cregit-Linux how code gets into the kernel

Release 4.14 arch/sparc/include/asm/bitops_32.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * bitops.h: Bit string operations on the Sparc.
 *
 * Copyright 1995 David S. Miller (davem@caip.rutgers.edu)
 * Copyright 1996 Eddie C. Dost   (ecd@skynet.be)
 * Copyright 2001 Anton Blanchard (anton@samba.org)
 */

#ifndef _SPARC_BITOPS_H

#define _SPARC_BITOPS_H

#include <linux/compiler.h>
#include <asm/byteorder.h>

#ifdef __KERNEL__

#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif

unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
unsigned long ___change_bit(unsigned long *addr, unsigned long mask);

/*
 * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0'
 * is in the highest of the four bytes and bit '31' is the high bit
 * within the first byte. Sparc is BIG-Endian. Unless noted otherwise
 * all bit-ops return 0 if bit was previously clear and != 0 otherwise.
 */

static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); return ___set_bit(ADDR, mask) != 0; }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%


static inline void set_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); (void) ___set_bit(ADDR, mask); }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%


static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); return ___clear_bit(ADDR, mask) != 0; }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%


static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); (void) ___clear_bit(ADDR, mask); }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%


static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); return ___change_bit(ADDR, mask) != 0; }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%


static inline void change_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *ADDR, mask; ADDR = ((unsigned long *) addr) + (nr >> 5); mask = 1 << (nr & 31); (void) ___change_bit(ADDR, mask); }

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Sam Ravnborg61100.00%1100.00%
Total61100.00%1100.00%

#include <asm-generic/bitops/non-atomic.h> #include <asm-generic/bitops/ffz.h> #include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/ffs.h> #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/__fls.h> #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> #endif /* __KERNEL__ */ #endif /* defined(_SPARC_BITOPS_H) */

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Sam Ravnborg47298.54%125.00%
Rusty Russell30.63%125.00%
Akinobu Mita30.63%125.00%
Greg Kroah-Hartman10.21%125.00%
Total479100.00%4100.00%
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