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| author | Jiang Liu <liuj97@gmail.com> | 2013-04-12 07:44:18 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-12 23:38:25 +0200 |
| commit | 3a0e40beefc20852191ed65d53e1b82d95ac11b8 (patch) | |
| tree | 88016bbede6794b6635d86e19c1cd09b56e295e4 /drivers/pci/hotplug/acpiphp.h | |
| parent | PCI: acpiphp: Use list_for_each_entry_safe() in acpiphp_sanitize_bus() (diff) | |
| download | linux-3a0e40beefc20852191ed65d53e1b82d95ac11b8.tar.xz linux-3a0e40beefc20852191ed65d53e1b82d95ac11b8.zip | |
PCI: acpiphp: Remove all functions even if function 0 doesn't exist
Currently function disable_device() detects slot state by checking
existence of PCI function 0. It's unreliable because the PCI device
for function 0 may be removed through the sysfs interface. If that
happens, it will cause powering off a hotplug slot without destroying
all PCI devices.
On the other hand, it won't hurt us except wasting some computation
power if the check is removed, because all code of disable_device()
is self-protected. So remove the check.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Diffstat (limited to 'drivers/pci/hotplug/acpiphp.h')
0 files changed, 0 insertions, 0 deletions