cxgb4: clip_tbl: Use struct_size() in kvzalloc()

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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 = kvzalloc(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 = kvzalloc(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>

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Gustavo A. R. Silva 2019-01-29 10:44:44 -06:00 • committed by David S. Miller

parent baa962e39d

commit 9f67298433

1 changed files with 1 additions and 2 deletions

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drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c

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