Hi,
On 2023/7/20 05:13, Sui Jingfeng wrote:
Otherwise there 30+ noisy(useless) events got snooped. See below:
```
[ 0.246077] pci 0000:01:00.0: vgaarb: setting as boot VGA device
[ 0.246077] pci 0000:01:00.0: vgaarb: bridge control possible
[ 0.246077] pci 0000:01:00.0: vgaarb: VGA device added:
decodes=io+mem,owns=io+mem,locks=none
[ 0.246077] vgaarb: loaded
[ 0.294169] skl_uncore 0000:00:00.0: vgaarb: pci_notify: action=3
[ 0.294182] skl_uncore 0000:00:00.0: vgaarb: pci_notify: action=4
[ 0.301297] pcieport 0000:00:01.0: vgaarb: pci_notify: action=3
[ 0.301482] pcieport 0000:00:01.0: vgaarb: pci_notify: action=4
[ 0.301488] pcieport 0000:00:1c.0: vgaarb: pci_notify: action=3
[ 0.301705] pcieport 0000:00:1c.0: vgaarb: pci_notify: action=4
[ 1.806445] xhci_hcd 0000:00:14.0: vgaarb: pci_notify: action=3
[ 1.810976] ahci 0000:00:17.0: vgaarb: pci_notify: action=3
[ 1.824383] xhci_hcd 0000:00:14.0: vgaarb: pci_notify: action=4
[ 1.857470] ahci 0000:00:17.0: vgaarb: pci_notify: action=4
[ 4.692700] intel_pch_thermal 0000:00:14.2: vgaarb: pci_notify:
action=3
[ 4.693110] intel_pch_thermal 0000:00:14.2: vgaarb: pci_notify:
action=4
[ 4.746712] i801_smbus 0000:00:1f.4: vgaarb: pci_notify: action=3
[ 4.747212] pci 0000:00:1f.1: vgaarb: pci_notify: action=0
[ 4.747227] pci 0000:00:1f.1: vgaarb: pci_notify: action=1
[ 4.747250] pci 0000:00:1f.1: vgaarb: pci_notify: action=2
[ 4.749098] i801_smbus 0000:00:1f.4: vgaarb: pci_notify: action=4
[ 4.799217] mei_me 0000:00:16.0: vgaarb: pci_notify: action=3
[ 4.802503] mei_me 0000:00:16.0: vgaarb: pci_notify: action=4
[ 4.874880] intel-lpss 0000:00:15.0: vgaarb: pci_notify: action=3
[ 4.881227] intel-lpss 0000:00:15.0: vgaarb: pci_notify: action=4
[ 4.881240] intel-lpss 0000:00:15.1: vgaarb: pci_notify: action=3
[ 4.887578] intel-lpss 0000:00:15.1: vgaarb: pci_notify: action=4
[ 4.985796] r8169 0000:02:00.0: vgaarb: pci_notify: action=3
[ 4.991862] r8169 0000:02:00.0: vgaarb: pci_notify: action=4
[ 5.404835] snd_hda_intel 0000:00:1f.3: vgaarb: pci_notify: action=3
[ 5.405175] snd_hda_intel 0000:00:1f.3: vgaarb: pci_notify: action=4
[ 5.405401] snd_hda_intel 0000:01:00.1: vgaarb: pci_notify: action=3
[ 5.405973] snd_hda_intel 0000:01:00.1: vgaarb: pci_notify: action=4
[ 10.793665] i915 0000:00:02.0: vgaarb: pci_notify: action=3
[ 11.201384] i915 0000:00:02.0: vgaarb: pci_notify: action=4
[ 16.135842] amdgpu 0000:01:00.0: vgaarb: pci_notify: action=3
[ 16.140458] amdgpu 0000:01:00.0: vgaarb: deactivate vga console
[ 16.638564] amdgpu 0000:01:00.0: vgaarb: pci_notify: action=4
```
After apply my patch, this events are still will notify me, it is just
that if we found it is irrelevant, we will return immediately.
No further process is needed.
