Commit f2065e42 authored by Hal Rosenstock's avatar Hal Rosenstock Committed by Roland Dreier
Browse files

[IB] Fix RMPP receive length calculation 



Based on simplification idea from Sean Hefty <sean.hefty@intel.com>

Signed-off-by: default avatarHal Rosenstock <halr@voltaire.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 972d512a

drivers/infiniband/core/mad_rmpp.c

+2 −2
Original line number Diff line number Diff line
@@ -412,8 +412,8 @@ static inline int get_mad_len(struct mad_rmpp_recv *rmpp_recv) 


	hdr_size = data_offset(rmpp_mad->mad_hdr.mgmt_class);

	data_size = sizeof(struct ib_rmpp_mad) - hdr_size;

	pad = data_size - be32_to_cpu(rmpp_mad->rmpp_hdr.paylen_newwin);

	if (pad > data_size || pad < 0)

	pad = IB_MGMT_RMPP_DATA - be32_to_cpu(rmpp_mad->rmpp_hdr.paylen_newwin);

	if (pad > IB_MGMT_RMPP_DATA || pad < 0)

		pad = 0;



	return hdr_size + rmpp_recv->seg_num * data_size - pad;

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