From: Kees Cook <kees@kernel.org>
To: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
Johannes Berg <johannes@sipsolutions.net>,
David Ahern <dsahern@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org, Simon Horman <horms@kernel.org>
Subject: Re: [PATCH v2 3/4][next] uapi: net: arp: Avoid -Wflex-array-member-not-at-end warnings
Date: Mon, 28 Oct 2024 16:35:53 -0700 [thread overview]
Message-ID: <202410281635.3BC028D@keescook> (raw)
In-Reply-To: <903f37962945fe0aa46e1d05c2a05f39571a53fa.1729802213.git.gustavoars@kernel.org>
On Thu, Oct 24, 2024 at 03:13:45PM -0600, Gustavo A. R. Silva wrote:
> -Wflex-array-member-not-at-end was introduced in GCC-14, and we are
> getting ready to enable it, globally.
>
> Address the following warnings by changing the type of the middle struct
> members in a couple of composite structs, which are currently causing
> trouble, from `struct sockaddr` to `struct __kernel_sockaddr_legacy`.
>
> include/uapi/linux/if_arp.h:118:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
> include/uapi/linux/if_arp.h:119:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
> include/uapi/linux/if_arp.h:121:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
> include/uapi/linux/if_arp.h:126:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
> include/uapi/linux/if_arp.h:127:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
>
> Also, refactor some related code, accordingly.
>
> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <kees@kernel.org>
--
Kees Cook
next prev parent reply other threads:[~2024-10-28 23:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-24 21:07 [PATCH v2 0/4][next] net: Avoid thousands of -Wflex-array-member-not-at-end warnings Gustavo A. R. Silva
2024-10-24 21:11 ` [PATCH v2 1/4][next] uapi: socket: Introduce struct sockaddr_legacy Gustavo A. R. Silva
2024-10-28 20:38 ` Andrew Lunn
2024-10-28 20:47 ` Johannes Berg
2024-10-28 23:40 ` Kees Cook
2024-10-28 23:31 ` Kees Cook
2024-10-28 23:34 ` Kees Cook
2024-11-01 1:01 ` Jakub Kicinski
2024-11-04 3:43 ` Kees Cook
2024-10-24 21:12 ` [PATCH v2 2/4][next] uapi: wireless: Avoid -Wflex-array-member-not-at-end warnings Gustavo A. R. Silva
2024-10-28 23:35 ` Kees Cook
2024-10-24 21:13 ` [PATCH v2 3/4][next] uapi: net: arp: " Gustavo A. R. Silva
2024-10-28 23:35 ` Kees Cook [this message]
2024-10-24 21:14 ` [PATCH v2 4/4][next] uapi: net: " Gustavo A. R. Silva
2024-10-28 23:37 ` Kees Cook
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