linux-kernel - [tip: x86/urgent] x86/boot: Mark prepare_command_line() _

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Message-ID: <163775705801.11128.3487083142973026661.tip-bot2@tip-bot2>
Date:   Wed, 24 Nov 2021 12:30:58 -0000
From:   "tip-bot2 for Borislav Petkov" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Borislav Petkov <bp@...e.de>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/urgent] x86/boot: Mark prepare_command_line() __init

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     c0f2077baa4113f38f008b8e912b9fb3ff8d43df
Gitweb:        https://git.kernel.org/tip/c0f2077baa4113f38f008b8e912b9fb3ff8d43df
Author:        Borislav Petkov <bp@...e.de>
AuthorDate:    Tue, 23 Nov 2021 08:04:34 +01:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 24 Nov 2021 12:20:24 +01:00

x86/boot: Mark prepare_command_line() __init

Fix:

  WARNING: modpost: vmlinux.o(.text.unlikely+0x64d0): Section mismatch in reference \
   from the function prepare_command_line() to the variable .init.data:command_line
  The function prepare_command_line() references
  the variable __initdata command_line.
  This is often because prepare_command_line lacks a __initdata
  annotation or the annotation of command_line is wrong.

Apparently some toolchains do different inlining decisions.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Borislav Petkov <bp@...e.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/YZySgpmBcNNM2qca@zn.tnic
---
 arch/x86/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c410be7..6a190c7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -742,7 +742,7 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 	return 0;
 }
 
-static char *prepare_command_line(void)
+static char * __init prepare_command_line(void)
 {
 #ifdef CONFIG_CMDLINE_BOOL
 #ifdef CONFIG_CMDLINE_OVERRIDE