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.