Commit 97996da1 authored Oct 08, 2014 by Tapasweni Pathak Committed by Greg Kroah-Hartman Oct 20, 2014

staging: comedi: drivers: use DIV_ROUND_UP



The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.

Coccinelle script used :

// <smpl>
@haskernel@
@@
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>

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

parent 583bea6c

drivers/staging/comedi/drivers/s626.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1976,7 +1976,7 @@ static int s626_ns_to_timer(unsigned int *nanosec, unsigned int flags)
	divider = (*nanosec) / base;		divider = (*nanosec) / base;
	break;		break;
	case CMDF_ROUND_UP:		case CMDF_ROUND_UP:
	divider = (*nanosec + base - 1) / base;		divider = DIV_ROUND_UP(*nanosec, base);
	break;		break;
	}		}