From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- sound/Kconfig | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 sound/Kconfig (limited to 'sound/Kconfig') diff --git a/sound/Kconfig b/sound/Kconfig new file mode 100644 index 000000000..8b4020539 --- /dev/null +++ b/sound/Kconfig @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: GPL-2.0-only +menuconfig SOUND + tristate "Sound card support" + depends on HAS_IOMEM || INDIRECT_IOMEM + help + If you have a sound card in your computer, i.e. if it can say more + than an occasional beep, say Y. + +if SOUND + +config SOUND_OSS_CORE + bool + default n + +config SOUND_OSS_CORE_PRECLAIM + bool "Preclaim OSS device numbers" + depends on SOUND_OSS_CORE + default y + help + With this option enabled, the kernel will claim all OSS device + numbers if any OSS support (native or emulation) is enabled + whether the respective module is loaded or not and try to load the + appropriate module using sound-slot/service-* and char-major-* + module aliases when one of the device numbers is opened. With + this option disabled, kernel will only claim actually in-use + device numbers and opening a missing device will generate only the + standard char-major-* aliases. + + The only visible difference is use of additional module aliases + and whether OSS sound devices appear multiple times in + /proc/devices. sound-slot/service-* module aliases are scheduled + to be removed (ie. PRECLAIM won't be available) and this option is + to make the transition easier. This option can be overridden + during boot using the kernel parameter soundcore.preclaim_oss. + + Disabling this allows alternative OSS implementations. + + If unsure, say Y. + +source "sound/oss/dmasound/Kconfig" + +menuconfig SND + tristate "Advanced Linux Sound Architecture" + help + Say 'Y' or 'M' to enable ALSA (Advanced Linux Sound Architecture), + the new base sound system. + + For more information, see + +if SND + +source "sound/core/Kconfig" + +source "sound/drivers/Kconfig" + +source "sound/isa/Kconfig" + +source "sound/pci/Kconfig" + +source "sound/hda/Kconfig" + +source "sound/ppc/Kconfig" + +source "sound/ac97/Kconfig" + +source "sound/aoa/Kconfig" + +source "sound/arm/Kconfig" + +source "sound/atmel/Kconfig" + +source "sound/spi/Kconfig" + +source "sound/mips/Kconfig" + +source "sound/sh/Kconfig" + +# the following will depend on the order of config. +# here assuming USB is defined before ALSA +source "sound/usb/Kconfig" + +source "sound/firewire/Kconfig" + +# the following will depend on the order of config. +# here assuming PCMCIA is defined before ALSA +source "sound/pcmcia/Kconfig" + +source "sound/sparc/Kconfig" + +source "sound/parisc/Kconfig" + +source "sound/soc/Kconfig" + +source "sound/x86/Kconfig" + +source "sound/synth/Kconfig" + +source "sound/xen/Kconfig" + +source "sound/virtio/Kconfig" + +endif # SND + +endif # SOUND + +config AC97_BUS + tristate + help + This is used to avoid config and link hard dependencies between the + sound subsystem and other function drivers completely unrelated to + sound although they're sharing the AC97 bus. Concerned drivers + should "select" this. -- cgit v1.3.1