ntb_hw_amd: Remove redundant pci_clear_master
authorCai Huoqing <cai.huoqing@linux.dev>
Fri, 24 Mar 2023 01:32:18 +0000 (09:32 +0800)
committerJon Mason <jdmason@kudzu.us>
Sat, 8 Jul 2023 15:02:37 +0000 (11:02 -0400)
commitda6b4dc49e3c10e13adfb79fc41c098bacf1dc09
tree1517b6fd5284b1cc431d7264e677a106cdd17c8b
parentcb2a6d17353452e893194ce1b4e2699fcb24b955
ntb_hw_amd: Remove redundant pci_clear_master

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>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
drivers/ntb/hw/amd/ntb_hw_amd.c