nfs: fix anonymous member initializer build failure with older compilers

Older versions of gcc don't understand named initializers inside a
anonymous structure or union member.  It can be worked around by adding
the bracin gin the initializer for the anonymous member.

Without this, gcc 4.4.4 will fail the build with

    CC      fs/nfs/nfs4state.o
  fs/nfs/nfs4state.c:69: error: unknown field ‘data’ specified in initializer
  fs/nfs/nfs4state.c:69: warning: missing braces around initializer
  fs/nfs/nfs4state.c:69: warning: (near initialization for ‘zero_stateid.<anonymous>.data’)
  make[2]: *** [fs/nfs/nfs4state.o] Error 1

introduced in commit 93b717fd81bf ("NFSv4: Label stateids with the type")

Reported-and-tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Anna Schumaker <Anna.Schumaker@netapp.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 5075592df145a9af6d18df74a0292ff862334576..9679f47493640d4ce4a8a5e571727ece40e13625 100644 (file)
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -66,7 +66,7 @@
 #define OPENOWNER_POOL_SIZE    8
 
 const nfs4_stateid zero_stateid = {
-       .data = { 0 },
+       { .data = { 0 } },
        .type = NFS4_SPECIAL_STATEID_TYPE,
 };
 static DEFINE_MUTEX(nfs_clid_init_mutex);