projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 867e359b CM |
1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License | |
| 6 | * as published by the Free Software Foundation, version 2. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but | |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/cpumask.h> | |
| 16 | #include <linux/ctype.h> | |
| 17 | #include <linux/errno.h> | |
| 0707ad30 | 18 | #include <linux/smp.h> |
| 7c63e1ee | 19 | #include <linux/export.h> |
| 867e359b CM |
20 | |
| 21 | /* | |
| 22 | * Allow cropping out bits beyond the end of the array. | |
| 23 | * Move to "lib" directory if more clients want to use this routine. | |
| 24 | */ | |
| 25 | int bitmap_parselist_crop(const char *bp, unsigned long *maskp, int nmaskbits) | |
| 26 | { | |
| 27 | unsigned a, b; | |
| 28 | ||
| 29 | bitmap_zero(maskp, nmaskbits); | |
| 30 | do { | |
| 31 | if (!isdigit(*bp)) | |
| 32 | return -EINVAL; | |
| 33 | a = simple_strtoul(bp, (char **)&bp, 10); | |
| 34 | b = a; | |
| 35 | if (*bp == '-') { | |
| 36 | bp++; | |
| 37 | if (!isdigit(*bp)) | |
| 38 | return -EINVAL; | |
| 39 | b = simple_strtoul(bp, (char **)&bp, 10); | |
| 40 | } | |
| 41 | if (!(a <= b)) | |
| 42 | return -EINVAL; | |
| 43 | if (b >= nmaskbits) | |
| 44 | b = nmaskbits-1; | |
| 45 | while (a <= b) { | |
| 46 | set_bit(a, maskp); | |
| 47 | a++; | |
| 48 | } | |
| 49 | if (*bp == ',') | |
| 50 | bp++; | |
| 51 | } while (*bp != '\0' && *bp != '\n'); | |
| 52 | return 0; | |
| 53 | } | |
| 7c63e1ee | 54 | EXPORT_SYMBOL(bitmap_parselist_crop); |