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[coap] fix order of operations in TxParameters::IsValid() (#6027)

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To match CalculateInitialRetransmissionTimeout() implementation.
This commit is contained in:
Jonathan Hui
2021-01-05 09:35:45 -08:00
committed by GitHub
parent df047ed5cb
commit f64c597fc6
1 changed files with 1 additions and 1 deletions
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src/core/coap/coap.cpp
+1 -1
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@@ -950,8 +950,8 @@ bool TxParameters::IsValid(void) const
// Calulate exchange lifetime step by step and verify no overflow.
uint32_t tmp = Multiply(mAckTimeout, (1U << (mMaxRetransmit + 1)) - 1);
tmp /= mAckRandomFactorDenominator;
tmp = Multiply(tmp, mAckRandomFactorNumerator);
tmp /= mAckRandomFactorDenominator;
rval = (tmp != 0 && (tmp + mAckTimeout + 2 * kDefaultMaxLatency) > tmp);
}