kbuild: disable modpost warnings for linkonce sections

Disable modpost warnings for linkonce sections

My build gives lots of warnings like

WARNING: sound/core/snd.o (.gnu.linkonce.wi.mpspec_def.h.30779716): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

But for .linkonce. duplicated sections are actually ok and expected.
So just disable the warning for this case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 757294b4f322..508c5895c680 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -721,7 +721,7 @@ static int check_section(const char *modname, const char *sec)
                 /* consume all digits */
                 while (*e && e != sec && isdigit(*e))
                         e--;
-                if (*e == '.') {
+                if (*e == '.' && !strstr(sec, ".linkonce")) {
                         warn("%s (%s): unexpected section name.\n"
                              "The (.[number]+) following section name are "
                              "ld generated and not expected.\n"