# # RxRPC session sockets # config AF_RXRPC tristate "RxRPC session sockets" depends on INET select CRYPTO select KEYS help Say Y or M here to include support for RxRPC session sockets (just the transport part, not the presentation part: (un)marshalling is left to the application). These are used for AFS kernel filesystem and userspace utilities. This module at the moment only supports client operations and is currently incomplete. See Documentation/networking/rxrpc.txt. config AF_RXRPC_IPV6 bool "IPv6 support for RxRPC" depends on (IPV6 = m && AF_RXRPC = m) || (IPV6 = y && AF_RXRPC) help Say Y here to allow AF_RXRPC to use IPV6 UDP as well as IPV4 UDP as its network transport. config AF_RXRPC_INJECT_LOSS bool "Inject packet loss into RxRPC packet stream" depends on AF_RXRPC help Say Y here to inject packet loss by discarding some received and some transmitted packets. config AF_RXRPC_DEBUG bool "RxRPC dynamic debugging" depends on AF_RXRPC help Say Y here to make runtime controllable debugging messages appear. See Documentation/networking/rxrpc.txt. config RXKAD bool "RxRPC Kerberos security" depends on AF_RXRPC select CRYPTO select CRYPTO_MANAGER select CRYPTO_BLKCIPHER select CRYPTO_PCBC select CRYPTO_FCRYPT help Provide kerberos 4 and AFS kaserver security handling for AF_RXRPC through the use of the key retention service. See Documentation/networking/rxrpc.txt. -next plumbingsTobias Klauser
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authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /net/rxrpc
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'net/rxrpc')