git: 695d87bae1ec - main - nfscl: Make coverity happy

From: Rick Macklem <rmacklem_at_FreeBSD.org>
Date: Wed, 29 Mar 2023 00:11:03 UTC
The branch main has been updated by rmacklem:

URL: https://cgit.FreeBSD.org/src/commit/?id=695d87bae1ec826fcf796f99b9de9cdd8c37fb8c

commit 695d87bae1ec826fcf796f99b9de9cdd8c37fb8c
Author:     Rick Macklem <rmacklem@FreeBSD.org>
AuthorDate: 2023-03-29 00:08:45 +0000
Commit:     Rick Macklem <rmacklem@FreeBSD.org>
CommitDate: 2023-03-29 00:08:45 +0000

    nfscl: Make coverity happy
    
    Coverity does not like code that checks a function's
    return value sometimes.  Add "(void)" in front of the
    function when the return value does not matter to try
    and make it happy.
    
    A recent commit deleted "(void)"s in front of nfsm_fhtom().
    This commit puts them back in.
    
    Reported by:    emaste
    MFC after:      3 months
---
 sys/fs/nfs/nfs_commonsubs.c      |  4 ++--
 sys/fs/nfsclient/nfs_clrpcops.c  | 20 ++++++++++----------
 sys/fs/nfsserver/nfs_nfsdserv.c  | 18 +++++++++---------
 sys/fs/nfsserver/nfs_nfsdstate.c |  6 +++---
 4 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/sys/fs/nfs/nfs_commonsubs.c b/sys/fs/nfs/nfs_commonsubs.c
index 9e70eea522c4..48798087b177 100644
--- a/sys/fs/nfs/nfs_commonsubs.c
+++ b/sys/fs/nfs/nfs_commonsubs.c
@@ -437,7 +437,7 @@ nfscl_reqstart(struct nfsrv_descript *nd, int procnum, struct nfsmount *nmp,
 		if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh > 0) {
 			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 			*tl = txdr_unsigned(NFSV4OP_PUTFH);
-			nfsm_fhtom(nmp, nd, nfhp, fhlen, 0);
+			(void)nfsm_fhtom(nmp, nd, nfhp, fhlen, 0);
 			if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh
 			    == 2 && procnum != NFSPROC_WRITEDS &&
 			    procnum != NFSPROC_COMMITDS) {
@@ -468,7 +468,7 @@ nfscl_reqstart(struct nfsrv_descript *nd, int procnum, struct nfsmount *nmp,
 			*tl = txdr_unsigned(nfsv4_opmap[procnum].op);
 		}
 	} else {
-		nfsm_fhtom(NULL, nd, nfhp, fhlen, 0);
+		(void)nfsm_fhtom(NULL, nd, nfhp, fhlen, 0);
 	}
 	if (procnum < NFSV42_NPROCS)
 		NFSINCRGLOBAL(nfsstatsv1.rpccnt[procnum]);
diff --git a/sys/fs/nfsclient/nfs_clrpcops.c b/sys/fs/nfsclient/nfs_clrpcops.c
index 9a8e7436f620..70c7619e679a 100644
--- a/sys/fs/nfsclient/nfs_clrpcops.c
+++ b/sys/fs/nfsclient/nfs_clrpcops.c
@@ -2585,7 +2585,7 @@ nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap,
 	/* Get the directory's post-op attributes. */
 	NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_PUTFH);
-	nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
+	(void)nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
 	NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_GETATTR);
 	(void) nfsrv_putattrbit(nd, &attrbits);
@@ -2785,7 +2785,7 @@ tryagain:
 			*tl++ = dstateid.other[2];
 			*tl = txdr_unsigned(NFSV4OP_PUTFH);
 			np = VTONFS(dvp);
-			nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
+			(void)nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
 			    np->n_fhp->nfh_len, 0);
 			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 			*tl = txdr_unsigned(NFSV4OP_REMOVE);
@@ -2873,7 +2873,7 @@ tryagain:
 				NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 				*tl = txdr_unsigned(NFSV4OP_PUTFH);
 				np = VTONFS(tvp);
-				nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
+				(void)nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
 				    np->n_fhp->nfh_len, 0);
 				NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 				*tl = txdr_unsigned(NFSV4OP_DELEGRETURN);
@@ -2893,7 +2893,7 @@ tryagain:
 			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 			*tl = txdr_unsigned(NFSV4OP_PUTFH);
 			np = VTONFS(fdvp);
-			nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
+			(void)nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh,
 			    np->n_fhp->nfh_len, 0);
 			NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 			*tl = txdr_unsigned(NFSV4OP_SAVEFH);
@@ -2910,7 +2910,7 @@ tryagain:
 		(void) nfsrv_putattrbit(nd, &attrbits);
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 		*tl = txdr_unsigned(NFSV4OP_PUTFH);
-		nfsm_fhtom(nmp, nd, VTONFS(tdvp)->n_fhp->nfh_fh,
+		(void)nfsm_fhtom(nmp, nd, VTONFS(tdvp)->n_fhp->nfh_fh,
 		    VTONFS(tdvp)->n_fhp->nfh_len, 0);
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 		*tl = txdr_unsigned(NFSV4OP_GETATTR);
@@ -2921,7 +2921,7 @@ tryagain:
 	}
 	(void) nfsm_strtom(nd, fnameptr, fnamelen);
 	if (!(nd->nd_flag & ND_NFSV4))
-		nfsm_fhtom(nmp, nd, VTONFS(tdvp)->n_fhp->nfh_fh,
+		(void)nfsm_fhtom(nmp, nd, VTONFS(tdvp)->n_fhp->nfh_fh,
 			VTONFS(tdvp)->n_fhp->nfh_len, 0);
 	(void) nfsm_strtom(nd, tnameptr, tnamelen);
 	error = nfscl_request(nd, fdvp, p, cred);
@@ -3006,7 +3006,7 @@ nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen,
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 		*tl = txdr_unsigned(NFSV4OP_PUTFH);
 	}
-	nfsm_fhtom(VFSTONFS(dvp->v_mount), nd, VTONFS(dvp)->n_fhp->nfh_fh,
+	(void)nfsm_fhtom(VFSTONFS(dvp->v_mount), nd, VTONFS(dvp)->n_fhp->nfh_fh,
 		VTONFS(dvp)->n_fhp->nfh_len, 0);
 	if (nd->nd_flag & ND_NFSV4) {
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
@@ -3146,7 +3146,7 @@ nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap,
 		(void) nfsrv_putattrbit(nd, &attrbits);
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 		*tl = txdr_unsigned(NFSV4OP_PUTFH);
-		nfsm_fhtom(nmp, nd, fhp->nfh_fh, fhp->nfh_len, 0);
+		(void)nfsm_fhtom(nmp, nd, fhp->nfh_fh, fhp->nfh_len, 0);
 		NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 		*tl = txdr_unsigned(NFSV4OP_GETATTR);
 		(void) nfsrv_putattrbit(nd, &attrbits);
@@ -8230,7 +8230,7 @@ nfsrpc_createlayout(vnode_t dvp, char *name, int namelen, struct vattr *vap,
 	/* Get the directory's post-op attributes. */
 	NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_PUTFH);
-	nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
+	(void)nfsm_fhtom(nmp, nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0);
 	NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_GETATTR);
 	nfsrv_putattrbit(nd, &attrbits);
@@ -8635,7 +8635,7 @@ nfsrpc_copyrpc(vnode_t invp, off_t inoff, vnode_t outvp, off_t outoff,
 	nfsrv_putattrbit(nd, &attrbits);
 	NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_PUTFH);
-	nfsm_fhtom(nmp, nd, VTONFS(outvp)->n_fhp->nfh_fh,
+	(void)nfsm_fhtom(nmp, nd, VTONFS(outvp)->n_fhp->nfh_fh,
 	    VTONFS(outvp)->n_fhp->nfh_len, 0);
 	NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED);
 	*tl = txdr_unsigned(NFSV4OP_COPY);
diff --git a/sys/fs/nfsserver/nfs_nfsdserv.c b/sys/fs/nfsserver/nfs_nfsdserv.c
index cf88e5ea4ebe..01ecf0b09ebd 100644
--- a/sys/fs/nfsserver/nfs_nfsdserv.c
+++ b/sys/fs/nfsserver/nfs_nfsdserv.c
@@ -672,10 +672,10 @@ nfsrvd_lookup(struct nfsrv_descript *nd, __unused int isdgram,
 		goto out;
 	}
 	if (nd->nd_flag & ND_NFSV2) {
-		nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
 		nfsrv_fillattr(nd, &nva);
 	} else if (nd->nd_flag & ND_NFSV3) {
-		nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
 		nfsrv_postopattr(nd, 0, &nva);
 		nfsrv_postopattr(nd, dattr_ret, &dattr);
 	}
@@ -1282,7 +1282,7 @@ nfsrvd_create(struct nfsrv_descript *nd, __unused int isdgram,
 	}
 	if (nd->nd_flag & ND_NFSV2) {
 		if (!nd->nd_repstat) {
-			nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 0);
+			(void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 0);
 			nfsrv_fillattr(nd, &nva);
 		}
 	} else {
@@ -1292,7 +1292,7 @@ nfsrvd_create(struct nfsrv_descript *nd, __unused int isdgram,
 		diraft_ret = nfsvno_getattr(dirp, &diraft, nd, p, 0, NULL);
 		vrele(dirp);
 		if (!nd->nd_repstat) {
-			nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 1);
+			(void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 1);
 			nfsrv_postopattr(nd, 0, &nva);
 		}
 		nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
@@ -1492,7 +1492,7 @@ nfsrvd_mknod(struct nfsrv_descript *nd, __unused int isdgram,
 	vrele(dirp);
 	if (!nd->nd_repstat) {
 		if (nd->nd_flag & ND_NFSV3) {
-			nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
+			(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
 			nfsrv_postopattr(nd, 0, &nva);
 		} else {
 			NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
@@ -1946,7 +1946,7 @@ nfsrvd_symlink(struct nfsrv_descript *nd, __unused int isdgram,
 
 	if (nd->nd_flag & ND_NFSV3) {
 		if (!nd->nd_repstat) {
-			nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
+			(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
 			nfsrv_postopattr(nd, 0, &nva);
 		}
 		nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
@@ -2070,12 +2070,12 @@ nfsrvd_mkdir(struct nfsrv_descript *nd, __unused int isdgram,
 
 	if (nd->nd_flag & ND_NFSV3) {
 		if (!nd->nd_repstat) {
-			nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
+			(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 1);
 			nfsrv_postopattr(nd, 0, &nva);
 		}
 		nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
 	} else if (!nd->nd_repstat) {
-		nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
 		nfsrv_fillattr(nd, &nva);
 	}
 
@@ -3462,7 +3462,7 @@ nfsrvd_getfh(struct nfsrv_descript *nd, __unused int isdgram,
 	nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
 	vput(vp);
 	if (!nd->nd_repstat)
-		nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)&fh, 0, 0);
 	NFSEXITCODE2(0, nd);
 	return (0);
 }
diff --git a/sys/fs/nfsserver/nfs_nfsdstate.c b/sys/fs/nfsserver/nfs_nfsdstate.c
index 267b030d8d65..4a552298671e 100644
--- a/sys/fs/nfsserver/nfs_nfsdstate.c
+++ b/sys/fs/nfsserver/nfs_nfsdstate.c
@@ -4529,7 +4529,7 @@ nfsrv_docallback(struct nfsclient *clp, int procnum, nfsv4stateid_t *stateidp,
 			m_freem(nd->nd_mreq);
 			goto errout;
 		}
-		nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, NFSX_MYFH, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, NFSX_MYFH, 0);
 		(void)nfsrv_putattrbit(nd, attrbitp);
 	} else if (procnum == NFSV4OP_CBRECALL) {
 		nd->nd_procnum = NFSV4PROC_CBCOMPOUND;
@@ -4548,7 +4548,7 @@ nfsrv_docallback(struct nfsclient *clp, int procnum, nfsv4stateid_t *stateidp,
 			*tl = newnfs_true;
 		else
 			*tl = newnfs_false;
-		nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, NFSX_MYFH, 0);
+		(void)nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, NFSX_MYFH, 0);
 	} else if (procnum == NFSV4OP_CBLAYOUTRECALL) {
 		NFSD_DEBUG(4, "docallback layout recall\n");
 		nd->nd_procnum = NFSV4PROC_CBCOMPOUND;
@@ -4567,7 +4567,7 @@ nfsrv_docallback(struct nfsclient *clp, int procnum, nfsv4stateid_t *stateidp,
 		else
 			*tl++ = newnfs_false;
 		*tl = txdr_unsigned(NFSV4LAYOUTRET_FILE);
-		nfsm_fhtom(NULL, nd, (uint8_t *)fhp, NFSX_MYFH, 0);
+		(void)nfsm_fhtom(NULL, nd, (uint8_t *)fhp, NFSX_MYFH, 0);
 		NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_HYPER + NFSX_STATEID);
 		tval = 0;
 		txdr_hyper(tval, tl); tl += 2;