#!/bin/sh function test_ex { make -C ex V=1 clean > ex.out 2>&1 make -C ex V=1 >> ex.out 2>&1 if [ ! -x ./ex/ex ]; then echo FAILED exit -1 fi make -C ex V=1 clean > /dev/null 2>&1 rm -f ex.out } function test_ex_suffix { make -C ex V=1 clean > ex.out 2>&1 # use -rR to disable make's builtin rules make -rR -C ex V=1 ex.o >> ex.out 2>&1 make -rR -C ex V=1 ex.i >> ex.out 2>&1 make -rR -C ex V=1 ex.s >> ex.out 2>&1 if [ -x ./ex/ex ]; then echo FAILED exit -1 fi if [ ! -f ./ex/ex.o -o ! -f ./ex/ex.i -o ! -f ./ex/ex.s ]; then echo FAILED exit -1 fi make -C ex V=1 clean > /dev/null 2>&1 rm -f ex.out } function test_ex_include { make -C ex V=1 clean > ex.out 2>&1 # build with krava.h include touch ex/krava.h make -C ex V=1 CFLAGS=-DINCLUDE >> ex.out 2>&1 if [ ! -x ./ex/ex ]; then echo FAILED exit -1 fi # build without the include rm -f ex/krava.h ex/ex make -C ex V=1 >> ex.out 2>&1 if [ ! -x ./ex/ex ]; then echo FAILED exit -1 fi make -C ex V=1 clean > /dev/null 2>&1 rm -f ex.out } echo -n Testing.. test_ex test_ex_suffix test_ex_include echo OK -remove' selected='selected'>nds-private-remove net-next plumbingsTobias Klauser
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path: root/net/openvswitch/vport.c
2aed17e'>svc_rdma_marshal.c
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Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_marshal.c')
et/nfc/hci/llc_shdlc.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/nfc/hci/llc_shdlc.c')