__bitmap_parse - convert an ASCII hex string into a bitmap.
"int __bitmap_parse(const char * " "buf" ", unsigned int " "buflen" ", int " "is_user" ", unsigned long * " "maskp" ", int " "nmaskbits" ");"
buf
pointer to buffer containing string.buflenbuffer size in bytes. If string is smaller than this then it must be terminated with a \0.is_user
location of buffer, 0 indicates kernel spacemaskppointer to bitmap array that will contain result. nmaskbits size of bitmap, in bits.
Commas group hex digits into chunks. Each chunk defines exactly 32 bits of the resultant bitmask. No chunk may specify a value larger than 32 bits (-EOVERFLOW), and if a chunk specifies a smaller value then leading 0-bits are prepended. -EINVALfR
is returned for illegal characters and for grouping errors such as (lq1,,5(rq, (lq,44(rq, (lq,(rq and "". Leading and trailing whitespace accepted, but not embedded whitespace.
