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af6f12f22b
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:
instance = alloc(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>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| .. | ||
| abm | ||
| bpf | ||
| flower | ||
| nfpcore | ||
| nic | ||
| Makefile | ||
| nfp_abi.h | ||
| nfp_app_nic.c | ||
| nfp_app.c | ||
| nfp_app.h | ||
| nfp_asm.c | ||
| nfp_asm.h | ||
| nfp_devlink.c | ||
| nfp_hwmon.c | ||
| nfp_main.c | ||
| nfp_main.h | ||
| nfp_net_common.c | ||
| nfp_net_ctrl.c | ||
| nfp_net_ctrl.h | ||
| nfp_net_debugdump.c | ||
| nfp_net_debugfs.c | ||
| nfp_net_ethtool.c | ||
| nfp_net_main.c | ||
| nfp_net_repr.c | ||
| nfp_net_repr.h | ||
| nfp_net_sriov.c | ||
| nfp_net_sriov.h | ||
| nfp_net.h | ||
| nfp_netvf_main.c | ||
| nfp_port.c | ||
| nfp_port.h | ||
| nfp_shared_buf.c | ||