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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-02-25 13:01:32 -0600 |
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committer | David S. Miller <davem@davemloft.net> | 2019-02-25 14:18:02 -0800 |
commit | 78844068a7b9c995c3d03fd595639ebb920ed831 (patch) | |
tree | 31efa92b100255fdb974c37fc99f37303223b231 /net/sched | |
parent | 0eb5c29ae2a0ae6a38ee8e92398f609b7fab86e6 (diff) | |
download | linux-78844068a7b9c995c3d03fd595639ebb920ed831.tar.bz2 |
mlxsw: spectrum: acl: Use struct_size() in kzalloc()
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;
struct boo entry[];
};
size = sizeof(struct foo) + count * sizeof(struct boo);
instance = kzalloc(size, GFP_KERNEL)
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL)
Notice that, in this case, variable alloc_size 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>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
0 files changed, 0 insertions, 0 deletions