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NFSD: Avoid multiple -Wflex-array-member-not-at-end warnings

Replace flexible-array member with a fixed-size array.

With this changes, fix many instances of the following type of
warnings:

fs/nfsd/nfsfh.h:79:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/nfsd/state.h:763:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/nfsd/state.h:669:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/nfsd/state.h:549:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/nfsd/xdr4.h:705:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/nfsd/xdr4.h:678:33: 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@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

authored by

Gustavo A. R. Silva and committed by
Chuck Lever e609e386 3f3503ad

+1 -1
+1 -1
fs/nfsd/nfsfh.h
··· 56 56 u8 fh_auth_type; /* deprecated */ 57 57 u8 fh_fsid_type; 58 58 u8 fh_fileid_type; 59 - u32 fh_fsid[]; /* flexible-array member */ 59 + u32 fh_fsid[NFS4_FHSIZE / 4 - 1]; 60 60 }; 61 61 }; 62 62 };