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Message-ID: <20201008142806.GA22162@embeddedor> Date: Thu, 8 Oct 2020 09:28:06 -0500 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: Sunil Goutham <sgoutham@...vell.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org> Cc: linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org Subject: [PATCH][next] net: thunderx: Use struct_size() helper in kmalloc() Make use of the new struct_size() helper instead of the offsetof() idiom. Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- drivers/net/ethernet/cavium/thunder/nicvf_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index 0a94c396173b..f3b7b443f964 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -2065,8 +2065,8 @@ static void nicvf_set_rx_mode(struct net_device *netdev) mode |= BGX_XCAST_MCAST_FILTER; /* here we need to copy mc addrs */ if (netdev_mc_count(netdev)) { - mc_list = kmalloc(offsetof(typeof(*mc_list), - mc[netdev_mc_count(netdev)]), + mc_list = kmalloc(struct_size(mc_list, mc, + netdev_mc_count(netdev)), GFP_ATOMIC); if (unlikely(!mc_list)) return; -- 2.27.0
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