linux-hardening - Re: [RESEND PATCH][next] fs: nfs: acl: Avoid -Wflex-array-member-not-at-end warning

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Message-ID: <173998787836.10421.7389404025921854937.b4-ty@oracle.com>
Date: Wed, 19 Feb 2025 12:58:10 -0500
From: cel@...nel.org
To: Jeff Layton <jlayton@...nel.org>,
	Neil Brown <neilb@...e.de>,
	Olga Kornievskaia <okorniev@...hat.com>,
	Dai Ngo <Dai.Ngo@...cle.com>,
	Tom Talpey <tom@...pey.com>,
	Trond Myklebust <trondmy@...nel.org>,
	Anna Schumaker <anna@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Chuck Lever <chuck.lever@...cle.com>,
	linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [RESEND PATCH][next] fs: nfs: acl: Avoid -Wflex-array-member-not-at-end warning

From: Chuck Lever <chuck.lever@...cle.com>

On Tue, 04 Feb 2025 13:33:36 +1030, 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.
> 
> So, in order to avoid ending up with a flexible-array member in the
> middle of other structs, we use the `struct_group_tagged()` helper
> to create a new tagged `struct posix_acl_hdr`. This structure
> groups together all the members of the flexible `struct posix_acl`
> except the flexible array.
> 
> [...]

Applied to nfsd-testing, thanks!

[1/1] fs: nfs: acl: Avoid -Wflex-array-member-not-at-end warning
      commit: 5aea7cd1e98f11108d019c3b629fce37f526377f

--
Chuck Lever