| From | Alejandro Colomar <> | Subject | [PATCH v2 02/20] linux/stddef.h, linux/sizeof_field.h: Split sizeof_field() into a separate header | Date | Sat, 20 Nov 2021 14:00:45 +0100 |
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Include <linux/sizeof_field.h> from <linux/stddef.h> for compatibility.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> --- include/linux/sizeof_field.h | 15 +++++++++++++++ include/linux/stddef.h | 9 +-------- 2 files changed, 16 insertions(+), 8 deletions(-) create mode 100644 include/linux/sizeof_field.h
diff --git a/include/linux/sizeof_field.h b/include/linux/sizeof_field.h new file mode 100644 index 000000000000..15dc10fce8f3 --- /dev/null +++ b/include/linux/sizeof_field.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_SIZEOF_FIELD_H +#define _LINUX_SIZEOF_FIELD_H + + +/** + * sizeof_field() - Report the size of a struct field in bytes + * + * @T: The structure containing the field of interest + * @m: The field (member) to return the size of + */ +#define sizeof_field(T, m) sizeof((((T *)0)->m)) + + +#endif /* _LINUX_SIZEOF_FIELD_H */ diff --git a/include/linux/stddef.h b/include/linux/stddef.h index 41217710788e..1be2c71c1e85 100644 --- a/include/linux/stddef.h +++ b/include/linux/stddef.h @@ -6,6 +6,7 @@ #include <uapi/linux/stddef.h> #include <linux/offsetof.h> +#include <linux/sizeof_field.h> #undef NULL @@ -16,14 +17,6 @@ enum { true = 1 }; -/** - * sizeof_field() - Report the size of a struct field in bytes - * - * @TYPE: The structure containing the field of interest - * @MEMBER: The field to return the size of - */ -#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER)) - /** * offsetofend() - Report the offset of a struct field within the struct * -- 2.33.1
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