From: Arnd Bergmann Date: Tue, 12 May 2015 21:31:29 +0000 (+0200) Subject: nfsd: work around a gcc-5.1 warning X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6ac75368e1a658903cf57b2bbf66e60d34f55558;p=linux-beck.git nfsd: work around a gcc-5.1 warning gcc-5.0 warns about a potential uninitialized variable use in nfsd: fs/nfsd/nfs4state.c: In function 'nfsd4_process_open2': fs/nfsd/nfs4state.c:3781:3: warning: 'old_deny_bmap' may be used uninitialized in this function [-Wmaybe-uninitialized] reset_union_bmap_deny(old_deny_bmap, stp); ^ fs/nfsd/nfs4state.c:3760:16: note: 'old_deny_bmap' was declared here unsigned char old_deny_bmap; ^ This is a false positive, the code path that is warned about cannot actually be reached. This adds an initialization for the variable to make the warning go away. Signed-off-by: Arnd Bergmann Signed-off-by: J. Bruce Fields --- diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 86f5c273c9ec..aef7c9bb6114 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3861,7 +3861,7 @@ static __be32 nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *cur_fh, struct nfs4_ol_stateid *stp, struct nfsd4_open *open) { __be32 status; - unsigned char old_deny_bmap; + unsigned char old_deny_bmap = stp->st_deny_bmap; if (!test_access(open->op_share_access, stp)) return nfs4_get_vfs_file(rqstp, fp, cur_fh, stp, open); @@ -3870,7 +3870,6 @@ nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *c spin_lock(&fp->fi_lock); status = nfs4_file_check_deny(fp, open->op_share_deny); if (status == nfs_ok) { - old_deny_bmap = stp->st_deny_bmap; set_deny(open->op_share_deny, stp); fp->fi_share_deny |= (open->op_share_deny & NFS4_SHARE_DENY_BOTH);