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| author |   Keith Busch <keith.busch@intel.com> | 2016-07-21 21:40:28 -0600 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2016-07-25 12:52:47 -0500 |
| commit | e16b46605960bd071a3e26f316e0bb600ae91e37 (patch) | |
| tree | cbddd9ca52a24d2a414c48e375d89f8c36596087 /arch | |
| parent | Linux 4.7-rc2 (diff) | |
| download | linux-dev-e16b46605960bd071a3e26f316e0bb600ae91e37.tar.xz linux-dev-e16b46605960bd071a3e26f316e0bb600ae91e37.zip | |
PCI: Allow additional bus numbers for hotplug bridges
A user may hot add a switch requiring more than one bus to enumerate. This
previously required a system reboot if BIOS did not sufficiently pad the
bus resource, which they frequently don't do.
Add a kernel parameter so a user can specify the minimum number of bus
numbers to reserve for a hotplug bridge's subordinate buses so rebooting
won't be necessary.
The default is 1, which is equivalent to previous behavior.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions