Return-Path: linux-nfs-owner@vger.kernel.org Received: from fieldses.org ([174.143.236.118]:58320 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751433AbaEVTwl (ORCPT ); Thu, 22 May 2014 15:52:41 -0400 Date: Thu, 22 May 2014 15:52:39 -0400 From: "J. Bruce Fields" To: Benoit Taine Cc: kernel-janitors@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] nfsd: Remove assignments inside conditions Message-ID: <20140522195239.GB25423@fieldses.org> References: <1400769150-416-1-git-send-email-benoit.taine@lip6.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1400769150-416-1-git-send-email-benoit.taine@lip6.fr> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Thu, May 22, 2014 at 04:32:30PM +0200, Benoit Taine wrote: > Assignments should not happen inside an if conditional, but in the line > before. This issue was reported by checkpatch. OK, applying for 3.16. --b. > > The semantic patch that makes this change is as follows > (http://coccinelle.lip6.fr/): > > // > > @@ > identifier i1; > expression e1; > statement S; > @@ > -if(!(i1 = e1)) S > +i1 = e1; > +if(!i1) > +S > > // > > It has been tested by compilation. > > Signed-off-by: Benoit Taine > --- > fs/nfsd/nfs2acl.c | 12 ++++++++---- > fs/nfsd/nfs3acl.c | 6 ++++-- > fs/nfsd/nfs3xdr.c | 27 ++++++++++++++++++--------- > fs/nfsd/nfsxdr.c | 15 ++++++++++----- > 4 files changed, 40 insertions(+), 20 deletions(-) > > diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c > index 11c1fba..12b023a 100644 > --- a/fs/nfsd/nfs2acl.c > +++ b/fs/nfsd/nfs2acl.c > @@ -182,7 +182,8 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessarg > static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_getaclargs *argp) > { > - if (!(p = nfs2svc_decode_fh(p, &argp->fh))) > + p = nfs2svc_decode_fh(p, &argp->fh); > + if (!p) > return 0; > argp->mask = ntohl(*p); p++; > > @@ -197,7 +198,8 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p, > unsigned int base; > int n; > > - if (!(p = nfs2svc_decode_fh(p, &argp->fh))) > + p = nfs2svc_decode_fh(p, &argp->fh); > + if (!p) > return 0; > argp->mask = ntohl(*p++); > if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) || > @@ -218,7 +220,8 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p, > static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd_fhandle *argp) > { > - if (!(p = nfs2svc_decode_fh(p, &argp->fh))) > + p = nfs2svc_decode_fh(p, &argp->fh); > + if (!p) > return 0; > return xdr_argsize_check(rqstp, p); > } > @@ -226,7 +229,8 @@ static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p, > static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_accessargs *argp) > { > - if (!(p = nfs2svc_decode_fh(p, &argp->fh))) > + p = nfs2svc_decode_fh(p, &argp->fh); > + if (!p) > return 0; > argp->access = ntohl(*p++); > > diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c > index adc5f1b..2a514e2 100644 > --- a/fs/nfsd/nfs3acl.c > +++ b/fs/nfsd/nfs3acl.c > @@ -128,7 +128,8 @@ out: > static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_getaclargs *args) > { > - if (!(p = nfs3svc_decode_fh(p, &args->fh))) > + p = nfs3svc_decode_fh(p, &args->fh); > + if (!p) > return 0; > args->mask = ntohl(*p); p++; > > @@ -143,7 +144,8 @@ static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p, > unsigned int base; > int n; > > - if (!(p = nfs3svc_decode_fh(p, &args->fh))) > + p = nfs3svc_decode_fh(p, &args->fh); > + if (!p) > return 0; > args->mask = ntohl(*p++); > if (args->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) || > diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c > index de6e39e..e6c01e8 100644 > --- a/fs/nfsd/nfs3xdr.c > +++ b/fs/nfsd/nfs3xdr.c > @@ -278,7 +278,8 @@ void fill_post_wcc(struct svc_fh *fhp) > int > nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > return xdr_argsize_check(rqstp, p); > } > @@ -287,7 +288,8 @@ int > nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_sattrargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = decode_sattr3(p, &args->attrs); > > @@ -315,7 +317,8 @@ int > nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_accessargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > args->access = ntohl(*p++); > > @@ -330,7 +333,8 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p, > int v; > u32 max_blocksize = svc_max_payload(rqstp); > > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = xdr_decode_hyper(p, &args->offset); > > @@ -360,7 +364,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p, > unsigned int len, v, hdr, dlen; > u32 max_blocksize = svc_max_payload(rqstp); > > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = xdr_decode_hyper(p, &args->offset); > > @@ -535,7 +540,8 @@ int > nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_readlinkargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > args->buffer = page_address(*(rqstp->rq_next_page++)); > > @@ -558,7 +564,8 @@ int > nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_readdirargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = xdr_decode_hyper(p, &args->cookie); > args->verf = p; p += 2; > @@ -580,7 +587,8 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p, > int len; > u32 max_blocksize = svc_max_payload(rqstp); > > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = xdr_decode_hyper(p, &args->cookie); > args->verf = p; p += 2; > @@ -605,7 +613,8 @@ int > nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd3_commitargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > p = xdr_decode_hyper(p, &args->offset); > args->count = ntohl(*p++); > diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c > index 9c769a4..1ac306b 100644 > --- a/fs/nfsd/nfsxdr.c > +++ b/fs/nfsd/nfsxdr.c > @@ -214,7 +214,8 @@ nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy) > int > nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > return xdr_argsize_check(rqstp, p); > } > @@ -248,7 +249,8 @@ nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p, > { > unsigned int len; > int v; > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > > args->offset = ntohl(*p++); > @@ -281,7 +283,8 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p, > unsigned int len, hdr, dlen; > int v; > > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > > p++; /* beginoffset */ > @@ -355,7 +358,8 @@ nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p, > int > nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readlinkargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > args->buffer = page_address(*(rqstp->rq_next_page++)); > > @@ -391,7 +395,8 @@ int > nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p, > struct nfsd_readdirargs *args) > { > - if (!(p = decode_fh(p, &args->fh))) > + p = decode_fh(p, &args->fh); > + if (!p) > return 0; > args->cookie = ntohl(*p++); > args->count = ntohl(*p++); >