kernel 4.14 depmod warnning

[James6xie]

Hi Devs:

I worked on loongson3 platform to build kernel 4.14.74 can go pass. but rpmbuild run depmod said something wrong as below, anyone has this expirence:

my build env is:
compileris : gcc version 7.3.1 20180303 (Red Hat 7.3.1-5) (GCC
binutils info： GNU ld version 2.28-11.fc21.loongson.4
kernel info: Linux kojibuilder3 3.10.84-19.fc21.loongson.2.mips64el #1 SMP PREEMPT Fri Jul 6 18:47:47 CST 2018 mips64 mips64 mips64 GNU/Linux

• cp /home/xzt/rpmbuild/SOURCES/filter-aarch64.sh /home/xzt/rpmbuild/SOURCES/filter-armv7hl.sh /home/xzt/rpmbuild/SOURCES/filter-i686.sh /home/xzt/rpmbuild/SOURCES/filter-mips64el.sh /home/xzt/rpmbuild/SOURCES/filter-modules.sh /home/xzt/rpmbuild/SOURCES/filter-ppc64.sh /home/xzt/rpmbuild/SOURCES/filter-ppc64le.sh /home/xzt/rpmbuild/SOURCES/filter-s390x.sh /home/xzt/rpmbuild/SOURCES/filter-x86_64.sh .
• /home/xzt/rpmbuild/SOURCES/filter-modules.sh modules.list mips64el
• rm filter-aarch64.sh filter-armv7hl.sh filter-i686.sh filter-mips64el.sh filter-modules.sh filter-ppc64.sh filter-ppc64le.sh filter-s390x.sh filter-x86_64.sh
• depmod -b . -aeF ./System.map 4.14.74-200.fc21.loongson.mips64el
• '[' -s depmod.out ']'
• echo 'Depmod failure'
  Depmod failure
• cat depmod.out
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_disable_device
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_unregister_driver
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_loop_config
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_request_io
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_register_driver
  depmod: WARNING: /home/xzt/rpmbuild/BUILDROOT/kernel-4.14.74-200.fc21.loongson.mips64el/./lib/modules/4.14.74-200.fc21.loongson.mips64el/kernel/drivers/ata/pata_pcmcia.ko needs unknown symbol pcmcia_enable_device
• exit 1
  error: Bad exit status from /var/tmp/rpm-tmp.p86fDJ (%build)

[James6xie]

maybe we need a EXPORT_SYMBOL patches ?

[FlyGoat]

Try 4.19 with loongson3_hpconfig?
It seemed like we have nothing to do with it since it should be a upstream issue.

[FlyGoat]

http://mirror.lemote.com:8000/fedora/fedora28-live/Fedora28_for_loongson-MATE-Live-2.iso

And you may try Fedora28 as build host since it have built in 4.19 kernel.

[James6xie]

http://mirror.lemote.com:8000/fedora/fedora28-live/Fedora28_for_loongson-MATE-Live-2.iso

And you may try Fedora28 as build host since it have built in 4.19 kernel.

Tx, I had try to build on a Fedora28_for_loongson-MATE-Live-2.iso installed OS.
I'd also had some truble as below:

1. Checkconfig will broken build process, because of CONFIG_PLUGIN_HOSTCC="g++" in SOURCES config , but genarated .config under configs/temp* CONFIG_PLUGIN_HOSTCC="" is empty.

2. I did not find any debug config , so i should disable {with_debuginfo} for mips, ethier build will broken, maybe we need a debug config on loongson3 or others;

3. IIO was not enable by kernel config, and i noticed someone comment iio in filelist section, but not comment releated rules in kernel.spec, it make building process broken.

That's all , the reason why who can take any idea.