lib/math: Move dvb_math.c into lib/math/int_log.c

Some existing and new users may benefit from the intlog2() and
intlog10() APIs, make them wide available.

Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/20230619172019.21457-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230703135211.87416-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 0 insertions, 66 deletions

diff --git a/include/media/dvb_math.h b/include/media/dvb_math.h
deleted file mode 100644
index 8690ec42954d..000000000000
--- a/include/media/dvb_math.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * dvb-math provides some complex fixed-point math
- * operations shared between the dvb related stuff
- *
- * Copyright (C) 2006 Christoph Pfister (christophpfister@gmail.com)
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- */
-
-#ifndef __DVB_MATH_H
-#define __DVB_MATH_H
-
-#include <linux/types.h>
-
-/**
- * intlog2 - computes log2 of a value; the result is shifted left by 24 bits
- *
- * @value: The value (must be != 0)
- *
- * to use rational values you can use the following method:
- *
- *   intlog2(value) = intlog2(value * 2^x) - x * 2^24
- *
- * Some usecase examples:
- *
- *	intlog2(8) will give 3 << 24 = 3 * 2^24
- *
- *	intlog2(9) will give 3 << 24 + ... = 3.16... * 2^24
- *
- *	intlog2(1.5) = intlog2(3) - 2^24 = 0.584... * 2^24
- *
- *
- * return: log2(value) * 2^24
- */
-extern unsigned int intlog2(u32 value);
-
-/**
- * intlog10 - computes log10 of a value; the result is shifted left by 24 bits
- *
- * @value: The value (must be != 0)
- *
- * to use rational values you can use the following method:
- *
- *   intlog10(value) = intlog10(value * 10^x) - x * 2^24
- *
- * An usecase example:
- *
- *	intlog10(1000) will give 3 << 24 = 3 * 2^24
- *
- *   due to the implementation intlog10(1000) might be not exactly 3 * 2^24
- *
- * look at intlog2 for similar examples
- *
- * return: log10(value) * 2^24
- */
-extern unsigned int intlog10(u32 value);
-
-#endif