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authorDawid Lukwinski <dawid.lukwinski@intel.com>2022-07-15 14:45:41 -0700
committerJakub Kicinski <kuba@kernel.org>2022-07-18 20:13:22 -0700
commitf838a63369818faadec4ad1736cfbd20ab5da00e (patch)
treeaaa043dcb1a1ae422585173c20cacec4cddde9d1 /drivers/hv
parent3696c952da0733b843c8da3441345055b1cbacd9 (diff)
i40e: Fix erroneous adapter reinitialization during recovery process
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: 4ff0ee1af016 ("i40e: Introduce recovery mode support") Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com> Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://lore.kernel.org/r/20220715214542.2968762-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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