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| author |   Xiu Jianfeng <xiujianfeng@huawei.com> | 2021-12-20 19:30:48 +0800 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2021-12-21 15:35:48 -0800 |
| commit | 0dd668d2080c46cf914e131f341fa114a34c5a20 (patch) | |
| tree | 517c7fec6a7f96131428e820f97d87bbaca37f98 /kernel/bpf/local_storage.c | |
| parent | selftests/bpf: Correct the INDEX address in vmtest.sh (diff) | |
| download | linux-dev-0dd668d2080c46cf914e131f341fa114a34c5a20.tar.xz linux-dev-0dd668d2080c46cf914e131f341fa114a34c5a20.zip | |
bpf: Use struct_size() helper
In an effort to avoid open-coded arithmetic in the kernel, use the
struct_size() helper instead of open-coded calculation.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://github.com/KSPP/linux/issues/160
Link: https://lore.kernel.org/bpf/20211220113048.2859-1-xiujianfeng@huawei.com
Diffstat (limited to 'kernel/bpf/local_storage.c')
| -rw-r--r-- | kernel/bpf/local_storage.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c index 035e9e3a7132..23f7f9d08a62 100644 --- a/kernel/bpf/local_storage.c +++ b/kernel/bpf/local_storage.c @@ -163,8 +163,7 @@ static int cgroup_storage_update_elem(struct bpf_map *map, void *key, return 0; } - new = bpf_map_kmalloc_node(map, sizeof(struct bpf_storage_buffer) + - map->value_size, + new = bpf_map_kmalloc_node(map, struct_size(new, data, map->value_size), __GFP_ZERO | GFP_ATOMIC | __GFP_NOWARN, map->numa_node); if (!new) |