/* * Copyright (C) 2014 Ulrich Hecht * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef __DT_BINDINGS_CLOCK_R8A7778_H__ #define __DT_BINDINGS_CLOCK_R8A7778_H__ /* CPG */ #define R8A7778_CLK_PLLA 0 #define R8A7778_CLK_PLLB 1 #define R8A7778_CLK_B 2 #define R8A7778_CLK_OUT 3 #define R8A7778_CLK_P 4 #define R8A7778_CLK_S 5 #define R8A7778_CLK_S1 6 /* MSTP0 */ #define R8A7778_CLK_I2C0 30 #define R8A7778_CLK_I2C1 29 #define R8A7778_CLK_I2C2 28 #define R8A7778_CLK_I2C3 27 #define R8A7778_CLK_SCIF0 26 #define R8A7778_CLK_SCIF1 25 #define R8A7778_CLK_SCIF2 24 #define R8A7778_CLK_SCIF3 23 #define R8A7778_CLK_SCIF4 22 #define R8A7778_CLK_SCIF5 21 #define R8A7778_CLK_TMU0 16 #define R8A7778_CLK_TMU1 15 #define R8A7778_CLK_TMU2 14 #define R8A7778_CLK_SSI0 12 #define R8A7778_CLK_SSI1 11 #define R8A7778_CLK_SSI2 10 #define R8A7778_CLK_SSI3 9 #define R8A7778_CLK_SRU 8 #define R8A7778_CLK_HSPI 7 /* MSTP1 */ #define R8A7778_CLK_ETHER 14 #define R8A7778_CLK_VIN0 10 #define R8A7778_CLK_VIN1 9 #define R8A7778_CLK_USB 0 /* MSTP3 */ #define R8A7778_CLK_MMC 31 #define R8A7778_CLK_SDHI0 23 #define R8A7778_CLK_SDHI1 22 #define R8A7778_CLK_SDHI2 21 #define R8A7778_CLK_SSI4 11 #define R8A7778_CLK_SSI5 10 #define R8A7778_CLK_SSI6 9 #define R8A7778_CLK_SSI7 8 #define R8A7778_CLK_SSI8 7 /* MSTP5 */ #define R8A7778_CLK_SRU_SRC0 31 #define R8A7778_CLK_SRU_SRC1 30 #define R8A7778_CLK_SRU_SRC2 29 #define R8A7778_CLK_SRU_SRC3 28 #define R8A7778_CLK_SRU_SRC4 27 #define R8A7778_CLK_SRU_SRC5 26 #define R8A7778_CLK_SRU_SRC6 25 #define R8A7778_CLK_SRU_SRC7 24 #define R8A7778_CLK_SRU_SRC8 23 #endif /* __DT_BINDINGS_CLOCK_R8A7778_H__ */ gi/linux/net-next.git/tree/net/phonet/pep.c?h=nds-private-remove&id=030305d69fc6963c16003f50d7e8d74b02d0a143'>treecommitdiff
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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 /net/phonet/pep.c
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 'net/phonet/pep.c')