#ifndef LLC_S_EV_H #define LLC_S_EV_H /* * Copyright (c) 1997 by Procom Technology,Inc. * 2001 by Arnaldo Carvalho de Melo * * This program can be redistributed or modified under the terms of the * GNU General Public License as published by the Free Software Foundation. * This program is distributed without any warranty or implied warranty * of merchantability or fitness for a particular purpose. * * See the GNU General Public License for more details. */ #include /* Defines SAP component events */ /* Types of events (possible values in 'ev->type') */ #define LLC_SAP_EV_TYPE_SIMPLE 1 #define LLC_SAP_EV_TYPE_CONDITION 2 #define LLC_SAP_EV_TYPE_PRIM 3 #define LLC_SAP_EV_TYPE_PDU 4 /* command/response PDU */ #define LLC_SAP_EV_TYPE_ACK_TMR 5 #define LLC_SAP_EV_TYPE_RPT_STATUS 6 #define LLC_SAP_EV_ACTIVATION_REQ 1 #define LLC_SAP_EV_RX_UI 2 #define LLC_SAP_EV_UNITDATA_REQ 3 #define LLC_SAP_EV_XID_REQ 4 #define LLC_SAP_EV_RX_XID_C 5 #define LLC_SAP_EV_RX_XID_R 6 #define LLC_SAP_EV_TEST_REQ 7 #define LLC_SAP_EV_RX_TEST_C 8 #define LLC_SAP_EV_RX_TEST_R 9 #define LLC_SAP_EV_DEACTIVATION_REQ 10 struct llc_sap_state_ev { u8 prim; u8 prim_type; u8 type; u8 reason; u8 ind_cfm_flag; struct llc_addr saddr; struct llc_addr daddr; }; static __inline__ struct llc_sap_state_ev *llc_sap_ev(struct sk_buff *skb) { return (struct llc_sap_state_ev *)skb->cb; } struct llc_sap; typedef int (*llc_sap_ev_t)(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_activation_req(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_rx_ui(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_unitdata_req(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_xid_req(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_rx_xid_c(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_rx_xid_r(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_test_req(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_rx_test_c(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb); int llc_sap_ev_deactivation_req(struct llc_sap *sap, struct sk_buff *skb); #endif /* LLC_S_EV_H */ es.h?h=nds-private-remove&id=030305d69fc6963c16003f50d7e8d74b02d0a143'>diff
path: root/include/net/fib_rules.h
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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 /include/net/fib_rules.h
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 'include/net/fib_rules.h')