linux-kernel - [PATCH] x86/microcode: Add explicit CPU vendor dependency

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Date:   Thu, 19 May 2022 17:03:10 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        X86 ML <x86@...nel.org>, Tony Luck <tony.luck@...el.com>
Subject: [PATCH] x86/microcode: Add explicit CPU vendor dependency

From: Borislav Petkov <bp@...e.de>

Add a explicit dependency to the respective CPU vendor so that the
respective microcode support for it gets built only when that support is
enabled.

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b0142e01002e..7ba627c60504 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1313,7 +1313,7 @@ config MICROCODE
 
 config MICROCODE_INTEL
 	bool "Intel microcode loading support"
-	depends on MICROCODE
+	depends on CPU_SUP_INTEL && MICROCODE
 	default MICROCODE
 	help
 	  This options enables microcode patch loading support for Intel
@@ -1325,7 +1325,7 @@ config MICROCODE_INTEL
 
 config MICROCODE_AMD
 	bool "AMD microcode loading support"
-	depends on MICROCODE
+	depends on CPU_SUP_AMD && MICROCODE
 	help
 	  If you select this option, microcode patch loading support for AMD
 	  processors will be enabled.
-- 
2.35.1

-- 
Regards/Gruss,
    Boris.

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