[PATCH] /proc/kallsyms reports lower-case types for some non-exported symbols

This patch addresses incorrect symbol type information reported through
/proc/kallsyms.  A lowercase character should designate the symbol as local
(or non-exported).  An uppercase character should designate the symbol as
global (or external).

Without this patch, some non-exported symbols are incorrectly assigned an
upper-case designation in /proc/kallsyms.  This patch corrects this
condition by converting non-exported symbols types to lower case when
appropriate and eliminates the superfluous upcase_if_global function

Signed-off-by: Adam B. Jerome <abj@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 8 deletions

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index eeac3e313b2b..54befe36ee0b 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -20,6 +20,7 @@
 #include <linux/proc_fs.h>
 #include <linux/sched.h>        /* for cond_resched */
 #include <linux/mm.h>
+#include <linux/ctype.h>
 
 #include <asm/sections.h>
 
@@ -301,13 +302,6 @@ struct kallsym_iter
         char name[KSYM_NAME_LEN+1];
 };
 
-/* Only label it "global" if it is exported. */
-static void upcase_if_global(struct kallsym_iter *iter)
-{
-        if (is_exported(iter->name, iter->owner))
-                iter->type += 'A' - 'a';
-}
-
 static int get_ksymbol_mod(struct kallsym_iter *iter)
 {
         iter->owner = module_get_kallsym(iter->pos - kallsyms_num_syms,
@@ -316,7 +310,10 @@ static int get_ksymbol_mod(struct kallsym_iter *iter)
         if (iter->owner == NULL)
                 return 0;
 
-        upcase_if_global(iter);
+        /* Label it "global" if it is exported, "local" if not exported. */
+        iter->type = is_exported(iter->name, iter->owner)
+                ? toupper(iter->type) : tolower(iter->type);
+
         return 1;
 }