CONFIG_SND_SOC_SPRD) += sprd-pcm-dma.o
sprd-pcm-dma-objs += sprd-pcm-compress.o
---
Best wishes
Wen
> Hi Wen,
>
> First bad commit (maybe != root cause):
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2
> head: 6d5e2bf9d203e4d9e08ca2e9420c6ff22ad190af
> commit: c705247136a523488eac806bd357c3e5d79a7acd [105/107] ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put
> config: mips-allmodconfig (attached as .config)
> compiler: mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout c705247136a523488eac806bd357c3e5d79a7acd
> # save the attached .config to linux build tree
> GCC_VERSION=7.2.0 make.cross ARCH=mips
>
> All errors (new ones prefixed by >>):
>
> >> ERROR: "sprd_platform_compr_ops" [sound/soc/sprd/sprd-pcm-dma.ko] undefined!
>Attachment:
.config.gz
Description: Binary data
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