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kernel.h: split out mathematical helpers

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kernel.h is being used as a dump for all kinds of stuff for a long time.
Here is the attempt to start cleaning it up by splitting out
mathematical helpers.

At the same time convert users in header and lib folder to use new
header.  Though for time being include new header back to kernel.h to
avoid twisted indirected includes for existing users.

[sfr@canb.auug.org.au: fix powerpc build]
  Link: https://lkml.kernel.org/r/20201029150809.13059608@canb.auug.org.au

Link: https://lkml.kernel.org/r/20201028173212.41768-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko
2020-12-15 20:42:48 -08:00
committed by Linus Torvalds
parent 0a571b085f
commit aa6159ab99
15 changed files with 215 additions and 183 deletions
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4
lib/math/div64.c
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@@ -18,9 +18,11 @@
* or by defining a preprocessor macro in arch/include/asm/div64.h.
*/
#include <linux/bitops.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/math.h>
#include <linux/math64.h>
#include <linux/log2.h>
/* Not needed on 64bit architectures */
#if BITS_PER_LONG == 32