From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 19 Jul 2022 09:18:35 -0400
Subject: [PATCH] SUNRPC: Fix xdr_encode_bool()
Git-commit: c770f31d8f580ed4b965c64f924ec1cc50e41734
Patch-mainline: v6.0
References: git-fixes

I discovered that xdr_encode_bool() was returning the same address
that was passed in the @p parameter. The documenting comment states
that the intent is to return the address of the next buffer
location, just like the other "xdr_encode_*" helpers.

The result was the encoded results of NFSv3 PATHCONF operations were
not formed correctly.

Fixes: ded04a587f6c ("NFSD: Update the NFSv3 PATHCONF3res encoder to use struct xdr_stream")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Acked-by: NeilBrown <neilb@suse.com>

---
 include/linux/sunrpc/xdr.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -404,8 +404,8 @@ static inline int xdr_stream_encode_item
  */
 static inline __be32 *xdr_encode_bool(__be32 *p, u32 n)
 {
-	*p = n ? xdr_one : xdr_zero;
-	return p++;
+	*p++ = n ? xdr_one : xdr_zero;
+	return p;
 }
 
 /**