mtd: sf: Make sf_mtd.c more robust

[platform/kernel/u-boot.git] / include / linux / kernel.h

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 0b61671..04a09eb 100644 (file)
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -38,6 +38,7 @@
 #define REPEAT_BYTE(x) ((~0ul / 0xff) * (x))
 
 #define ALIGN(x,a)             __ALIGN_MASK((x),(typeof(x))(a)-1)
+#define ALIGN_DOWN(x, a)       ALIGN((x) - ((a) - 1), (a))
 #define __ALIGN_MASK(x,mask)   (((x)+(mask))&~(mask))
 #define PTR_ALIGN(p, a)                ((typeof(p))ALIGN((unsigned long)(p), (a)))
 #define IS_ALIGNED(x, a)               (((x) & ((typeof(x))(a) - 1)) == 0)
@@ -57,6 +58,11 @@
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+       ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+
+#define DIV_ROUND_UP_ULL(ll, d)                DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d))
+
 #if BITS_PER_LONG == 32
 # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
 #else