From 0ab88ca4bcf18ba21058d8f19220f60afe0d34d8 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 22 Mar 2019 15:07:11 +0100 Subject: nfsd: avoid uninitialized variable warning clang warns that 'contextlen' may be accessed without an initialization: fs/nfsd/nfs4xdr.c:2911:9: error: variable 'contextlen' is uninitialized when used here [-Werror,-Wuninitialized] contextlen); ^~~~~~~~~~ fs/nfsd/nfs4xdr.c:2424:16: note: initialize the variable 'contextlen' to silence this warning int contextlen; ^ = 0 Presumably this cannot happen, as FATTR4_WORD2_SECURITY_LABEL is set if CONFIG_NFSD_V4_SECURITY_LABEL is enabled. Adding another #ifdef like the other two in this function avoids the warning. Signed-off-by: Arnd Bergmann Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4xdr.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/nfsd') diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 3de42a729093..a3a3455826aa 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2420,8 +2420,10 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, __be32 status; int err; struct nfs4_acl *acl = NULL; +#ifdef CONFIG_NFSD_V4_SECURITY_LABEL void *context = NULL; int contextlen; +#endif bool contextsupport = false; struct nfsd4_compoundres *resp = rqstp->rq_resp; u32 minorversion = resp->cstate.minorversion; @@ -2906,12 +2908,14 @@ out_acl: *p++ = cpu_to_be32(NFS4_CHANGE_TYPE_IS_TIME_METADATA); } +#ifdef CONFIG_NFSD_V4_SECURITY_LABEL if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) { status = nfsd4_encode_security_label(xdr, rqstp, context, contextlen); if (status) goto out; } +#endif attrlen = htonl(xdr->buf->len - attrlen_offset - 4); write_bytes_to_xdr_buf(xdr->buf, attrlen_offset, &attrlen, 4); -- cgit v1.2.3