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author | 2019-02-07 18:56:08 -0600 | |
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committer | 2019-02-12 00:39:39 +0100 | |
commit | 6ca64ef37da930ad0fd0f2c3dac1a4607e0af494 (patch) | |
tree | 718edc3e579b81176cc3107e82d699ac56c2c4df /net/netfilter/nf_conntrack_seqadj.c | |
parent | ipvs: Use struct_size() helper (diff) | |
download | linux-dev-6ca64ef37da930ad0fd0f2c3dac1a4607e0af494.tar.xz linux-dev-6ca64ef37da930ad0fd0f2c3dac1a4607e0af494.zip |
netfilter: xt_recent: Use struct_size() in kvzalloc()
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 foo {
int stuff;
void *entry[];
};
size = sizeof(struct foo) + count * sizeof(void *);
instance = alloc(size, GFP_KERNEL)
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
size = struct_size(instance, entry, count);
instance = alloc(size, GFP_KERNEL)
Notice that, in this case, variable sz is not necessary, hence it is
removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_seqadj.c')
0 files changed, 0 insertions, 0 deletions