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IB/hfi1: Use bool in process_ecn

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The process_ecn intends to return a bool value. However it is doing
so incorrectly by ANDing the fecn mask. The fecn bit is bit 31. Bool is
not a native data type and is up to the compiler to implement how it
sees fit. It is conceivable that this upper bit gets washed out.

Fix by converting to a bool properly.

Cc: stable@vger.kernel.org
Fixes: Commit fd2b562edca6 ("IB/hfi1: Pull FECN/BECN processing to a common place")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dennis Dalessandro 2017-04-09 10:17:30 -07:00 committed by Doug Ledford
parent 1222026764
commit 4608e4c8f2
2 changed files with 3 additions and 2 deletions
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2
drivers/infiniband/hw/hfi1/hfi.h
View File

@ -1660,7 +1660,7 @@ static inline bool process_ecn(struct rvt_qp *qp, struct hfi1_packet *pkt,
bth1 = be32_to_cpu(ohdr->bth[1]);
if (unlikely(bth1 & (IB_BECN_SMASK | IB_FECN_SMASK))) {
hfi1_process_ecn_slowpath(qp, pkt, do_cnp);
return bth1 & IB_FECN_SMASK;
return !!(bth1 & IB_FECN_SMASK);
}
return false;
}

3
drivers/infiniband/hw/hfi1/rc.c
View File

@ -1930,7 +1930,8 @@ void hfi1_rc_rcv(struct hfi1_packet *packet)
int diff;
struct ib_reth *reth;
unsigned long flags;
int ret, is_fecn = 0;
int ret;
bool is_fecn = false;
bool copy_last = false;
u32 rkey;