kbuild: ignore references from ".pci_fixup" to ".init.text"

The modpost code is extended to ignore references
from ".pci_fixup" to ".init.text".

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>

1 files changed, 12 insertions, 4 deletions

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index dfde0e87a765..5028d46a8f35 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -581,8 +581,8 @@ static int strrcmp(const char *s, const char *sub)
  *   fromsec = .data
  *   atsym = *driver, *_template, *_sht, *_ops, *_probe, *probe_one
  **/
-static int secref_whitelist(const char *tosec, const char *fromsec,
-                            const char *atsym)
+static int secref_whitelist(const char *modname, const char *tosec,
+                            const char *fromsec, const char *atsym)
 {
         int f1 = 1, f2 = 1;
         const char **s;
@@ -618,8 +618,15 @@ static int secref_whitelist(const char *tosec, const char *fromsec,
         for (s = pat2sym; *s; s++)
                 if (strrcmp(atsym, *s) == 0)
                         f1 = 1;
+        if (f1 && f2)
+                return 1;
 
-        return f1 && f2;
+        /* Whitelist all references from .pci_fixup section if vmlinux */
+        if (is_vmlinux(modname)) {
+                if ((strcmp(fromsec, ".pci_fixup") == 0) &&
+                    (strcmp(tosec, ".init.text") == 0))
+                return 1;
+        }
 }
 
 /**
@@ -726,7 +733,8 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
 
         /* check whitelist - we may ignore it */
         if (before &&
-            secref_whitelist(secname, fromsec, elf->strtab + before->st_name))
+            secref_whitelist(modname, secname, fromsec,
+                             elf->strtab + before->st_name))
                 return;
 
         if (before && after) {