diff mbox series

[3/3] can: kvaser_pciefd: Remove redundant pci_clear_master

Message ID 20230323113318.9473-3-cai.huoqing@linux.dev
State New
Headers
Series [1/3] can: c_can: Remove redundant pci_clear_master |

Commit Message

Cai Huoqing March 23, 2023, 11:33 a.m. UTC 
  Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
	u16 pci_command;

	pci_read_config_word(dev, PCI_COMMAND, &pci_command);
	if (pci_command & PCI_COMMAND_MASTER) {
		pci_command &= ~PCI_COMMAND_MASTER;
		pci_write_config_word(dev, PCI_COMMAND, pci_command);
	}

	pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
---
 drivers/net/can/kvaser_pciefd.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index bcad11709bc9..53e8a914c88b 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -1907,7 +1907,6 @@  static void kvaser_pciefd_remove(struct pci_dev *pdev)
 
 	free_irq(pcie->pci->irq, pcie);
 
-	pci_clear_master(pdev);
 	pci_iounmap(pdev, pcie->reg_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);