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IB/hfi1: Initialize bth1 in 16B rc ack builder 

It is possible the bth1 variable could be used uninitialized so going
ahead and giving it a default value.

Otherwise we leak stack memory to the network.

Fixes: 5b6cabb0db ("IB/hfi1: Add 16B RC/UC support")
Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
hifive-unleashed-5.1
Dennis Dalessandro 2017-11-14 04:34:23 -08:00 committed by Jason Gunthorpe
parent 4fbd8d194f
commit 8935780b9f
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/hfi1/rc.c
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@ -814,7 +814,7 @@ static inline void hfi1_make_rc_ack_16B(struct rvt_qp *qp,
struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
struct hfi1_16b_header *hdr = &opa_hdr->opah;
struct ib_other_headers *ohdr;
u32 bth0, bth1;
u32 bth0, bth1 = 0;
u16 len, pkey;
u8 becn = !!is_fecn;
u8 l4 = OPA_16B_L4_IB_LOCAL;