build kernel 4.20

[antonellocaroli]

the build fails with the 4.20 kernel, it has suggestions

[MichaIng]

@antonellocaroli
I guess some more info is required, e.g. the exact build output and error message.

Where did you actually get kernel v4.20 from? 🙂

Take care that the gcc version needs to match the one from cat /proc/version, perhaps that is different with your kernel version.

[antonellocaroli]

@MichaIng

make -C /media/catalyst/Raspberry64/kernel/kernel-GentooplayerB-rcu/lib/modules/4.20.6-GentooplayerB-rcu-v8+/source SUBDIRS=/media/catalyst/Raspberry64/I-Sabre-K2M KBUILD_VERBOSE=0 modules make[1]: ingresso nella directory "/media/catalyst/Raspberry64/linux" CC [M] /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.o /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_dai_startup_slave’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:156:35: error: ‘struct snd_soc_dai’ has no member named ‘codec’ struct snd_soc_codec *codec = dai->codec; ^~ In file included from ./include/linux/i2c.h:30, from /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:21: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:162:16: error: dereferencing pointer to incomplete type ‘struct snd_soc_codec’ dev_err(codec->dev, "Failed to setup rates constraints: %d\n", ret); ^~ ./include/linux/device.h:1453:11: note: in definition of macro ‘dev_err’ _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_dai_startup’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:171:40: error: ‘struct snd_soc_dai’ has no member named ‘codec’ struct snd_soc_codec *codec = dai->codec; ^~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:173:8: error: implicit declaration of function ‘snd_soc_codec_get_drvdata’; did you mean ‘snd_soc_dai_get_drvdata’? [-Werror=implicit-function-declaration] = snd_soc_codec_get_drvdata(codec); ^~~~~~~~~~~~~~~~~~~~~~~~~ snd_soc_dai_get_drvdata /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:173:8: warning: initialization of ‘struct i_sabre_codec_priv *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_hw_params’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:188:40: error: ‘struct snd_soc_dai’ has no member named ‘codec’ struct snd_soc_codec *codec = dai->codec; ^~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:190:8: warning: initialization of ‘struct i_sabre_codec_priv *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] = snd_soc_codec_get_drvdata(codec); ^~~~~~~~~~~~~~~~~~~~~~~~~ In file included from ./include/linux/i2c.h:30, from /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:21: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:194:15: error: dereferencing pointer to incomplete type ‘struct snd_soc_codec’ dev_dbg(codec->dev, "hw_params %u Hz, %u channels\n", ^~ ./include/linux/device.h:1471:26: note: in definition of macro ‘dev_dbg’ dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \ ^~~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:220:3: error: implicit declaration of function ‘snd_soc_update_bits’; did you mean ‘snd_ac97_update_bits’? [-Werror=implicit-function-declaration] snd_soc_update_bits(codec, ISABRECODEC_REG_10, 0x01, 0x00); ^~~~~~~~~~~~~~~~~~~ snd_ac97_update_bits /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_set_fmt’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:234:40: error: ‘struct snd_soc_dai’ has no member named ‘codec’ struct snd_soc_codec *codec = dai->codec; ^~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:236:8: warning: initialization of ‘struct i_sabre_codec_priv *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] = snd_soc_codec_get_drvdata(codec); ^~~~~~~~~~~~~~~~~~~~~~~~~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_dac_mute’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:262:35: error: ‘struct snd_soc_dai’ has no member named ‘codec’ struct snd_soc_codec *codec = dai->codec; ^~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: At top level: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:296:15: error: variable ‘i_sabre_codec_codec_driver’ has initializer but incomplete type static struct snd_soc_codec_driver i_sabre_codec_codec_driver = { ^~~~~~~~~~~~~~~~~~~~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:297:3: error: ‘struct snd_soc_codec_driver’ has no member named ‘component_driver’ .component_driver = { ^~~~~~~~~~~~~~~~ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:297:22: error: extra brace group at end of initializer .component_driver = { ^ /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:297:22: note: (near initialization for ‘i_sabre_codec_codec_driver’) /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:297:22: warning: excess elements in struct initializer /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:297:22: note: (near initialization for ‘i_sabre_codec_codec_driver’) /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_probe’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:335:8: error: implicit declaration of function ‘snd_soc_register_codec’; did you mean ‘snd_soc_register_dai’? [-Werror=implicit-function-declaration] ret = snd_soc_register_codec(dev, ^~~~~~~~~~~~~~~~~~~~~~ snd_soc_register_dai /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: In function ‘i_sabre_codec_remove’: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:347:2: error: implicit declaration of function ‘snd_soc_unregister_codec’; did you mean ‘snd_soc_unregister_card’? [-Werror=implicit-function-declaration] snd_soc_unregister_codec(dev); ^~~~~~~~~~~~~~~~~~~~~~~~ snd_soc_unregister_card /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c: At top level: /media/catalyst/Raspberry64/I-Sabre-K2M/i-sabre-codec.c:296:36: error: storage size of ‘i_sabre_codec_codec_driver’ isn’t known static struct snd_soc_codec_driver i_sabre_codec_codec_driver = { ^~~~~~~~~~~~~~~~~~~~~~~~~~

https://github.com/raspberrypi/linux/tree/rpi-4.20.y

[MichaIng]

i-sabre-codec.c:156:35: error: ‘struct snd_soc_dai’ has no member named ‘codec’

Okay this will be helpful.

Only thing I can say is that, if there is no real reason for using Kernel 4.20, I wouldn't do it. It is not even used in the RPi firmware next branch (currently on 4.19): https://github.com/raspberrypi/firmware/tree/next
And the master and stable branches are on 4.14. So errors like this are not too unlikely, I guess.