bitmap_parse_user — convert an ASCII hex string in a user buffer into a bitmap
int bitmap_parse_user ( | const char __user * ubuf, |
unsigned int ulen, | |
unsigned long * maskp, | |
int nmaskbits) ; |
const char __user * ubuf
pointer to user buffer containing string.
unsigned int ulen
buffer size in bytes. If string is smaller than this then it must be terminated with a \0.
unsigned long * maskp
pointer to bitmap array that will contain result.
int nmaskbits
size of bitmap, in bits.
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.