| Message ID | 20230323090314.22431-7-cai.huoqing@linux.dev (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [1/8] net: liquidio: Remove redundant pci_clear_master | expand |
On 3/23/23 2:03 AM, Cai Huoqing wrote: > 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> Thanks! sln Acked-by: Shannon Nelson <shannon.nelson@amd.com> > --- > drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c > index e508f8eb43bf..b8678da1cce5 100644 > --- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c > +++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c > @@ -392,7 +392,6 @@ static void ionic_remove(struct pci_dev *pdev) > ionic_port_reset(ionic); > ionic_reset(ionic); > ionic_dev_teardown(ionic); > - pci_clear_master(pdev); > ionic_unmap_bars(ionic); > pci_release_regions(pdev); > pci_disable_device(pdev); > -- > 2.34.1 >
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c index e508f8eb43bf..b8678da1cce5 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c @@ -392,7 +392,6 @@ static void ionic_remove(struct pci_dev *pdev) ionic_port_reset(ionic); ionic_reset(ionic); ionic_dev_teardown(ionic); - pci_clear_master(pdev); ionic_unmap_bars(ionic); pci_release_regions(pdev); pci_disable_device(pdev);
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/ethernet/pensando/ionic/ionic_bus_pci.c | 1 - 1 file changed, 1 deletion(-)