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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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066b34aa54
tools/include/linux/kernel.h and kselftest_harness.h are missing ifndef guard around ARRAY_SIZE define. Fix them to avoid duplicate define errors during compile when another file defines it. This problem was found when compiling selftests that include a header with ARRAY_SIZE define. ARRAY_SIZE is defined in several selftests. There are about 25+ duplicate defines in various selftests source and header files. Add ARRAY_SIZE to kselftest.h in preparation for removing duplicate ARRAY_SIZE defines from individual test files. Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __TOOLS_LINUX_KERNEL_H
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#define __TOOLS_LINUX_KERNEL_H
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#include <stdarg.h>
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#include <stddef.h>
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#include <assert.h>
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#include <linux/build_bug.h>
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#include <linux/compiler.h>
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#include <linux/math.h>
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#include <endian.h>
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#include <byteswap.h>
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#ifndef UINT_MAX
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#define UINT_MAX (~0U)
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#endif
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#define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
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#define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
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#ifndef offsetof
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#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#endif
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#ifndef container_of
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/**
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* container_of - cast a member of a structure out to the containing structure
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* @ptr: the pointer to the member.
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* @type: the type of the container struct this is embedded in.
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* @member: the name of the member within the struct.
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*
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*/
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#define container_of(ptr, type, member) ({ \
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const typeof(((type *)0)->member) * __mptr = (ptr); \
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(type *)((char *)__mptr - offsetof(type, member)); })
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#endif
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#ifndef max
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#define max(x, y) ({ \
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typeof(x) _max1 = (x); \
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typeof(y) _max2 = (y); \
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(void) (&_max1 == &_max2); \
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_max1 > _max2 ? _max1 : _max2; })
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#endif
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#ifndef min
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#define min(x, y) ({ \
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typeof(x) _min1 = (x); \
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typeof(y) _min2 = (y); \
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(void) (&_min1 == &_min2); \
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_min1 < _min2 ? _min1 : _min2; })
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#endif
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#ifndef BUG_ON
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#ifdef NDEBUG
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#define BUG_ON(cond) do { if (cond) {} } while (0)
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#else
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#define BUG_ON(cond) assert(!(cond))
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#endif
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#endif
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#define BUG() BUG_ON(1)
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define cpu_to_le16 bswap_16
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#define cpu_to_le32 bswap_32
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#define cpu_to_le64 bswap_64
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#define le16_to_cpu bswap_16
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#define le32_to_cpu bswap_32
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#define le64_to_cpu bswap_64
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#define cpu_to_be16
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#define cpu_to_be32
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#define cpu_to_be64
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#define be16_to_cpu
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#define be32_to_cpu
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#define be64_to_cpu
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#else
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#define cpu_to_le16
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#define cpu_to_le32
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#define cpu_to_le64
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#define le16_to_cpu
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#define le32_to_cpu
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#define le64_to_cpu
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#define cpu_to_be16 bswap_16
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#define cpu_to_be32 bswap_32
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#define cpu_to_be64 bswap_64
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#define be16_to_cpu bswap_16
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#define be32_to_cpu bswap_32
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#define be64_to_cpu bswap_64
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#endif
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int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
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int scnprintf(char * buf, size_t size, const char * fmt, ...);
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int scnprintf_pad(char * buf, size_t size, const char * fmt, ...);
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
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#endif
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#define current_gfp_context(k) 0
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#define synchronize_rcu()
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#endif
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