Commit d9798aa6 authored Oct 08, 2014 by Tapasweni Pathak Committed by Greg Kroah-Hartman Oct 20, 2014

staging: comedi: drivers: Use DIV_ROUND_CLOSEST



The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

The Coccinelle script used:
// <smpl>
@haskernel@
@@
@depends on haskernel@
expression x,__divisor;
@@
- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent dea7503a

drivers/staging/comedi/drivers/s626.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1970,7 +1970,7 @@ static int s626_ns_to_timer(unsigned int *nanosec, unsigned int flags)
		switch (flags & CMDF_ROUND_MASK) {
		case CMDF_ROUND_NEAREST:
		default:
		divider = (*nanosec + base / 2) / base;
		divider = DIV_ROUND_CLOSEST(*nanosec, base);
		break;
		case CMDF_ROUND_DOWN:
		divider = (*nanosec) / base;