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Date: Fri, 4 Feb 2022 17:21:44 -0600 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: Ariel Elior <aelior@...vell.com>, Sudarsana Kalluru <skalluru@...vell.com>, Manish Chopra <manishc@...vell.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org Subject: [PATCH][next] bnx2x: Replace one-element array with flexible-array member There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. This helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). This issue was found with the help of Coccinelle and audited and fixed, manually. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index a19dd6797070..447a75ea0cc1 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1271,7 +1271,7 @@ struct bnx2x_fw_stats_data { struct per_port_stats port; struct per_pf_stats pf; struct fcoe_statistics_params fcoe; - struct per_queue_stats queue_stats[1]; + struct per_queue_stats queue_stats[]; }; /* Public slow path states */ -- 2.27.0
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