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9a00536c38
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 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>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| .. | ||
| fm10k.h | ||
| fm10k_common.c | ||
| fm10k_common.h | ||
| fm10k_dcbnl.c | ||
| fm10k_debugfs.c | ||
| fm10k_ethtool.c | ||
| fm10k_iov.c | ||
| fm10k_main.c | ||
| fm10k_mbx.c | ||
| fm10k_mbx.h | ||
| fm10k_netdev.c | ||
| fm10k_pci.c | ||
| fm10k_pf.c | ||
| fm10k_pf.h | ||
| fm10k_tlv.c | ||
| fm10k_tlv.h | ||
| fm10k_type.h | ||
| fm10k_vf.c | ||
| fm10k_vf.h | ||
| Makefile | ||