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370600afdd
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 fsz 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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|---|---|---|
| .. | ||
| bnx2x | ||
| bnxt | ||
| genet | ||
| b44.c | ||
| b44.h | ||
| bcm63xx_enet.c | ||
| bcm63xx_enet.h | ||
| bcmsysport.c | ||
| bcmsysport.h | ||
| bgmac-bcma-mdio.c | ||
| bgmac-bcma.c | ||
| bgmac-platform.c | ||
| bgmac.c | ||
| bgmac.h | ||
| bnx2_fw.h | ||
| bnx2.c | ||
| bnx2.h | ||
| cnic_defs.h | ||
| cnic_if.h | ||
| cnic.c | ||
| cnic.h | ||
| Kconfig | ||
| Makefile | ||
| sb1250-mac.c | ||
| tg3.c | ||
| tg3.h | ||