include: move find.h from asm_generic to linux

find_bit API and bitmap API are closely related, but inclusion paths
are different - include/asm-generic and include/linux, correspondingly.
In the past it made a lot of troubles due to circular dependencies
and/or undefined symbols. Fix this by moving find.h under include/linux.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

MAINTAINERS

@@ -3359,8 +3359,8 @@ M:	Yury Norov <yury.norov@gmail.com>
 R:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 R:	Rasmus Villemoes <linux@rasmusvillemoes.dk>
 S:	Maintained
-F:	include/asm-generic/bitops/find.h
 F:	include/linux/bitmap.h
+F:	include/linux/find.h
 F:	lib/bitmap.c
 F:	lib/find_bit.c
 F:	lib/find_bit_benchmark.c

arch/alpha/include/asm/bitops.h

@@ -430,8 +430,6 @@ static inline unsigned int __arch_hweight8(unsigned int w)
 
 #endif /* __KERNEL__ */
 
-#include <asm-generic/bitops/find.h>
-
 #ifdef __KERNEL__
 
 /*

arch/arc/include/asm/bitops.h

@@ -189,7 +189,6 @@ static inline __attribute__ ((const)) unsigned long __ffs(unsigned long x)
 #include <asm-generic/bitops/atomic.h>
 #include <asm-generic/bitops/non-atomic.h>
 
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 

arch/arm/include/asm/bitops.h

@@ -264,7 +264,6 @@ static inline int find_next_bit_le(const void *p, int size, int offset)
 
 #endif
 
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/le.h>
 
 /*

arch/arm64/include/asm/bitops.h

@@ -18,7 +18,6 @@
 
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>

arch/csky/include/asm/bitops.h

@@ -59,7 +59,6 @@ static __always_inline unsigned long __fls(unsigned long x)
 
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
 
 #ifndef _LINUX_BITOPS_H
 #error only <linux/bitops.h> can be included directly

arch/h8300/include/asm/bitops.h

@@ -168,7 +168,6 @@ static inline unsigned long __ffs(unsigned long word)
 	return result;
 }
 
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>

arch/hexagon/include/asm/bitops.h

@@ -271,7 +271,6 @@ static inline unsigned long __fls(unsigned long word)
 }
 
 #include <asm-generic/bitops/lock.h>
-#include <asm-generic/bitops/find.h>
 
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>

arch/ia64/include/asm/bitops.h

@@ -441,8 +441,6 @@ static __inline__ unsigned long __arch_hweight64(unsigned long x)
 
 #endif /* __KERNEL__ */
 
-#include <asm-generic/bitops/find.h>
-
 #ifdef __KERNEL__
 
 #include <asm-generic/bitops/le.h>

arch/m68k/include/asm/bitops.h

@@ -529,6 +529,4 @@ static inline int __fls(int x)
 #include <asm-generic/bitops/le.h>
 #endif /* __KERNEL__ */
 
-#include <asm-generic/bitops/find.h>
-
 #endif /* _M68K_BITOPS_H */

arch/mips/include/asm/bitops.h

@@ -446,7 +446,6 @@ static inline int ffs(int word)
 }
 
 #include <asm-generic/bitops/ffz.h>
-#include <asm-generic/bitops/find.h>
 
 #ifdef __KERNEL__
 

arch/openrisc/include/asm/bitops.h

@@ -30,7 +30,6 @@
 #include <asm/bitops/fls.h>
 #include <asm/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
 
 #ifndef _LINUX_BITOPS_H
 #error only <linux/bitops.h> can be included directly

arch/parisc/include/asm/bitops.h

@@ -203,7 +203,6 @@ static __inline__ int fls(unsigned int x)
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 

arch/powerpc/include/asm/bitops.h

@@ -255,8 +255,6 @@ unsigned long __arch_hweight64(__u64 w);
 #include <asm-generic/bitops/hweight.h>
 #endif
 
-#include <asm-generic/bitops/find.h>
-
 /* wrappers that deal with KASAN instrumentation */
 #include <asm-generic/bitops/instrumented-atomic.h>
 #include <asm-generic/bitops/instrumented-lock.h>

arch/riscv/include/asm/bitops.h

@@ -20,7 +20,6 @@
 #include <asm-generic/bitops/fls.h>
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/ffs.h>
 

arch/s390/include/asm/bitops.h

@@ -387,7 +387,6 @@ static inline int fls(unsigned int word)
 #endif /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */
 
 #include <asm-generic/bitops/ffz.h>
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>

arch/sh/include/asm/bitops.h

@@ -68,6 +68,5 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 
 #include <asm-generic/bitops/le.h>
-#include <asm-generic/bitops/find.h>
 
 #endif /* __ASM_SH_BITOPS_H */

arch/sparc/include/asm/bitops_32.h

@@ -100,7 +100,6 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
 

arch/sparc/include/asm/bitops_64.h

@@ -52,8 +52,6 @@ unsigned int __arch_hweight8(unsigned int w);
 #include <asm-generic/bitops/lock.h>
 #endif /* __KERNEL__ */
 
-#include <asm-generic/bitops/find.h>
-
 #ifdef __KERNEL__
 
 #include <asm-generic/bitops/le.h>

arch/x86/include/asm/bitops.h

@@ -380,8 +380,6 @@ static __always_inline int fls64(__u64 x)
 #include <asm-generic/bitops/fls64.h>
 #endif
 
-#include <asm-generic/bitops/find.h>
-
 #include <asm-generic/bitops/sched.h>
 
 #include <asm/arch_hweight.h>

arch/xtensa/include/asm/bitops.h

@@ -205,7 +205,6 @@ BIT_OPS(change, "xor", )
 #undef BIT_OP
 #undef TEST_AND_BIT_OP
 
-#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/le.h>
 
 #include <asm-generic/bitops/ext2-atomic-setbit.h>

include/asm-generic/bitops.h

@@ -20,7 +20,6 @@
 #include <asm-generic/bitops/fls.h>
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
 
 #ifndef _LINUX_BITOPS_H
 #error only <linux/bitops.h> can be included directly

include/linux/bitmap.h

@@ -6,6 +6,7 @@
 
 #include <linux/align.h>
 #include <linux/bitops.h>
+#include <linux/find.h>
 #include <linux/limits.h>
 #include <linux/string.h>
 #include <linux/types.h>

include/linux/find.h

@@ -1,6 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_GENERIC_BITOPS_FIND_H_
+#ifndef __LINUX_FIND_H_
-#define _ASM_GENERIC_BITOPS_FIND_H_
+#define __LINUX_FIND_H_
+
+#ifndef __LINUX_BITMAP_H
+#error only <linux/bitmap.h> can be included directly
+#endif
+
+#include <linux/bitops.h>
 
 extern unsigned long _find_next_bit(const unsigned long *addr1,
 		const unsigned long *addr2, unsigned long nbits,
@@ -259,4 +265,4 @@ unsigned long find_next_bit_le(const void *addr, unsigned
 #error "Please fix <asm/byteorder.h>"
 #endif
 
-#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */
+#endif /*__LINUX_FIND_H_ */