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iwlwifi: mvm: fix 32-bit build in FTM

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[ Upstream commit 8b0f92549f2c2458200935c12a2e2a6e80234cf5 ]

On a 32-bit build, the division here needs to be done
using do_div(), otherwise the compiler will try to call
a function that doesn't exist, thus failing to build.

Fixes: b68bd2e314 ("iwlwifi: mvm: Add FTM initiator RTT smoothing logic")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219111352.e56cbf614a4d.Ib98004ccd2c7a55fd883a8ea7eebd810f406dec6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg
2021-12-19 11:14:18 +02:00
committed by Greg Kroah-Hartman
parent 86b0122d26
commit a750fcd604
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
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@@ -967,7 +967,8 @@ static void iwl_mvm_ftm_rtt_smoothing(struct iwl_mvm *mvm,
overshoot = IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT; overshoot = IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT;
alpha = IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA; alpha = IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA;
rtt_avg = (alpha * rtt + (100 - alpha) * resp->rtt_avg) / 100; rtt_avg = alpha * rtt + (100 - alpha) * resp->rtt_avg;
do_div(rtt_avg, 100);
IWL_DEBUG_INFO(mvm, IWL_DEBUG_INFO(mvm,
"%pM: prev rtt_avg=%lld, new rtt_avg=%lld, rtt=%lld\n", "%pM: prev rtt_avg=%lld, new rtt_avg=%lld, rtt=%lld\n",