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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-08-29 14:06:05 -0500 |
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committer | Dennis Zhou <dennis@kernel.org> | 2019-09-04 13:40:49 -0700 |
commit | 14d3761245551bdfc516abd8214a9f76bfd51435 (patch) | |
tree | 3dc48f37789de59f6ff352b50728a2169574b93d /include | |
parent | 69ab285b682328ef7622f0567f8afebb00b404f3 (diff) | |
download | linux-14d3761245551bdfc516abd8214a9f76bfd51435.tar.bz2 |
percpu: Use struct_size() helper
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct pcpu_alloc_info {
...
struct pcpu_group_info groups[];
};
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
So, replace the following form:
sizeof(*ai) + nr_groups * sizeof(ai->groups[0])
with:
struct_size(ai, groups, nr_groups)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions