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Message-Id: <1414459770-31592-1-git-send-email-gregory.0xf0@gmail.com> Date: Mon, 27 Oct 2014 18:29:30 -0700 From: Gregory Fong <gregory.0xf0@...il.com> To: Russell King <linux@....linux.org.uk> Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Gregory Fong <gregory.0xf0@...il.com> Subject: [PATCH] ARM: Clarify do_div() usage 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 <gregory.0xf0@...il.com> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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