From: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Date: Tue, 22 Jul 2008 20:05:14 +0000 (+0000)
Subject: markers: fix duplicate modpost entry
X-Git-Tag: v2.6.25.14~20
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b7bca7cc5bc852fb7c1a4137912c5f549b8bf7b;p=thirdparty%2Fkernel%2Fstable.git

markers: fix duplicate modpost entry

commit: d35cb360c29956510b2fe1a953bd4968536f7216

When a kernel was rebuilt, the previous Module.markers was not cleared.
It caused markers with different format strings to appear as duplicates
when a markers was changed.  This problem is present since
scripts/mod/modpost.c started to generate Module.markers, commit
b2e3e658b344c6bcfb8fb694100ab2f2b5b2edb0

It therefore applies to 2.6.25, 2.6.26 and linux-next.

I merely merged the patches from Roland, Wenji and Takashi here.

Credits to
Roland McGrath <roland@redhat.com>
Wenji Huang <wenji.huang@oracle.com>
and
Takashi Nishiie <t-nishiie@np.css.fujitsu.com>

for providing the individual fixes.

- Changelog :
  - Integrated Takashi's Makefile modification to clear Module.markers upon
    make clean.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Roland McGrath <roland@redhat.com>
Cc: Wenji Huang <wenji.huang@oracle.com>
Cc: Takashi Nishiie <t-nishiie@np.css.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/Makefile b/Makefile
index dfc5a884494e7..4ca18b7c3dfaf 100644
--- a/Makefile
+++ b/Makefile
@@ -1126,7 +1126,8 @@ clean: archclean $(clean-dirs)
 	@find . $(RCS_FIND_IGNORE) \
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-		-o -name '*.symtypes' -o -name 'modules.order' \) \
+		-o -name '*.symtypes' -o -name 'modules.order' \
+		-o -name 'Module.markers' \) \
 		-type f -print | xargs rm -f
 
 # mrproper - Delete all generated files, including .config
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 2d20640854b74..af21ea99f1928 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -87,6 +87,7 @@ quiet_cmd_kernel-mod = MODPOST $@
       cmd_kernel-mod = $(modpost) $@
 
 vmlinux.o: FORCE
+	@rm -fr $(kernelmarkersfile)
 	$(call cmd,kernel-mod)
 
 # Declare generated files as targets for modpost
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 110cf243fa4e5..7b16b365ebdff 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1973,7 +1973,8 @@ static void read_markers(const char *fname)
 			mod->skip = 1;
 		}
 
-		add_marker(mod, marker, fmt);
+		if (!mod->skip)
+			add_marker(mod, marker, fmt);
 	}
 	return;
 fail: