lkml.org 
[lkml]   [2023]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/5] wifi: ath12k: Remove redundant pci_clear_master
On Thu, Mar 23, 2023 at 07:26:11PM +0800, Cai Huoqing 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@linux.dev>

Reviewed-by: Simon Horman <simon.horman@corigine.com>

\
 
 \ /
  Last update: 2023-03-27 01:17    [W:0.133 / U:2.284 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site