[PATCH for 4.9 18/59] igb: re-assign hw address pointer on reset after PCI error

From: Guilherme G Piccoli [ Upstream commit 69b97cf6dbce7403845a28bbc75d57f5be7b12ac ] Whenever the igb driver detects the result of a read operation returns a value composed only by F's (like 0x), it will detach the net_device, clear the hw_addr pointer and

[PATCH for 4.9 18/59] igb: re-assign hw address pointer on reset after PCI error

From: Guilherme G Piccoli [ Upstream commit 69b97cf6dbce7403845a28bbc75d57f5be7b12ac ] Whenever the igb driver detects the result of a read operation returns a value composed only by F's (like 0x), it will detach the net_device, clear the hw_addr pointer and warn to the user that