4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthias Kaehlcke <m...@chromium.org>

commit 3eb95feac113d8ebad5b7b5189a65efcbd95a749 upstream.

zs_stat_inc/dec/get() uses enum zs_stat_type for the stat type, however
some callers pass an enum fullness_group value.  Change the type to int to
reflect the actual use of the functions and get rid of 'enum-conversion'
warnings

Link: http://lkml.kernel.org/r/20170731175000.56538-1-...@chromium.org
Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com>
Acked-by: Minchan Kim <minc...@kernel.org>
Cc: Doug Anderson <diand...@chromium.org>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Nathan Chancellor <natechancel...@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 mm/zsmalloc.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -558,20 +558,23 @@ static int get_size_class_index(int size
        return min(zs_size_classes - 1, idx);
 }
 
+/* type can be of enum type zs_stat_type or fullness_group */
 static inline void zs_stat_inc(struct size_class *class,
-                               enum zs_stat_type type, unsigned long cnt)
+                               int type, unsigned long cnt)
 {
        class->stats.objs[type] += cnt;
 }
 
+/* type can be of enum type zs_stat_type or fullness_group */
 static inline void zs_stat_dec(struct size_class *class,
-                               enum zs_stat_type type, unsigned long cnt)
+                               int type, unsigned long cnt)
 {
        class->stats.objs[type] -= cnt;
 }
 
+/* type can be of enum type zs_stat_type or fullness_group */
 static inline unsigned long zs_stat_get(struct size_class *class,
-                               enum zs_stat_type type)
+                               int type)
 {
        return class->stats.objs[type];
 }


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