This is a note to let you know that I've just added the patch titled
NFSD: Replace READ* macros in nfsd4_decode_backchannel_ctl()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfsd-replace-read-macros-in-nfsd4_decode_backchannel.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 6693787fe1d0dcdddac14fb9ba5bc8ff11a13c40
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Tue Nov 3 13:14:35 2020 -0500
NFSD: Replace READ* macros in nfsd4_decode_backchannel_ctl()
[ Upstream commit 0f81d96098f8eb707afe2f8d5c3fe0f9316ef5ce ]
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 6f3c86bee6211..efd1504cd02b6 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -788,17 +788,6 @@ nfsd4_decode_access(struct nfsd4_compoundargs *argp,
return nfs_ok;
}
-static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, struct nfsd4_backchannel_ctl *bc)
-{
- DECODE_HEAD;
-
- READ_BUF(4);
- bc->bc_cb_program = be32_to_cpup(p++);
- nfsd4_decode_cb_sec(argp, &bc->bc_cb_sec);
-
- DECODE_TAIL;
-}
-
static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, struct nfsd4_bind_conn_to_session *bcts)
{
DECODE_HEAD;
@@ -1483,6 +1472,13 @@ nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_rel
return nfs_ok;
}
+static __be32 nfsd4_decode_backchannel_ctl(struct nfsd4_compoundargs *argp, struct nfsd4_backchannel_ctl *bc)
+{
+ if (xdr_stream_decode_u32(argp->xdr, &bc->bc_cb_program) < 0)
+ return nfserr_bad_xdr;
+ return nfsd4_decode_cb_sec(argp, &bc->bc_cb_sec);
+}
+
static __be32
nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
struct nfsd4_exchange_id *exid)
