diff options
| author | Yinghai Lu <[email protected]> | 2013-05-07 11:06:03 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2013-05-17 14:12:06 -0600 |
| commit | 3f327e39b4b8f760c331bb2836735be6d83fbf53 (patch) | |
| tree | c2ebbf36764c554c31d82a82a6afb174c8e2b698 /lib/memory-notifier-error-inject.c | |
| parent | f722406faae2d073cc1d01063d1123c35425939e (diff) | |
PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
When a PCI host bridge device receives a Bus Check notification, we
must re-enumerate starting with the bridge to discover changes (devices
that have been added or removed).
Prior to 668192b678 ("PCI: acpiphp: Move host bridge hotplug to
pci_root.c"), this happened in _handle_hotplug_event_bridge(). After that
commit, _handle_hotplug_event_bridge() is not installed for host bridges,
and the host bridge notify handler, _handle_hotplug_event_root() did not
re-enumerate.
This patch adds re-enumeration to _handle_hotplug_event_root().
This fixes cases where we don't notice the addition or removal of
PCI devices, e.g., the PCI-to-USB ExpressCard in the bugzilla below.
[bhelgaas: changelog, references]
Reference: https://lkml.kernel.org/r/CAAh6nkmbKR3HTqm5ommevsBwhL_u0N8Rk7Wsms_LfP=nBgKNew@mail.gmail.com
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=57961
Reported-by: Gavin Guo <[email protected]>
Tested-by: Gavin Guo <[email protected]>
Signed-off-by: Yinghai Lu <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Jiang Liu <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
CC: [email protected] # v3.9+
Diffstat (limited to 'lib/memory-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions