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Message-ID: <Z-SZKNdCiAkVJvqm@kspp>
Date: Wed, 26 Mar 2025 18:17:44 -0600
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavoars@...nel.org>,
linux-hardening@...r.kernel.org
Subject: [PATCH][next] fs: namespace: 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.
Move the conflicting declaration to the end of the structure. Notice
that `struct statmount` is a flexible structure --a structure that
contains a flexible-array member.
Fix the following warning:
fs/namespace.c:5329:26: 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>
---
fs/namespace.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 6100e5b962a6..16292ff760c9 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -5326,8 +5326,10 @@ struct kstatmount {
struct mnt_idmap *idmap;
u64 mask;
struct path root;
- struct statmount sm;
struct seq_file seq;
+
+ /* Must be last --ends in a flexible-array member. */
+ struct statmount sm;
};
static u64 mnt_to_attr_flags(struct vfsmount *mnt)
--
2.43.0
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