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Date:   Wed, 12 Oct 2022 09:04:15 +1300
From:   Paulo Miguel Almeida <>
To:     Christine Caulfield <>,
        David Teigland <>,
Subject: [PATCH v4] [next] dlm: replace one-element array with fixed size

One-element arrays are deprecated. So, replace one-element array with
fixed size array member in struct dlm_ls, and refactor the rest of the
code, accordingly.


Signed-off-by: Paulo Miguel Almeida <>

v4: resend patch using the right version number. Req: Gustavo Silva
v3: replace one-element array with a fixed size array. Req: Kees Cook
v2: patch resent as I had an issue with a <CRLF> char in my mail client
 fs/dlm/dlm_internal.h | 2 +-
 fs/dlm/lockspace.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index e34c3d2639a5..94fadb619ba0 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -670,7 +670,7 @@ struct dlm_ls {
 	void			*ls_ops_arg;
 	int			ls_namelen;
-	char			ls_name[1];
+	char			ls_name[DLM_LOCKSPACE_LEN + 1];
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index bae050df7abf..23de0d47cbc1 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -473,7 +473,7 @@ static int new_lockspace(const char *name, const char *cluster,
 	error = -ENOMEM;
-	ls = kzalloc(sizeof(struct dlm_ls) + namelen, GFP_NOFS);
+	ls = kzalloc(sizeof(struct dlm_ls), GFP_NOFS);
 	if (!ls)
 		goto out;
 	memcpy(ls->ls_name, name, namelen);

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