Re: [PATCH] bitops: move BITS() macro to the bitops file

From: Borislav Petkov
Date: Wed Aug 07 2013 - 06:54:15 EST

On Wed, Aug 07, 2013 at 11:06:19AM +0200, Linus Walleij wrote:
> This macro was invented by Mattias Nilsson for the usecase
> where you want to set a sequence of bits inside a n-bit
> word, while leaving the head and tail of the sequence all
> zeroes. For example:
> #include <linux/bitops.h>
> u16 mask = BITS(4, 12);
> Yields a mask like this:
> 0001111111110000
> This patch moves the construct out of the MFD PRCMU driver
> and make it available for common use, after noticing in a
> review or two that it would be useful for others.

Well, we have similar GEN_MASK and GENMASK macros around the tree. Maybe
we could unify them all?


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