linux-kernel - [PATCH v2 1/1] x86/defconfigs: Explicitly unset CONFIG_64BIT in i386

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Message-ID: <20250626150118.318836-1-andriy.shevchenko@linux.intel.com>
Date: Thu, 26 Jun 2025 18:00:34 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Ingo Molnar <mingo@...nel.org>,
	linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 1/1] x86/defconfigs: Explicitly unset CONFIG_64BIT in i386_defconfig

A recent refresh of the defconfigs got rid of the following
(unset) configuration option:

  # CONFIG_64BIT is not set

Innocuous as it seems, when the configuration file is saved again
the behavior is changed so that CONFIG_64BIT=y.

Currently,

  $ make i386_defconfig
  $ grep CONFIG_64BIT .config
  CONFIG_64BIT=y

whereas previously (and with this patch):

  $ make i386_defconfig
  $ grep CONFIG_64BIT .config
  # CONFIG_64BIT is not set

This was found by cross-compilation of the 32-bit kernel on 64-bit machine
with the result of non-bootable kernel on Intel Galileo Gen 2 board.

Restore the missing explicitly unset CONFIG_64BIT in 32-bit defconfig.

Fixes: 0e11f689ec03 ("x86/kconfig/32: Refresh defconfig")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---

v2: fixed the authorship and amended the commit message (Boris)

 arch/x86/configs/i386_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index bd182325ebb4..9fc5c2eb58af 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -28,6 +28,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_PROFILING=y
 CONFIG_KEXEC=y
+# CONFIG_64BIT is not set
 CONFIG_SMP=y
 CONFIG_HYPERVISOR_GUEST=y
 CONFIG_PARAVIRT=y
-- 
2.47.2