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[IB] Fix RMPP receive length calculation 

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

Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
hifive-unleashed-5.1
Hal Rosenstock 2005-09-21 12:33:09 -07:00 committed by Roland Dreier
parent 972d512a17
commit f2065e4242
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/core/mad_rmpp.c
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@ -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;