[PATCH] accel/habanalabs: Remove redundant pci_clear_master
Stanislaw Gruszka
stanislaw.gruszka at linux.intel.com
Thu Mar 23 10:29:52 UTC 2023
On Thu, Mar 23, 2023 at 04:35:49PM +0800, 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 at linux.dev>
LGTM
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka at linux.intel.com>
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