/* * amdtp-stream-trace.h - tracepoint definitions to dump a part of packet data * * Copyright (c) 2016 Takashi Sakamoto * Licensed under the terms of the GNU General Public License, version 2. */ #undef TRACE_SYSTEM #define TRACE_SYSTEM snd_firewire_lib #if !defined(_AMDTP_STREAM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) #define _AMDTP_STREAM_TRACE_H #include TRACE_EVENT(in_packet, TP_PROTO(const struct amdtp_stream *s, u32 cycles, u32 cip_header[2], unsigned int payload_quadlets, unsigned int index), TP_ARGS(s, cycles, cip_header, payload_quadlets, index), TP_STRUCT__entry( __field(unsigned int, second) __field(unsigned int, cycle) __field(int, channel) __field(int, src) __field(int, dest) __field(u32, cip_header0) __field(u32, cip_header1) __field(unsigned int, payload_quadlets) __field(unsigned int, packet_index) __field(unsigned int, irq) __field(unsigned int, index) ), TP_fast_assign( __entry->second = cycles / CYCLES_PER_SECOND; __entry->cycle = cycles % CYCLES_PER_SECOND; __entry->channel = s->context->channel; __entry->src = fw_parent_device(s->unit)->node_id; __entry->dest = fw_parent_device(s->unit)->card->node_id; __entry->cip_header0 = cip_header[0]; __entry->cip_header1 = cip_header[1]; __entry->payload_quadlets = payload_quadlets; __entry->packet_index = s->packet_index; __entry->irq = !!in_interrupt(); __entry->index = index; ), TP_printk( "%02u %04u %04x %04x %02d %08x %08x %03u %02u %01u %02u", __entry->second, __entry->cycle, __entry->src, __entry->dest, __entry->channel, __entry->cip_header0, __entry->cip_header1, __entry->payload_quadlets, __entry->packet_index, __entry->irq, __entry->index) ); TRACE_EVENT(out_packet, TP_PROTO(const struct amdtp_stream *s, u32 cycles, __be32 *cip_header, unsigned int payload_length, unsigned int index), TP_ARGS(s, cycles, cip_header, payload_length, index), TP_STRUCT__entry( __field(unsigned int, second) __field(unsigned int, cycle) __field(int, channel) __field(int, src) __field(int, dest) __field(u32, cip_header0) __field(u32, cip_header1) __field(unsigned int, payload_quadlets) __field(unsigned int, packet_index) __field(unsigned int, irq) __field(unsigned int, index) ), TP_fast_assign( __entry->second = cycles / CYCLES_PER_SECOND; __entry->cycle = cycles % CYCLES_PER_SECOND; __entry->channel = s->context->channel; __entry->src = fw_parent_device(s->unit)->card->node_id; __entry->dest = fw_parent_device(s->unit)->node_id; __entry->cip_header0 = be32_to_cpu(cip_header[0]); __entry->cip_header1 = be32_to_cpu(cip_header[1]); __entry->payload_quadlets = payload_length / 4; __entry->packet_index = s->packet_index; __entry->irq = !!in_interrupt(); __entry->index = index; ), TP_printk( "%02u %04u %04x %04x %02d %08x %08x %03u %02u %01u %02u", __entry->second, __entry->cycle, __entry->src, __entry->dest, __entry->channel, __entry->cip_header0, __entry->cip_header1, __entry->payload_quadlets, __entry->packet_index, __entry->irq, __entry->index) ); #endif #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE #define TRACE_INCLUDE_FILE amdtp-stream-trace #include mmit/include/net/9p?h=nds-private-remove&id=030305d69fc6963c16003f50d7e8d74b02d0a143'>9p/9p.h
diff options
context:
space:
mode:
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/9p/9p.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/9p/9p.h')