Commit e7a7a65e authored Nov 11, 2014 by Boqun Feng Committed by Michael Ellerman Nov 12, 2014

powerpc: Fix comment typos in arch/powerpc/include/asm/bitops.h



In arch/powerpc/include/asm/bitops.h, the comments about bit numbers in
large (> 1 word) bitmaps have two typos:
- On ppc64 system, the LSB of the 4th word should be bit 192 rather than
  196, because if it's bit 196, bit 192-195 will be missing in the
  bitmap.
- On ppc32 system, the LSB of the second word should be bit 32 rather
  than 31, because bit 31 is already in the first word.

This patch fixes these typos.

Signed-off-by: Boqun Feng <boqun.feng@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 7048c846

arch/powerpc/include/asm/bitops.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -14,9 +14,9 @@
		*
		* The bitop functions are defined to work on unsigned longs, so for a
		* ppc64 system the bits end up numbered:
		* \|63..............0\|127............64\|191...........128\|255...........196\|
		* \|63..............0\|127............64\|191...........128\|255...........192\|
		* and on ppc32:
		* \|31.....0\|63....31\|95....64\|127...96\|159..128\|191..160\|223..192\|255..224\|
		* \|31.....0\|63....32\|95....64\|127...96\|159..128\|191..160\|223..192\|255..224\|
		*
		* There are a few little-endian macros used mostly for filesystem
		* bitmaps, these work on similar bit arrays layouts, but