summaryrefslogtreecommitdiff
path: root/tools/perf/arch/arm64/include/dwarf-regs-table.h
blob: 26759363f9217257982c6dcf874e16ec3d816eb4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
#ifdef DEFINE_DWARF_REGSTR_TABLE
/* This is included in perf/util/dwarf-regs.c */

static const char * const aarch64_regstr_tbl[] = {
	"%r0", "%r1", "%r2", "%r3", "%r4",
	"%r5", "%r6", "%r7", "%r8", "%r9",
	"%r10", "%r11", "%r12", "%r13", "%r14",
	"%r15", "%r16", "%r17", "%r18", "%r19",
	"%r20", "%r21", "%r22", "%r23", "%r24",
	"%r25", "%r26", "%r27", "%r28", "%r29",
	"%lr", "%sp",
};
#endif
> tree363a4e34d199178769b7e7eeb26ea2620a55847b /sound/usb/format.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 'sound/usb/format.c')