[PATCH 5.10 264/406] um: Fix hostaudio build errors

Greg Kroah-Hartman
2023-09-17T19:35:23Z

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit db4bfcba7bb8d10f00bba2a3da6b9a9c2a1d7b71 ]

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@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: lore.kernel.org/r/202307141416.vxuRVpFv-lkp@intel.com
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-um@lists.infradead.org
Cc: Tejun Heo <tj@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: linux-kbuild@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/um/configs/i386_defconfig | 1 +
arch/um/configs/x86_64_defconfig | 1 +
arch/um/drivers/Kconfig | 16 +++-------------
arch/um/drivers/Makefile | 2 +-
sound/Kconfig | 2 +-
5 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig
index fb51bd206dbed..4d7f99a02c1eb 100644
--- a/arch/um/configs/i386_defconfig
+++ b/arch/um/configs/i386_defconfig
@@ -35,6 +35,7 @@ CONFIG_TTY_CHAN=y
CONFIG_XTERM_CHAN=y
CONFIG_CON_CHAN="pts"
CONFIG_SSL_CHAN="pts"
+CONFIG_SOUND=m
CONFIG_UML_SOUND=m
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
index 477b873174243..4bdd83008f623 100644
--- a/arch/um/configs/x86_64_defconfig
+++ b/arch/um/configs/x86_64_defconfig
@@ -33,6 +33,7 @@ CONFIG_TTY_CHAN=y
CONFIG_XTERM_CHAN=y
CONFIG_CON_CHAN="pts"
CONFIG_SSL_CHAN="pts"
+CONFIG_SOUND=m
CONFIG_UML_SOUND=m
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
index 2e7b8e0e7194b..01dfbd57e29d7 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -104,24 +104,14 @@ config SSL_CHAN

config UML_SOUND
tristate "Sound support"
+ depends on SOUND
+ select SOUND_OSS_CORE
help
This option enables UML sound support. If enabled, it will pull in
- soundcore and the UML hostaudio relay, which acts as a intermediary
+ the UML hostaudio relay, which acts as a intermediary
between the host's dsp and mixer devices and the UML sound system.
It is safe to say 'Y' here.

-config SOUND
- tristate
- default UML_SOUND
-
-config SOUND_OSS_CORE
- bool
- default UML_SOUND
-
-config HOSTAUDIO
- tristate
- default UML_SOUND
-
endmenu

menu "UML Network Devices"
diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index 2a249f6194671..207d62ab519df 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -52,7 +52,7 @@ obj-$(CONFIG_UML_NET) += net.o
obj-$(CONFIG_MCONSOLE) += mconsole.o
obj-$(CONFIG_MMAPPER) += mmapper_kern.o
obj-$(CONFIG_BLK_DEV_UBD) += ubd.o
-obj-$(CONFIG_HOSTAUDIO) += hostaudio.o
+obj-$(CONFIG_UML_SOUND) += hostaudio.o
obj-$(CONFIG_NULL_CHAN) += null.o
obj-$(CONFIG_PORT_CHAN) += port.o
obj-$(CONFIG_PTY_CHAN) += pty.o
diff --git a/sound/Kconfig b/sound/Kconfig
index 36785410fbe15..aaf2022ffc57d 100644
--- a/sound/Kconfig
+++ b/sound/Kconfig
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
menuconfig SOUND
tristate "Sound card support"
- depends on HAS_IOMEM
+ depends on HAS_IOMEM || UML
help
If you have a sound card in your computer, i.e. if it can say more
than an occasional beep, say Y.
--
2.40.1