diff options
author | Jiri Kosina <jkosina@suse.cz> | 2010-08-10 13:22:08 +0200 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2010-08-10 13:22:08 +0200 |
commit | fb8231a8b139035476f2a8aaac837d0099b66dad (patch) | |
tree | 2875806beb96ea0cdab292146767a5085721dc6a /arch/tile/lib/cpumask.c | |
parent | 426d31071ac476ea62c62656b242930c17b58c00 (diff) | |
parent | f6cec0ae58c17522a7bc4e2f39dae19f199ab534 (diff) |
Merge branch 'master' into for-next
Conflicts:
arch/arm/mach-omap1/board-nokia770.c
Diffstat (limited to 'arch/tile/lib/cpumask.c')
-rw-r--r-- | arch/tile/lib/cpumask.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/tile/lib/cpumask.c b/arch/tile/lib/cpumask.c new file mode 100644 index 00000000000..fdc403614d1 --- /dev/null +++ b/arch/tile/lib/cpumask.c @@ -0,0 +1,52 @@ +/* + * 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> +#include <linux/smp.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; +} |