wifi: iwlwifi: pcie: don't synchronize IRQs from IRQ
[ Upstream commit 400f6ebb ] On older devices (before unified image!) we can end up calling stop_device from an rfkill interrupt. However, in stop_device we attempt to synchronize IRQs, which then of course deadlocks. Avoid this by checking the context, if running from the IRQ thread then don't synchronize. This wouldn't be correct on a new device since RSS is supported, but older devices only have a single interrupt/queue. Fixes: 37fb29bd ("wifi: iwlwifi: pcie: synchronize IRQs before NAPI") Reviewed-by:Miri Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
Kalle Valo <kvalo@kernel.org> Link: https://msgid.link/20231215111335.59aab00baed7.Iadfe154d6248e7f9dfd69522e5429dbbd72925d7@changeid Signed-off-by:
Sasha Levin <sashal@kernel.org>
parent
1f2f662c
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