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Subject[PATCH V2 2/2] x86: IOSF: Change IOSF_MBI Kconfig to default y
From: "David E. Box" <>

The IOSF Mailbox interface is an access mechanism used by multiple drivers to
communicate with key configuration registers on new Intel SOC platforms. The
interface is ubiquitous enough that we need to ensure the availability of the
driver in non-EXPERT x86 kernels.

Signed-off-by: David E. Box <>
arch/x86/Kconfig | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d3b1f8b..4de5205 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2385,11 +2385,12 @@ config X86_DMA_REMAP
depends on STA2X11

config IOSF_MBI
- bool
+ bool "IOSF MBI support" if EXPERT
+ default y
depends on PCI
To be selected by modules requiring access to the Intel OnChip System
- Fabric (IOSF) Sideband MailBox Interface (MBI). For MBI platforms
+ Fabric (IOSF) Sideband MailBox Interface (MBI). For IOSF platforms
enumerable by PCI.

source "net/Kconfig"

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