All of lore.kernel.org
 help / color / mirror / Atom feed
From: Stefan Assmann <sassmann@kpanic.de>
To: mcgrof@kernel.org
Cc: backports@vger.kernel.org, hauke@hauke-m.de, sassmann@kpanic.de
Subject: [PATCH] backports: remove obsolete linux/bitops.h header
Date: Mon, 18 Nov 2013 15:26:43 +0100	[thread overview]
Message-ID: <1384784803-16935-1-git-send-email-sassmann@kpanic.de> (raw)

The header seems to be obsolete. Removing it and running devel/ckmake didn't
reveal any errors. Missing parts can always be re-added in the new
include_next fashion if necessary.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
---
 backport/backport-include/linux/bitops.h | 211 -------------------------------
 1 file changed, 211 deletions(-)
 delete mode 100644 backport/backport-include/linux/bitops.h

diff --git a/backport/backport-include/linux/bitops.h b/backport/backport-include/linux/bitops.h
deleted file mode 100644
index aa76af1..0000000
--- a/backport/backport-include/linux/bitops.h
+++ /dev/null
@@ -1,211 +0,0 @@
-#ifndef _LINUX_BITOPS_H
-#define _LINUX_BITOPS_H
-#include <asm/types.h>
-
-#ifdef	__KERNEL__
-#define BIT(nr)			(1UL << (nr))
-#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
-#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
-#define BITS_PER_BYTE		8
-#ifndef BITS_TO_LONGS /* Older kernels define this already */
-#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
-#endif
-#endif
-
-extern unsigned int __sw_hweight8(unsigned int w);
-extern unsigned int __sw_hweight16(unsigned int w);
-extern unsigned int __sw_hweight32(unsigned int w);
-extern unsigned long __sw_hweight64(__u64 w);
-
-/*
- * Include this here because some architectures need generic_ffs/fls in
- * scope
- */
-#include <asm/bitops.h>
-
-#define for_each_set_bit(bit, addr, size) \
-	for ((bit) = find_first_bit((addr), (size)); \
-	     (bit) < (size); \
-	     (bit) = find_next_bit((addr), (size), (bit) + 1))
-
-static __inline__ int get_bitmask_order(unsigned int count)
-{
-	int order;
-
-	order = fls(count);
-	return order;	/* We could be slightly more clever with -1 here... */
-}
-
-static __inline__ int get_count_order(unsigned int count)
-{
-	int order;
-
-	order = fls(count) - 1;
-	if (count & (count - 1))
-		order++;
-	return order;
-}
-
-static inline unsigned long hweight_long(unsigned long w)
-{
-	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
-}
-
-/**
- * rol32 - rotate a 32-bit value left
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u32 rol32(__u32 word, unsigned int shift)
-{
-	return (word << shift) | (word >> (32 - shift));
-}
-
-/**
- * ror32 - rotate a 32-bit value right
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u32 ror32(__u32 word, unsigned int shift)
-{
-	return (word >> shift) | (word << (32 - shift));
-}
-
-/**
- * rol16 - rotate a 16-bit value left
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u16 rol16(__u16 word, unsigned int shift)
-{
-	return (word << shift) | (word >> (16 - shift));
-}
-
-/**
- * ror16 - rotate a 16-bit value right
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u16 ror16(__u16 word, unsigned int shift)
-{
-	return (word >> shift) | (word << (16 - shift));
-}
-
-/**
- * rol8 - rotate an 8-bit value left
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u8 rol8(__u8 word, unsigned int shift)
-{
-	return (word << shift) | (word >> (8 - shift));
-}
-
-/**
- * ror8 - rotate an 8-bit value right
- * @word: value to rotate
- * @shift: bits to roll
- */
-static inline __u8 ror8(__u8 word, unsigned int shift)
-{
-	return (word >> shift) | (word << (8 - shift));
-}
-
-/**
- * sign_extend32 - sign extend a 32-bit value using specified bit as sign-bit
- * @value: value to sign extend
- * @index: 0 based bit index (0<=index<32) to sign bit
- */
-static inline __s32 sign_extend32(__u32 value, int index)
-{
-	__u8 shift = 31 - index;
-	return (__s32)(value << shift) >> shift;
-}
-
-static inline unsigned fls_long(unsigned long l)
-{
-	if (sizeof(l) == 4)
-		return fls(l);
-	return fls64(l);
-}
-
-/**
- * __ffs64 - find first set bit in a 64 bit word
- * @word: The 64 bit word
- *
- * On 64 bit arches this is a synomyn for __ffs
- * The result is not defined if no bits are set, so check that @word
- * is non-zero before calling this.
- */
-static inline unsigned long __ffs64(u64 word)
-{
-#if BITS_PER_LONG == 32
-	if (((u32)word) == 0UL)
-		return __ffs((u32)(word >> 32)) + 32;
-#elif BITS_PER_LONG != 64
-#error BITS_PER_LONG not 32 or 64
-#endif
-	return __ffs((unsigned long)word);
-}
-
-#ifdef __KERNEL__
-#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
-
-/**
- * find_first_bit - find the first set bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit number of the first set bit.
- */
-extern unsigned long find_first_bit(const unsigned long *addr,
-				    unsigned long size);
-
-/**
- * find_first_zero_bit - find the first cleared bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit number of the first cleared bit.
- */
-extern unsigned long find_first_zero_bit(const unsigned long *addr,
-					 unsigned long size);
-#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
-
-#ifdef CONFIG_GENERIC_FIND_LAST_BIT
-/**
- * find_last_bit - find the last set bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit number of the first set bit, or size.
- */
-extern unsigned long find_last_bit(const unsigned long *addr,
-				   unsigned long size);
-#endif /* CONFIG_GENERIC_FIND_LAST_BIT */
-
-#ifdef CONFIG_GENERIC_FIND_NEXT_BIT
-
-/**
- * find_next_bit - find the next set bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The bitmap size in bits
- */
-extern unsigned long find_next_bit(const unsigned long *addr,
-				   unsigned long size, unsigned long offset);
-
-/**
- * find_next_zero_bit - find the next cleared bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The bitmap size in bits
- */
-
-extern unsigned long find_next_zero_bit(const unsigned long *addr,
-					unsigned long size,
-					unsigned long offset);
-
-#endif /* CONFIG_GENERIC_FIND_NEXT_BIT */
-#endif /* __KERNEL__ */
-#endif
-- 
1.8.3.1


             reply	other threads:[~2013-11-18 14:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-18 14:26 Stefan Assmann [this message]
2013-11-19 22:51 ` [PATCH] backports: remove obsolete linux/bitops.h header Hauke Mehrtens
2013-11-20  8:20   ` Johannes Berg
2013-11-20  8:29   ` Stefan Assmann
2013-11-20  8:36     ` Johannes Berg
2013-11-20 11:26       ` Stefan Assmann
2013-11-20 11:36         ` Hauke Mehrtens

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1384784803-16935-1-git-send-email-sassmann@kpanic.de \
    --to=sassmann@kpanic.de \
    --cc=backports@vger.kernel.org \
    --cc=hauke@hauke-m.de \
    --cc=mcgrof@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.