scsi: hpsa: disable device during shutdown (0d98ba8d) · Commits · 戴 / test

'Commit ("PCI/portdrv: Turn off PCIe services during shutdown")' has been added to kernel to shutdown pending PCIe port service interrupts during reboot so that a newly started kexec kernel wouldn't observe pending interrupts. pcie_port_device_remove() is disabling the root port and switches by calling pci_disable_device() after all PCIe service drivers are shutdown. This has been found to cause crashes on HP DL360 Gen9 machines during reboot due to hpsa driver not clearing the bus master bit during the shutdown procedure by calling pci_disable_device(). Disable device as part of the shutdown sequence. Signed-off-by:

Sinan Kaya <okaya@codeaurora.org> Link: https://bugzilla.kernel.org/show_bug.cgi?id=199779 Fixes: ("PCI/portdrv: Turn off PCIe services during shutdown") Cc: stable@vger.kernel.org Reported-by:

Ryan Finnie <ryan@finnie.org> Tested-by:

Don Brace <don.brace@microsemi.com> Acked-by:

Don Brace <don.brace@microsemi.com> Signed-off-by:

Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hpsa.c

+8 −2

Original line number	Original line	Diff line number	Diff line
	@@ -8869,7 +8869,7 @@ out:
	kfree(options);		kfree(options);
	}		}

	static void hpsa_shutdown(struct pci_dev *pdev)		static void __hpsa_shutdown(struct pci_dev *pdev)
	{		{
	struct ctlr_info *h;		struct ctlr_info *h;

	@@ -8884,6 +8884,12 @@ static void hpsa_shutdown(struct pci_dev *pdev)
	hpsa_disable_interrupt_mode(h); /* pci_init 2 */		hpsa_disable_interrupt_mode(h); /* pci_init 2 */
	}		}

			static void hpsa_shutdown(struct pci_dev *pdev)
			{
			__hpsa_shutdown(pdev);
			pci_disable_device(pdev);
			}

	static void hpsa_free_device_info(struct ctlr_info *h)		static void hpsa_free_device_info(struct ctlr_info *h)
	{		{
	int i;		int i;
	@@ -8927,7 +8933,7 @@ static void hpsa_remove_one(struct pci_dev *pdev)
	scsi_remove_host(h->scsi_host); /* init_one 8 */		scsi_remove_host(h->scsi_host); /* init_one 8 */
	/* includes hpsa_free_irqs - init_one 4 */		/* includes hpsa_free_irqs - init_one 4 */
	/* includes hpsa_disable_interrupt_mode - pci_init 2 */		/* includes hpsa_disable_interrupt_mode - pci_init 2 */
	hpsa_shutdown(pdev);		__hpsa_shutdown(pdev);

	hpsa_free_device_info(h); /* scan */		hpsa_free_device_info(h); /* scan */

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