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path: root/include/dt-bindings/power/mt2701-power.h
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/*
 * Copyright (C) 2015 MediaTek Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#ifndef _DT_BINDINGS_POWER_MT2701_POWER_H
#define _DT_BINDINGS_POWER_MT2701_POWER_H

#define MT2701_POWER_DOMAIN_CONN	0
#define MT2701_POWER_DOMAIN_DISP	1
#define MT2701_POWER_DOMAIN_MFG		2
#define MT2701_POWER_DOMAIN_VDEC	3
#define MT2701_POWER_DOMAIN_ISP		4
#define MT2701_POWER_DOMAIN_BDP		5
#define MT2701_POWER_DOMAIN_ETH		6
#define MT2701_POWER_DOMAIN_HIF		7
#define MT2701_POWER_DOMAIN_IFR_MSC	8

#endif /* _DT_BINDINGS_POWER_MT2701_POWER_H */
3c41084 (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 'kernel/bpf/verifier.c')