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