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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
commit863981e96738983919de841ec669e157e6bdaeb0 (patch)
treed6d89a12e7eb8017837c057935a2271290907f76 /include/linux/mtd/map.h
parent8dec7c70575785729a6a9e6719a955e9c545bcab (diff)
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'include/linux/mtd/map.h')
-rw-r--r--include/linux/mtd/map.h19
1 files changed, 7 insertions, 12 deletions
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 5e0eb7cca..3aa56e310 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -122,18 +122,13 @@
#endif
#ifdef CONFIG_MTD_MAP_BANK_WIDTH_32
-# ifdef map_bankwidth
-# undef map_bankwidth
-# define map_bankwidth(map) ((map)->bankwidth)
-# undef map_bankwidth_is_large
-# define map_bankwidth_is_large(map) (map_bankwidth(map) > BITS_PER_LONG/8)
-# undef map_words
-# define map_words(map) map_calc_words(map)
-# else
-# define map_bankwidth(map) 32
-# define map_bankwidth_is_large(map) (1)
-# define map_words(map) map_calc_words(map)
-# endif
+/* always use indirect access for 256-bit to preserve kernel stack */
+# undef map_bankwidth
+# define map_bankwidth(map) ((map)->bankwidth)
+# undef map_bankwidth_is_large
+# define map_bankwidth_is_large(map) (map_bankwidth(map) > BITS_PER_LONG/8)
+# undef map_words
+# define map_words(map) map_calc_words(map)
#define map_bankwidth_is_32(map) (map_bankwidth(map) == 32)
#undef MAX_MAP_BANKWIDTH
#define MAX_MAP_BANKWIDTH 32