linux-kernel - [PATCH for -rc] kbuild: fix false section mismatch warning referring to .init.text.2

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Message-ID: <20080118190302.GA20285@uranus.ravnborg.org>
Date:	Fri, 18 Jan 2008 20:03:02 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Toralf Förster <toralf.foerster@....de>,
	linux-kernel@...r.kernel.org, rusty@...tcorp.com.au,
	WANG Cong <xiyou.wangcong@...il.com>
Subject: [PATCH for -rc] kbuild: fix false section mismatch warning referring to .init.text.2

Hi Linus.

Please pull following two-liner fix for modpost.
It silence an annoying section mismatch warning.

Pull from:

   ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/fix-kbuild.git

	Sam


>From 57ff41164d27cb577620a6e8085dd67cd8a87649 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@...nborg.org>
Date: Fri, 18 Jan 2008 19:54:51 +0100
Subject: [PATCH] kbuild: fix false section mismatch warning referring to .init.text.2
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit

The following section mismatch warning are false:
WARNING: vmlinux.o(.text.head+0x247): Section mismatch: reference to .init.text.1:start_kernel (between 'is386' and 'check_x87')

The problem was that modpost did not see a section named
".init.text.1" as an init section and thus it warned.

This patch fixes this so we no loneg see this warning.
Thanks to report from: Toralf Förster

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Toralf Förster <toralf.foerster@....de>
Cc: WANG Cong <xiyou.wangcong@...il.com>
---
 scripts/mod/modpost.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 93ac52a..b5f1cff 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -736,8 +736,8 @@ static int secref_whitelist(const char *modname, const char *tosec,
 
 	/* Check for pattern 3 */
 	if ((strcmp(fromsec, ".text.head") == 0) &&
-		((strcmp(tosec, ".init.data") == 0) ||
-		(strcmp(tosec, ".init.text") == 0)))
+		((strncmp(tosec, ".init.data", strlen(".init.data")) == 0) ||
+		(strncmp(tosec, ".init.text", strlen(".init.text")) == 0)))
 	return 1;
 
 	/* Check for pattern 4 */
-- 
1.5.4.rc3.14.g44397

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