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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-17 11:29:26 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-19 13:01:43 -0300 |
| commit | 8607c1ee734d12f62c6a46abef13a510e25a1839 (patch) | |
| tree | 0e860bf17795004b3d609085a10f9beffd7dd595 /tools/include | |
| parent | tools include: Adopt __same_type() and __must_be_array() from the kernel (diff) | |
| download | wireguard-linux-8607c1ee734d12f62c6a46abef13a510e25a1839.tar.xz wireguard-linux-8607c1ee734d12f62c6a46abef13a510e25a1839.zip | |
tools include: Move ARRAY_SIZE() to linux/kernel.h
To match the kernel, then look for places redefining it to make it use
this version, which checks that its parameter is an array at build time.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-txlcf1im83bcbj6kh0wxmyy8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/linux/kernel.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h index adb4d0147755..73ccc48126bb 100644 --- a/tools/include/linux/kernel.h +++ b/tools/include/linux/kernel.h @@ -4,6 +4,7 @@ #include <stdarg.h> #include <stddef.h> #include <assert.h> +#include <linux/compiler.h> #ifndef UINT_MAX #define UINT_MAX (~0U) @@ -76,6 +77,8 @@ int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); int scnprintf(char * buf, size_t size, const char * fmt, ...); +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) + /* * This looks more complex than it should be. But we need to * get the type for the ~ right in round_down (it needs to be |