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| author | Ethan Zhao <haifeng.zhao@linux.intel.com> | 2024-03-05 15:21:14 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-03-06 19:35:53 +0300 |
| commit | 39714fd73c6b60a8d27bcc5b431afb0828bf4434 (patch) | |
| tree | 41ae364edc1d2d3ba326ad6bec21322a18283b66 /tools/perf/scripts/python/stackcollapse.py | |
| parent | def054b01a867822254e1dda13d587f5c7a99e2a (diff) | |
| download | linux-39714fd73c6b60a8d27bcc5b431afb0828bf4434.tar.xz | |
PCI: Make pci_dev_is_disconnected() helper public for other drivers
Make pci_dev_is_disconnected() public so that it can be called from
Intel VT-d driver to quickly fix/workaround the surprise removal
unplug hang issue for those ATS capable devices on PCIe switch downstream
hotplug capable ports.
Beside pci_device_is_present() function, this one has no config space
space access, so is light enough to optimize the normal pure surprise
removal and safe removal flow.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Tested-by: Haorong Ye <yehaorong@bytedance.com>
Signed-off-by: Ethan Zhao <haifeng.zhao@linux.intel.com>
Link: https://lore.kernel.org/r/20240301080727.3529832-2-haifeng.zhao@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions