Commit 2213fb14 authored by Wei Yang's avatar Wei Yang Committed by Benjamin Herrenschmidt

powerpc/eeh: Skip eeh sysfs when eeh is disabled

When eeh is not enabled, and hotplug two pci devices on the same bus, eeh
related sysfs would be added twice for the first added pci device. Since the
eeh_dev is not created when eeh is not enabled.

This patch adds the check, if eeh is not enabled, eeh sysfs will not be
created.

After applying this patch, following warnings are reduced:

sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:00.0/eeh_mode'
sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:00.0/eeh_config_addr'
sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:00.0/eeh_pe_config_addr'
Signed-off-by: default avatarWei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: default avatarGavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 5d73320a
...@@ -59,6 +59,9 @@ void eeh_sysfs_add_device(struct pci_dev *pdev) ...@@ -59,6 +59,9 @@ void eeh_sysfs_add_device(struct pci_dev *pdev)
struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev); struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
int rc=0; int rc=0;
if (!eeh_enabled())
return;
if (edev && (edev->mode & EEH_DEV_SYSFS)) if (edev && (edev->mode & EEH_DEV_SYSFS))
return; return;
......
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