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Subject[PATCH v2 4/5] isa: Remove ISA_BUS_API selection for ISA_BUS
ISA_BUS_API is selected by drivers themselves when necessary. The
ISA_BUS Kconfig option is now simply a mask for true ISA device drivers
and relevant configuration. For now, the ISA_BUS Kconfig option is only
available for X86, but may be added for other arch builds in the future
if the need arises.

Signed-off-by: William Breathitt Gray <>
arch/x86/Kconfig | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8eed3f94bfc7..5478c5beb302 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2608,11 +2608,13 @@ config PCI_CNB20LE_QUIRK
source "drivers/pci/Kconfig"

config ISA_BUS
- bool "ISA-style bus support on modern systems" if EXPERT
- select ISA_BUS_API
+ bool "ISA bus support on modern systems" if EXPERT
- Enables ISA-style drivers on modern systems. This is necessary to
- support PC/104 devices on X86_64 platforms.
+ Expose ISA bus device drivers and options available for selection and
+ configuration. Enable this option if your target machine has an ISA
+ bus. ISA is an older system, displaced by PCI and newer bus
+ architectures -- if your target machine is modern, it probably does
+ not have an ISA bus.

If unsure, say N.

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