[PATCH 1/5] wifi: ath11k: Remove redundant pci_clear_master

Kalle Valo kvalo at kernel.org
Wed Apr 12 03:03:36 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>
> Signed-off-by: Kalle Valo <quic_kvalo at quicinc.com>

3 patches applied to ath-next branch of ath.git, thanks.

f812e2a9f85d wifi: ath11k: Remove redundant pci_clear_master
76008fc13b09 wifi: ath10k: Remove redundant pci_clear_master
b9235aef8492 wifi: ath12k: Remove redundant pci_clear_master

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230323112613.7550-1-cai.huoqing@linux.dev/

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




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