diff options
author | Ingo Molnar <mingo@kernel.org> | 2020-06-26 12:24:42 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2020-06-26 12:24:42 +0200 |
commit | 2c92d787cc9fad57d05c96bd117782183768258a (patch) | |
tree | 51c0c567b8be2fd56073a8ce31f8ebd123a7d562 /include/linux/overflow.h | |
parent | 145a773aef83181d47ebab21bb33c89233aadb1e (diff) | |
parent | 8be3a53e18e0e1a98f288f6c7f5e9da3adbe9c49 (diff) |
Merge branch 'linus' into x86/entry, to resolve conflictsx86_entry_for_5.8
Conflicts:
arch/x86/kernel/traps.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/overflow.h')
-rw-r--r-- | include/linux/overflow.h | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/include/linux/overflow.h b/include/linux/overflow.h index 659045046468..93fcef105061 100644 --- a/include/linux/overflow.h +++ b/include/linux/overflow.h @@ -304,16 +304,33 @@ static inline __must_check size_t __ab_c_size(size_t a, size_t b, size_t c) * struct_size() - Calculate size of structure with trailing array. * @p: Pointer to the structure. * @member: Name of the array member. - * @n: Number of elements in the array. + * @count: Number of elements in the array. * * Calculates size of memory needed for structure @p followed by an - * array of @n @member elements. + * array of @count number of @member elements. * * Return: number of bytes needed or SIZE_MAX on overflow. */ -#define struct_size(p, member, n) \ - __ab_c_size(n, \ +#define struct_size(p, member, count) \ + __ab_c_size(count, \ sizeof(*(p)->member) + __must_be_array((p)->member),\ sizeof(*(p))) +/** + * flex_array_size() - Calculate size of a flexible array member + * within an enclosing structure. + * + * @p: Pointer to the structure. + * @member: Name of the flexible array member. + * @count: Number of elements in the array. + * + * Calculates size of a flexible array of @count number of @member + * elements, at the end of structure @p. + * + * Return: number of bytes needed or SIZE_MAX on overflow. + */ +#define flex_array_size(p, member, count) \ + array_size(count, \ + sizeof(*(p)->member) + __must_be_array((p)->member)) + #endif /* __LINUX_OVERFLOW_H */ |