[PATCHv2] mm: do not export const kfree and kstrdup variants

[Sergey Senozhatsky <senozhatsky@chromium.org>]

Both kfree_const() and kstrdup_const() use __start_rodata
and __end_rodata, which do not work for modules.  This is
especially important for kfree_const().  Stop exporting
these functions, as they cannot be used in the modules.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
 mm/util.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/util.c b/mm/util.c
index 4f1275023eb7..24dadbd5727a 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -42,7 +42,6 @@ void kfree_const(const void *x)
 	if (!is_kernel_rodata((unsigned long)x))
 		kfree(x);
 }
-EXPORT_SYMBOL(kfree_const);
 
 /**
  * kstrdup - allocate space for and copy an existing string
@@ -86,7 +85,6 @@ const char *kstrdup_const(const char *s, gfp_t gfp)
 
 	return kstrdup(s, gfp);
 }
-EXPORT_SYMBOL(kstrdup_const);
 
 /**
  * kstrndup - allocate space for and copy an existing string
-- 
2.46.0.792.g87dc391469-goog