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Commit 55a2a28b authored by Dawid Lukwinski's avatar Dawid Lukwinski Committed by Greg Kroah-Hartman
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i40e: Fix erroneous adapter reinitialization during recovery process

[ Upstream commit f838a633 ]

Fix an issue when driver incorrectly detects state
of recovery process and erroneously reinitializes interrupts,
which results in a kernel error and call trace message.

The issue was caused by a combination of two factors:
1. Assuming the EMP reset issued after completing
firmware recovery means the whole recovery process is complete.
2. Erroneous reinitialization of interrupt vector after detecting
the above mentioned EMP reset.

Fixes (1) by changing how recovery state change is detected
and (2) by adjusting the conditional expression to ensure using proper
interrupt reinitialization method, depending on the situation.

Fixes: 4ff0ee1a

 ("i40e: Introduce recovery mode support")
Signed-off-by: default avatarDawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: default avatarJan Sokolowski <jan.sokolowski@intel.com>
Tested-by: default avatarKonrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220715214542.2968762-1-anthony.l.nguyen@intel.com
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent d88d59fa
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