Luca Coelho <luca@xxxxxxxxx> wrote: > From: Johannes Berg <johannes.berg@xxxxxxxxx> > > The iwl_trans_pcie_dyn_txq_free() function only releases the frames > that may be left on the queue by calling iwl_pcie_gen2_txq_unmap(), > but doesn't actually free the DMA ring or byte-count tables for the > queue. This leads to pretty large memory leaks (at least before my > queue size improvements), in particular in monitor/sniffer mode on > channel hopping since this happens on every channel change. > > This was also now more evident after the move to a DMA pool for the > byte count tables, showing messages such as > > BUG iwlwifi:bc (...): Objects remaining in iwlwifi:bc on __kmem_cache_shutdown() > > This fixes https://bugzilla.kernel.org/show_bug.cgi?id=206811. > > Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> > Fixes: 6b35ff91572f ("iwlwifi: pcie: introduce a000 TX queues management") > Cc: stable@xxxxxxxxxxxxxxx # v4.14+ > Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> 6 patches applied to wireless-drivers.git, thanks. b98b33d5560a iwlwifi: pcie: actually release queue memory in TVQM 290d5e495183 iwlwifi: mvm: beacon statistics shouldn't go backwards d8d663970234 iwlwifi: pcie: indicate correct RB size to device e5b72e3bc476 iwlwifi: mvm: limit maximum queue appropriately 38af8d5a90a8 iwlwifi: mvm: Do not declare support for ACK Enabled Aggregation e6d419f94331 iwlwifi: mvm: fix inactive TID removal return value usage -- https://patchwork.kernel.org/patch/11494275/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
