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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-31 03:51:48 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2019-02-02 02:12:29 +0300 |
commit | 1f533ba6d50d0e7a104d1a2c1e1a28ee0b919a90 (patch) | |
tree | c2cf86cb0a4b7b3fab69c8fd31391caf6af1422d /net/ipv4/ipconfig.c | |
parent | ee69804714e204787ec8d06e80ec21e089f030a9 (diff) | |
download | linux-1f533ba6d50d0e7a104d1a2c1e1a28ee0b919a90.tar.xz |
ipv4: fib: 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[];
};
instance = kzalloc(sizeof(struct foo) + count * sizeof(struct boo), 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);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipconfig.c')
0 files changed, 0 insertions, 0 deletions