The comment above do_div() makes it look like the first argument is
supposed to be a pointer to the dividend, so add a note to explain
further.
Signed-off-by: Gregory Fong <[email protected]>
---
arch/arm/include/asm/div64.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/include/asm/div64.h b/arch/arm/include/asm/div64.h
index 662c7bd..993489f 100644
--- a/arch/arm/include/asm/div64.h
+++ b/arch/arm/include/asm/div64.h
@@ -14,6 +14,9 @@
* return remainder;
* }
*
+ * Note that "*n" does not mean the first argument should be a
+ * pointer, but rather indicates that the value is modified in-place.
+ *
* In other words, a 64-bit dividend with a 32-bit divisor producing
* a 64-bit result and a 32-bit remainder. To accomplish this optimally
* we call a special __do_div64 helper with completely non standard
--
1.9.1