linux-kernel - [PATCH v2][next] net: atlantic: Avoid -Wflex-array-member-not-at-end warnings

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Message-ID: <Z6F3KZVfnAZ2FoJm@kspp>
Date: Tue, 4 Feb 2025 12:40:49 +1030
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Igor Russkikh <irusskikh@...vell.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hardening@...r.kernel.org
Subject: [PATCH v2][next] net: atlantic: Avoid -Wflex-array-member-not-at-end
 warnings

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Remove unused flexible-array member `buf` and, with this, fix the following
warnings:
drivers/net/ethernet/aquantia/atlantic/aq_hw.h:197:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/ethernet/aquantia/atlantic/hw_atl/../aq_hw.h:197:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Suggested-by: Igor Russkikh <irusskikh@...vell.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
Changes in v2:
 - Remove unused flex-array member. (Igor)

v1:
 - Link: https://lore.kernel.org/linux-hardening/ZrDwoVKH8d6TdVxn@cute/

 drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
index f5901f8e3907..f6b990b7f5b4 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
@@ -226,7 +226,6 @@ struct __packed offload_info {
 	struct offload_port_info ports;
 	struct offload_ka_info kas;
 	struct offload_rr_info rrs;
-	u8 buf[];
 };
 
 struct __packed hw_atl_utils_fw_rpc {
-- 
2.43.0