wimax/i2400m: use struct_size() helper
authorGustavo A. R. Silva <gustavo@embeddedor.com>
Wed, 1 May 2019 03:27:32 +0000 (22:27 -0500)
committerDavid S. Miller <davem@davemloft.net>
Sat, 4 May 2019 04:04:31 +0000 (00:04 -0400)
commit70bb13a5ffb466a21508a63110f574eb99046eee
treec7690bcc78f8eafebde1d09201c6436a1bf983c9
parent504159c3837e80cdf487325ac52ba55a05a7943f
wimax/i2400m: use struct_size() helper

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, replace code of the following form:

sizeof(*tx_msg) + le16_to_cpu(tx_msg->num_pls) * sizeof(tx_msg->pld[0]);

with:

struct_size(tx_msg, pld, le16_to_cpu(tx_msg->num_pls));

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>
drivers/net/wimax/i2400m/tx.c