[PATCH v3 1/2] kconfig: Remove the architecture specific config for AutoFDO

[xur at google.com]

From: Rong Xu <xur at google.com>

The CONFIG_AUTOFDO_CLANG option currently depends on
ARCH_SUPPORTS_AUTOFDO_CLANG, but this dependency seems unnecessary.

Remove ARCH_SUPPORTS_AUTOFDO_CLANG and allow users to control AutoFDO
builds solely through CONFIG_AUTOFDO_CLANG. This simplifies the kconfig
and avoids potential confusion.

Signed-off-by: Rong Xu <xur at google.com>
Suggested-by: Will Deacon <will at kernel.org>
Tested-by: Yabin Cui <yabinc at google.com>
Reviewed-by: Kees Cook <kees at kernel.org>
---
 arch/Kconfig     | 4 ----
 arch/x86/Kconfig | 1 -
 2 files changed, 5 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index e86880045158..e510c585ea84 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -863,12 +863,8 @@ config LTO_CLANG_THIN
 	  If unsure, say Y.
 endchoice
 
-config ARCH_SUPPORTS_AUTOFDO_CLANG
-	bool
-
 config AUTOFDO_CLANG
 	bool "Enable Clang's AutoFDO build (EXPERIMENTAL)"
-	depends on ARCH_SUPPORTS_AUTOFDO_CLANG
 	depends on CC_IS_CLANG && CLANG_VERSION >= 170000
 	help
 	  This option enables Clang’s AutoFDO build. When
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f3f7cb01d69d..10bf3984102e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -130,7 +130,6 @@ config X86
 	select ARCH_SUPPORTS_LTO_CLANG
 	select ARCH_SUPPORTS_LTO_CLANG_THIN
 	select ARCH_SUPPORTS_RT
-	select ARCH_SUPPORTS_AUTOFDO_CLANG
 	select ARCH_SUPPORTS_PROPELLER_CLANG    if X86_64
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF		if X86_CX8
-- 
2.54.0.794.g4f17f83d09-goog