BITMAP_FROM_U32ARRAY(9)           Basic Kernel Library Functions          BITMAP_FROM_U32ARRAY(9)



NAME
       bitmap_from_u32array - copy the contents of a u32 array of bits to bitmap

SYNOPSIS
       unsigned int bitmap_from_u32array(unsigned long * bitmap, unsigned int nbits,
                                         const u32 * buf, unsigned int nwords);

ARGUMENTS
       bitmap
           array of unsigned longs, the destination bitmap, non NULL

       nbits
           number of bits in bitmap

       buf
           array of u32 (in host byte order), the source bitmap, non NULL

       nwords
           number of u32 words in buf

DESCRIPTION
       copy min(nbits, 32*nwords) bits from buf to bitmap, remaining bits between nword and nbits
       in bitmap (if any) are cleared. In last word of bitmap, the bits beyond nbits (if any) are
       kept unchanged.

       Return the number of bits effectively copied.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   BITMAP_FROM_U32ARRAY(9)