[PATCH 4/5] wifi: rtw88: Remove redundant pci_clear_master

Kalle Valo kvalo at kernel.org
Fri Mar 31 07:49:14 PDT 2023


Cai Huoqing <cai.huoqing at linux.dev> 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>
> Reviewed-by: Simon Horman <simon.horman at corigine.com>
> Reviewed-by: Ping-Ke Shih <pkshih at realtek.com>

Patch applied to wireless-next.git, thanks.

e665c6d67e54 wifi: rtw88: Remove redundant pci_clear_master

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230323112613.7550-4-cai.huoqing@linux.dev/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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