diff options
| author | Cai Huoqing <cai.huoqing@linux.dev> | 2023-03-23 11:35:49 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2023-04-08 10:39:33 +0300 |
| commit | 248ed9e227e6cf59acb1aaf3aa30d530a0232c1a (patch) | |
| tree | 4ea13a2817421646bdb44888efda657650cd51e4 /drivers/accel | |
| parent | 4d877b1a6e855d1c8685fa0e27ad7a521b31b6ca (diff) | |
| download | linux-248ed9e227e6cf59acb1aaf3aa30d530a0232c1a.tar.xz | |
accel/habanalabs: 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>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/habanalabs/common/device.c | 1 | ||||
| -rw-r--r-- | drivers/accel/habanalabs/common/pci/pci.c | 2 |
2 files changed, 0 insertions, 3 deletions
diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c index 713005998cbc..2fb1e2ec3a83 100644 --- a/drivers/accel/habanalabs/common/device.c +++ b/drivers/accel/habanalabs/common/device.c @@ -1271,7 +1271,6 @@ int hl_device_resume(struct hl_device *hdev) return 0; disable_device: - pci_clear_master(hdev->pdev); pci_disable_device(hdev->pdev); return rc; diff --git a/drivers/accel/habanalabs/common/pci/pci.c b/drivers/accel/habanalabs/common/pci/pci.c index d1f4c695baf2..191e0e3cf3a5 100644 --- a/drivers/accel/habanalabs/common/pci/pci.c +++ b/drivers/accel/habanalabs/common/pci/pci.c @@ -420,7 +420,6 @@ int hl_pci_init(struct hl_device *hdev) unmap_pci_bars: hl_pci_bars_unmap(hdev); disable_device: - pci_clear_master(pdev); pci_disable_device(pdev); return rc; @@ -436,6 +435,5 @@ void hl_pci_fini(struct hl_device *hdev) { hl_pci_bars_unmap(hdev); - pci_clear_master(hdev->pdev); pci_disable_device(hdev->pdev); } |