diff mbox series

[8/8] ethernet: ec_bhf: Remove redundant pci_clear_master

Message ID 20230323090314.22431-8-cai.huoqing@linux.dev (mailing list archive)
State Accepted
Commit 3228150ba688b8cddc7459e5ae9a09bc2d2e47be
Delegated to: Netdev Maintainers
Headers show
Series [1/8] net: liquidio: Remove redundant pci_clear_master | expand

Checks

Context Check Description
netdev/series_format warning Series does not have a cover letter; Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 18 this patch: 18
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 18 this patch: 18
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 14 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Cai Huoqing March 23, 2023, 9:03 a.m. UTC
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/ec_bhf.c | 2 --
 1 file changed, 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ec_bhf.c b/drivers/net/ethernet/ec_bhf.c
index 46e3a05e9582..c2c5c589a5e3 100644
--- a/drivers/net/ethernet/ec_bhf.c
+++ b/drivers/net/ethernet/ec_bhf.c
@@ -558,7 +558,6 @@  static int ec_bhf_probe(struct pci_dev *dev, const struct pci_device_id *id)
 err_release_regions:
 	pci_release_regions(dev);
 err_disable_dev:
-	pci_clear_master(dev);
 	pci_disable_device(dev);
 
 	return err;
@@ -577,7 +576,6 @@  static void ec_bhf_remove(struct pci_dev *dev)
 	free_netdev(net_dev);
 
 	pci_release_regions(dev);
-	pci_clear_master(dev);
 	pci_disable_device(dev);
 }