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authorTobias Klauser <tklauser@distanz.ch>2020-06-19 14:46:31 +0200
committerTobias Klauser <tklauser@distanz.ch>2020-06-19 14:46:31 +0200
commitd8cb8692174a3f963185c93420662d8207668f78 (patch)
tree091e44e8d843f7b0caac8e7323d1bfaa9008d3f7 /protos.h
parentc6dd9abd8d7a5332d0c1078196528926054791ae (diff)
astraceroute.8: use more sensitive terminology
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'protos.h')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-02-24 00:18:20 +0000
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 'tools/perf/ui/gtk/setup.c')