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| author | Johannes Berg <johannes.berg@intel.com> | 2020-04-17 10:08:09 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-04-21 15:39:00 +0300 |
| commit | b98b33d5560a2d940f3b80f6768a6177bf3dfbc0 (patch) | |
| tree | e771347a101bf4b9a8fedd561c35e80f5c3c7e13 /drivers/net/wireless/intel/iwlwifi/mvm/rx.c | |
| parent | a176e114ace4cca7df0e34b4bd90c301cdc6d653 (diff) | |
| download | linux-b98b33d5560a2d940f3b80f6768a6177bf3dfbc0.tar.gz linux-b98b33d5560a2d940f3b80f6768a6177bf3dfbc0.tar.bz2 linux-b98b33d5560a2d940f3b80f6768a6177bf3dfbc0.zip | |
iwlwifi: pcie: actually release queue memory in TVQM
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@intel.com>
Fixes: 6b35ff91572f ("iwlwifi: pcie: introduce a000 TX queues management")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200417100405.f5f4c4193ec1.Id5feebc9b4318041913a9c89fc1378bb5454292c@changeid
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rx.c')
0 files changed, 0 insertions, 0 deletions