modpost: pass around const struct sectioncheck * instead of enum mismatch

This prepares having a per-check whitelist of symbol names.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 598d54a0fefb25ddf00836c1742d092ceceea714..3f0380b8d8f787cd0def08de9d0b9c7807ae8c54 100644 (file)
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -933,7 +933,8 @@ const struct sectioncheck sectioncheck[] = {
 }
 };
 
-static int section_mismatch(const char *fromsec, const char *tosec)
+static const struct sectioncheck *section_mismatch(
+               const char *fromsec, const char *tosec)
 {
        int i;
        int elems = sizeof(sectioncheck) / sizeof(struct sectioncheck);
@@ -942,10 +943,10 @@ static int section_mismatch(const char *fromsec, const char *tosec)
        for (i = 0; i < elems; i++) {
                if (match(fromsec, check->fromsec) &&
                    match(tosec, check->tosec))
-                       return check->mismatch;
+                       return check;
                check++;
        }
-       return NO_MISMATCH;
+       return NULL;
 }
 
 /**
@@ -1158,7 +1159,8 @@ static int is_function(Elf_Sym *sym)
  * Try to find symbols near it so user can find it.
  * Check whitelist before warning - it may be a false positive.
  */
-static void report_sec_mismatch(const char *modname, enum mismatch mismatch,
+static void report_sec_mismatch(const char *modname,
+                               const struct sectioncheck *mismatch,
                                 const char *fromsec,
                                 unsigned long long fromaddr,
                                 const char *fromsym,
@@ -1189,7 +1191,7 @@ static void report_sec_mismatch(const char *modname, enum mismatch mismatch,
             modname, fromsec, fromaddr, from, fromsym, from_p, to, tosec,
             tosym, to_p);
 
-       switch (mismatch) {
+       switch (mismatch->mismatch) {
        case TEXT_TO_ANY_INIT:
                fprintf(stderr,
                "The function %s%s() references\n"
@@ -1289,11 +1291,11 @@ static void check_section_mismatch(const char *modname, struct elf_info *elf,
                                    Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
 {
        const char *tosec;
-       enum mismatch mismatch;
+       const struct sectioncheck *mismatch;
 
        tosec = sec_name(elf, sym->st_shndx);
        mismatch = section_mismatch(fromsec, tosec);
-       if (mismatch != NO_MISMATCH) {
+       if (mismatch) {
                Elf_Sym *to;
                Elf_Sym *from;
                const char *tosym;