kbuild: make modpost section warnings clearer

Change modpost section mismatch warnings to be less confusing;
model them on the binutils linker warnings which we all know how
to interpret.

Also, fix the wrong ordering of arguments for the final case -
fromsec and refsymname were reversed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 16 insertions, 17 deletions

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 113dc77b9f60..2fcdbc7a1ee5 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -885,29 +885,28 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
                 return;
 
         if (before && after) {
-                warn("%s - Section mismatch: reference to %s:%s from %s "
-                     "between '%s' (at offset 0x%llx) and '%s'\n",
-                     modname, secname, refsymname, fromsec,
+                warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
+                     "(between '%s' and '%s')\n",
+                     modname, fromsec, (unsigned long long)r.r_offset,
+                     secname, refsymname,
                      elf->strtab + before->st_name,
-                     (long long)r.r_offset,
                      elf->strtab + after->st_name);
         } else if (before) {
-                warn("%s - Section mismatch: reference to %s:%s from %s "
-                     "after '%s' (at offset 0x%llx)\n",
-                     modname, secname, refsymname, fromsec,
-                     elf->strtab + before->st_name,
-                     (long long)r.r_offset);
+                warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
+                     "(after '%s')\n",
+                     modname, fromsec, (unsigned long long)r.r_offset,
+                     secname, refsymname,
+                     elf->strtab + before->st_name);
         } else if (after) {
-                warn("%s - Section mismatch: reference to %s:%s from %s "
+                warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
                      "before '%s' (at offset -0x%llx)\n",
-                     modname, secname, refsymname, fromsec,
-                     elf->strtab + after->st_name,
-                     (long long)r.r_offset);
+                     modname, fromsec, (unsigned long long)r.r_offset,
+                     secname, refsymname,
+                     elf->strtab + after->st_name);
         } else {
-                warn("%s - Section mismatch: reference to %s:%s from %s "
-                     "(offset 0x%llx)\n",
-                     modname, secname, fromsec, refsymname,
-                     (long long)r.r_offset);
+                warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s\n",
+                     modname, fromsec, (unsigned long long)r.r_offset,
+                     secname, refsymname);
         }
 }