Name
bitmap_parse_user —
convert an ASCII hex string in a user buffer into a bitmap
Synopsis
int bitmap_parse_user ( | const char __user * ubuf, |
| | unsigned int ulen, |
| | unsigned long * maskp, |
| | int nmaskbits); |
Arguments
ubuf
pointer to user buffer containing string.
ulen
buffer size in bytes. If string is smaller than this
then it must be terminated with a \0.
maskp
pointer to bitmap array that will contain result.
nmaskbits
size of bitmap, in bits.
Description
Wrapper for __bitmap_parse, providing it with user buffer.
We cannot have this as an inline function in bitmap.h because it needs
linux/uaccess.h to get the access_ok declaration and this causes
cyclic dependencies.