ntb: intel: Remove redundant pci_clear_master
authorCai Huoqing <cai.huoqing@linux.dev>
Fri, 24 Mar 2023 01:32:20 +0000 (09:32 +0800)
committerJon Mason <jdmason@kudzu.us>
Sat, 8 Jul 2023 15:02:37 +0000 (11:02 -0400)
commitd353fb4b70402f487c1c68bc0a86f526dc8384f3
treebb11161159e2a596962f21fcf2c748228e446a51
parentf2748c6d768bbf3448da883a69e254816d7408b4
ntb: intel: 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>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
drivers/ntb/hw/intel/ntb_hw_gen1.c