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-rw-r--r--lib/div64.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/lib/div64.c b/lib/div64.c
index b71cf93c529a..689bd76833fa 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -16,9 +16,8 @@
* assembly versions such as arch/ppc/lib/div64.S and arch/sh/lib/div64.S.
*/
-#include <linux/types.h>
#include <linux/module.h>
-#include <asm/div64.h>
+#include <linux/math64.h>
/* Not needed on 64bit architectures */
#if BITS_PER_LONG == 32
@@ -58,6 +57,26 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
EXPORT_SYMBOL(__div64_32);
+#ifndef div_s64_rem
+s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
+{
+ u64 quotient;
+
+ if (dividend < 0) {
+ quotient = div_u64_rem(-dividend, abs(divisor), (u32 *)remainder);
+ *remainder = -*remainder;
+ if (divisor > 0)
+ quotient = -quotient;
+ } else {
+ quotient = div_u64_rem(dividend, abs(divisor), (u32 *)remainder);
+ if (divisor < 0)
+ quotient = -quotient;
+ }
+ return quotient;
+}
+EXPORT_SYMBOL(div_s64_rem);
+#endif
+
/* 64bit divisor, dividend and result. dynamic precision */
uint64_t div64_64(uint64_t dividend, uint64_t divisor)
{