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net/mlx4_core: Avoid repeated calls to pci enable/disable
Maintain the PCI status and provide wrappers for enabling and disabling the PCI device. Performing the actions more than once without doing its opposite results in warning logs. This occurred when EEH hotplugged the device causing a warning for disabling an already disabled device. Fixes: 2ba5fbd ('net/mlx4_core: Handle AER flow properly') Signed-off-by: Daniel Jurgens <[email protected]> Signed-off-by: Yishai Hadas <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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