Ping?
On Wed, Apr 11, 2018 at 05:59:14PM +0300, Yury Norov wrote: > Use BITS_TO_LONGS() macro to avoid calculation of reminder > (bits % BITS_PER_LONG) On ARM64 it saves 5 instruction for function - > 16 before and 11 after. > > Signed-off-by: Yury Norov <[email protected]> > --- > lib/bitmap.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/lib/bitmap.c b/lib/bitmap.c > index c82c61b66e16..7adc10074cff 100644 > --- a/lib/bitmap.c > +++ b/lib/bitmap.c > @@ -62,12 +62,9 @@ EXPORT_SYMBOL(__bitmap_equal); > > void __bitmap_complement(unsigned long *dst, const unsigned long *src, > unsigned int bits) > { > - unsigned int k, lim = bits/BITS_PER_LONG; > + unsigned int k, lim = BITS_TO_LONGS(bits); > for (k = 0; k < lim; ++k) > dst[k] = ~src[k]; > - > - if (bits % BITS_PER_LONG) > - dst[k] = ~src[k]; > } > EXPORT_SYMBOL(__bitmap_complement); > > -- > 2.14.1
