CHROMIUM: iwl7000: mvm: avoid possible deadlock in TX path
iwl_mvm_tx_mpdu() may run from iwl_mvm_add_new_dqa_stream_wk(), where
soft-IRQs aren't disabled. In this case, it may hold the station lock
and be interrupted by a soft-IRQ that also wants to acquire said lock,
leading to a deadlock.
Fix it by disabling soft-IRQs in iwl_mvm_add_new_dqa_stream_wk().
BUG=b:130781994
TEST=TBD
Change-Id: I4679b627a1c23fb376ef80254755b226524e885d
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
iwl7000-tree: e4ecc1ca6bcbb73e06a249cfd4abe55f2f1bda86
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1637694
Commit-Queue: Kirtika Ruchandani <kirtika@chromium.org>
Reviewed-by: Kirtika Ruchandani <kirtika@chromium.org>
Tested-by: Kirtika Ruchandani <kirtika@chromium.org>
(cherry picked from commit 3636178586f07ce9582cf740a1c41ca6f53b590f)
Signed-off-by: Kirtika Ruchandani <kirtika@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1682871
1 file changed
