linux-kernel - [PATCH v2][next] IB/hfi1: Avoid -Wflex-array-member-not-at-end warning

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Message-ID: <Z-wiYkll8Vo3ME3P@kspp>
Date: Tue, 1 Apr 2025 11:29:06 -0600
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
	Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky <leon@...nel.org>
Cc: linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hardening@...r.kernel.org
Subject: [PATCH v2][next] IB/hfi1: Avoid -Wflex-array-member-not-at-end
 warning

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

Remove unused flex-array member `class_data` from
`struct opa_mad_notice_attr`.

Fix the following warning:

drivers/infiniband/hw/hfi1/mad.c:23:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
Changes in v2:
 - Remove unused flexible array. (Jason)

v1:
 - Link: https://lore.kernel.org/linux-hardening/Z-WgwsCYIXaBxnvs@kspp/

 drivers/infiniband/hw/hfi1/mad.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/mad.h b/drivers/infiniband/hw/hfi1/mad.h
index b6e3141253c4..d6dde762921a 100644
--- a/drivers/infiniband/hw/hfi1/mad.h
+++ b/drivers/infiniband/hw/hfi1/mad.h
@@ -124,7 +124,6 @@ struct opa_mad_notice_attr {
 		} __packed ntc_2048;
 
 	};
-	u8	class_data[];
 };
 
 #define IB_VLARB_LOWPRI_0_31    1
-- 
2.43.0