powerpc/eeh: Keep PE during hotplug
authorGavin Shan <shangw@linux.vnet.ibm.com>
Wed, 24 Jul 2013 02:24:55 +0000 (10:24 +0800)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 24 Jul 2013 04:18:47 +0000 (14:18 +1000)
commit807a827d4e7455a40e8f56ec2a67c57a91cab9f7
tree35cfa0bc469d4fe436a81c7d9cc50966927625cf
parentc7b51bce636e4990662bb100bc17e1d4d6c02d34
powerpc/eeh: Keep PE during hotplug

When we do normal hotplug, the PE (shadow EEH structure) shouldn't be
kept around.

However, we need to keep it if the hotplug an artifial one caused by
EEH errors recovery.

Since we remove EEH device through the PCI hook pcibios_release_device(),
the flag "purge_pe" passed to various functions is meaningless. So the patch
removes the meaningless flag and introduce new flag "EEH_PE_KEEP"
to save the PE while doing hotplug during EEH error recovery.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/eeh.h
arch/powerpc/include/asm/pci-bridge.h
arch/powerpc/kernel/eeh.c
arch/powerpc/kernel/eeh_driver.c
arch/powerpc/kernel/eeh_pe.c
arch/powerpc/kernel/pci-hotplug.c