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| author | Alejandro Colomar <alx@kernel.org> | 2023-10-03 14:59:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-01 13:41:47 +0300 |
| commit | 57752d523a3ff0a433bc3f2bc04d494eff070d0c (patch) | |
| tree | 9bd38f570e853e2c8f426c905906a3d649fca71e /include/linux/array_size.h | |
| parent | 9bbb4afff974d663d9e595ae82425fb7257794ea (diff) | |
| download | linux-57752d523a3ff0a433bc3f2bc04d494eff070d0c.tar.xz | |
kernel.h: Move ARRAY_SIZE() to a separate header
[ Upstream commit 3cd39bc3b11b8d34b7d7c961a35fdfd18b0ebf75 ]
Touching files so used for the kernel,
forces 'make' to recompile most of the kernel.
Having those definitions in more granular files
helps avoid recompiling so much of the kernel.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230817143352.132583-2-lucas.segarra.fernandez@intel.com
[andy: reduced to cover only string.h for now]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Stable-dep-of: 896f1a2493b5 ("net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/array_size.h')
| -rw-r--r-- | include/linux/array_size.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/array_size.h b/include/linux/array_size.h new file mode 100644 index 000000000000..06d7d83196ca --- /dev/null +++ b/include/linux/array_size.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_ARRAY_SIZE_H +#define _LINUX_ARRAY_SIZE_H + +#include <linux/compiler.h> + +/** + * ARRAY_SIZE - get the number of elements in array @arr + * @arr: array to be sized + */ +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) + +#endif /* _LINUX_ARRAY_SIZE_H */ |