linux-kernel - [PATCH] NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid

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Date:   Sat, 18 Nov 2017 13:50:11 -0500
From:   Trond Myklebust <trond.myklebust@...marydata.com>
To:     Anna Schumaker <anna.schumaker@...app.com>
Cc:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        "linux-nfs @ vger . kernel . org" <linux-nfs@...r.kernel.org>,
        "linux-kernel @ vger . kernel . org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"

gcc 4.4.4 is too old to have full C11 anonymous union support, so
the current initialiser fails to compile.

Reported-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@...marydata.com>
---
 fs/nfs/nfs4state.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 980462d577ca..231b5ea2464a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -71,8 +71,8 @@ const nfs4_stateid zero_stateid = {
 };
 const nfs4_stateid invalid_stateid = {
 	{
-		.seqid = cpu_to_be32(0xffffffffU),
-		.other = { 0 },
+		/* Funky initialiser keeps older gcc versions happy */
+		.data = { 0xff, 0xff, 0xff, 0xff, 0 },
 	},
 	.type = NFS4_INVALID_STATEID_TYPE,
 };
-- 
2.14.3