markers: fix duplicate modpost entry

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
b2e3e658b3

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>
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mathieu Desnoyers 2008-07-21 14:21:38 -07:00 committed by Linus Torvalds
parent 5f17156fc5
commit d35cb360c2
3 changed files with 5 additions and 2 deletions

View file

@ -1148,7 +1148,8 @@ 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

View file

@ -101,6 +101,7 @@ 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

View file

@ -1992,6 +1992,7 @@ static void read_markers(const char *fname)
mod->skip = 1;
}
if (!mod->skip)
add_marker(mod, marker, fmt);
}
return;