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authorTobias Klauser <tklauser@distanz.ch>2017-09-13 12:18:21 +0200
committerTobias Klauser <tklauser@distanz.ch>2017-09-13 12:18:21 +0200
commitb4b0db043bc7e03982b24c9e330bf1bc2c727fc0 (patch)
tree9c46585911a622d80c54840be91157247f4a43b8 /proto_icmpv6.c
parent439af62bca4794d78d53fb4634f560d6a75f0adb (diff)
dev: only calculate wireless bitrate if necessary
Only call wireless_bitrate (and thus the underlying ioctl) if strictly necessary, i.e. ethtool_bitrate returned 0. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'proto_icmpv6.c')
0 files changed, 0 insertions, 0 deletions
209e37bf27938ef365244d3c41084 (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 'sound/soc/ux500/Makefile')