Since the XDR field is fixed in size, the caller already knows how many
bytes were decoded, on success. Thus, xdr_stream_decode_opaque_fixed()
doesn't need to return that value. And, xdr_stream_decode_u32 and _u64
both return zero on success.
Signed-off-by: Sergey Bashirov <sergeybashirov@xxxxxxxxx>
---
Changes in v2:
- Rebased on nfsd-next
- Checks for negative return values are not touched
include/linux/sunrpc/xdr.h | 4 ++--
.../xdrgen/templates/C/typedef/decoder/fixed_length_opaque.j2 | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index e3358c630ba18..ffb699a02b17d 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -730,7 +730,7 @@ xdr_stream_decode_u64(struct xdr_stream *xdr, __u64 *ptr)
* @len: size of buffer pointed to by @ptr
*
* Return values:
- * On success, returns size of object stored in @ptr
+ * %0 on success
* %-EBADMSG on XDR buffer overflow
*/
static inline ssize_t
@@ -741,7 +741,7 @@ xdr_stream_decode_opaque_fixed(struct xdr_stream *xdr, void *ptr, size_t len)
if (unlikely(!p))
return -EBADMSG;
xdr_decode_opaque_fixed(p, ptr, len);
- return len;
+ return 0;
}
/**
diff --git a/tools/net/sunrpc/xdrgen/templates/C/typedef/decoder/fixed_length_opaque.j2 b/tools/net/sunrpc/xdrgen/templates/C/typedef/decoder/fixed_length_opaque.j2
index 8b4ff08c49e5e..bdc7bd24ffb13 100644
--- a/tools/net/sunrpc/xdrgen/templates/C/typedef/decoder/fixed_length_opaque.j2
+++ b/tools/net/sunrpc/xdrgen/templates/C/typedef/decoder/fixed_length_opaque.j2
@@ -13,5 +13,5 @@ xdrgen_decode_{{ name }}(struct xdr_stream *xdr, {{ classifier }}{{ name }} *ptr
{% if annotate %}
/* (fixed-length opaque) */
{% endif %}
- return xdr_stream_decode_opaque_fixed(xdr, ptr, {{ size }}) >= 0;
+ return xdr_stream_decode_opaque_fixed(xdr, ptr, {{ size }}) == 0;
};
--
2.43.0
