From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Wed, 13 Sep 2017 10:16:44 +0000 (+0900)
Subject: linux/kernel.h: import DIV_ROUND_{DOWN, UP}_ULL from Linux
X-Git-Tag: v2017.11-rc2~127
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=84570a0c111ac50372d51271eadc13ff5cbb1a54;p=oweals%2Fu-boot.git

linux/kernel.h: import DIV_ROUND_{DOWN, UP}_ULL from Linux

These macros are useful to avoid link error on 32-bit systems.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 0b616713cc..87d2d9554d 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -57,6 +57,11 @@
 #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