[PATCH v5] um/drivers: fix hostaudio build errors

[Masahiro Yamada]

On Wed, Aug 2, 2023 at 2:15 PM Randy Dunlap <rdunlap at infradead.org> wrote:
>
> Use "select" to ensure that the required kconfig symbols are set
> as expected.
> Drop HOSTAUDIO since it is now equivalent to UML_SOUND.
>
> Set CONFIG_SOUND=m in ARCH=um defconfig files to maintain the
> status quo of the default configs.
>
> Allow SOUND with UML regardless of HAS_IOMEM. Otherwise there is a
> kconfig warning for unmet dependencies. (This was not an issue when
> SOUND was defined in arch/um/drivers/Kconfig. I have done 50 randconfig
> builds and didn't find any issues.)
>
> This fixes build errors when CONFIG_SOUND is not set:
>
> ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_cleanup_module':
> hostaudio_kern.c:(.exit.text+0xa): undefined reference to `unregister_sound_mixer'
> ld: hostaudio_kern.c:(.exit.text+0x15): undefined reference to `unregister_sound_dsp'
> ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_init_module':
> hostaudio_kern.c:(.init.text+0x19): undefined reference to `register_sound_dsp'
> ld: hostaudio_kern.c:(.init.text+0x31): undefined reference to `register_sound_mixer'
> ld: hostaudio_kern.c:(.init.text+0x49): undefined reference to `unregister_sound_dsp'
>
> and this kconfig warning:
> WARNING: unmet direct dependencies detected for SOUND
>
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Fixes: d886e87cb82b ("sound: make OSS sound core optional")
> Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
> Reported-by: kernel test robot <lkp at intel.com>
> Closes: lore.kernel.org/r/202307141416.vxuRVpFv-lkp at intel.com
> Cc: Richard Weinberger <richard at nod.at>
> Cc: Anton Ivanov <anton.ivanov at cambridgegreys.com>
> Cc: Johannes Berg <johannes at sipsolutions.net>
> Cc: linux-um at lists.infradead.org
> Cc: Tejun Heo <tj at kernel.org>
> Cc: Takashi Iwai <tiwai at suse.de>
> Cc: Jaroslav Kysela <perex at perex.cz>
> Cc: Masahiro Yamada <masahiroy at kernel.org>



Reviewed-by: Masahiro Yamada <masahiroy at kernel.org>


-- 
Best Regards
Masahiro Yamada