Hello Souptick- This looks like the same error that Coverity caught earlier this week. AFAIK Bruce intends to address this issue with a replacement patch:
https://lore.kernel.org/linux-nfs/20201125164738.ga7...@fieldses.org/ > On Nov 28, 2020, at 8:50 AM, Souptick Joarder <jrdr.li...@gmail.com> wrote: > > Kernel test robot throws below warning - > >>> fs/nfsd/nfs3xdr.c:299:6: warning: variable 'err' is used >>> uninitialized whenever 'if' condition is false >>> [-Wsometimes-uninitialized] > if (!v4 || !inode->i_sb->s_export_op->fetch_iversion) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > fs/nfsd/nfs3xdr.c:304:6: note: uninitialized use occurs here > if (err) { > ^~~ > fs/nfsd/nfs3xdr.c:299:2: note: remove the 'if' if its condition is > always true > if (!v4 || !inode->i_sb->s_export_op->fetch_iversion) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > fs/nfsd/nfs3xdr.c:293:12: note: initialize the variable 'err' to > silence this warning > __be32 err; > ^ > = 0 > 1 warning generated. > > Initialize err = 0 to silence this warning. > > Reported-by: kernel test robot <l...@intel.com> > Signed-off-by: Souptick Joarder <jrdr.li...@gmail.com> > --- > fs/nfsd/nfs3xdr.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c > index abb1608..47aeaee 100644 > --- a/fs/nfsd/nfs3xdr.c > +++ b/fs/nfsd/nfs3xdr.c > @@ -290,7 +290,7 @@ void fill_post_wcc(struct svc_fh *fhp) > { > bool v4 = (fhp->fh_maxsize == NFS4_FHSIZE); > struct inode *inode = d_inode(fhp->fh_dentry); > - __be32 err; > + __be32 err = 0; > > if (fhp->fh_post_saved) > printk("nfsd: inode locked twice during operation.\n"); > -- > 1.9.1 > -- Chuck Lever
