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/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
#include <linux/cpumask.h>
#include <linux/ctype.h>
#include <linux/errno.h>
/*
* Allow cropping out bits beyond the end of the array.
* Move to "lib" directory if more clients want to use this routine.
*/
int bitmap_parselist_crop(const char *bp, unsigned long *maskp, int nmaskbits)
{
unsigned a, b;
bitmap_zero(maskp, nmaskbits);
do {
if (!isdigit(*bp))
return -EINVAL;
a = simple_strtoul(bp, (char **)&bp, 10);
b = a;
if (*bp == '-') {
bp++;
if (!isdigit(*bp))
return -EINVAL;
b = simple_strtoul(bp, (char **)&bp, 10);
}
if (!(a <= b))
return -EINVAL;
if (b >= nmaskbits)
b = nmaskbits-1;
while (a <= b) {
set_bit(a, maskp);
a++;
}
if (*bp == ',')
bp++;
} while (*bp != '\0' && *bp != '\n');
return 0;
}
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