dnl Process this file with autoconf to produce a configure script. AC_PREREQ(2.59) AC_INIT([usbip-utils], [2.0], [linux-usb@vger.kernel.org]) AC_DEFINE([USBIP_VERSION], [0x00000111], [binary-coded decimal version number]) CURRENT=0 REVISION=1 AGE=0 AC_SUBST([LIBUSBIP_VERSION], [$CURRENT:$REVISION:$AGE], [library version]) AC_CONFIG_SRCDIR([src/usbipd.c]) AC_CONFIG_HEADERS([config.h]) AM_INIT_AUTOMAKE([foreign]) LT_INIT # Silent build for automake >= 1.11 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_SUBST([EXTRA_CFLAGS], ["-Wall -Werror -Wextra -std=gnu99"]) # Checks for programs. AC_PROG_CC AC_PROG_INSTALL AC_PROG_MAKE_SET # Checks for header files. AC_HEADER_DIRENT AC_HEADER_STDC AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdint.h stdlib.h dnl string.h sys/socket.h syslog.h unistd.h]) # Checks for typedefs, structures, and compiler characteristics. AC_TYPE_INT32_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_TYPE_UINT16_T AC_TYPE_UINT32_T AC_TYPE_UINT8_T # Checks for library functions. AC_FUNC_REALLOC AC_CHECK_FUNCS([memset mkdir regcomp socket strchr strerror strstr dnl strtoul]) AC_CHECK_HEADER([libudev.h], [AC_CHECK_LIB([udev], [udev_new], [LIBS="$LIBS -ludev"], [AC_MSG_ERROR([Missing udev library!])])], [AC_MSG_ERROR([Missing /usr/include/libudev.h])]) # Checks for libwrap library. AC_MSG_CHECKING([whether to use the libwrap (TCP wrappers) library]) AC_ARG_WITH([tcp-wrappers], [AS_HELP_STRING([--with-tcp-wrappers], [use the libwrap (TCP wrappers) library])], dnl [ACTION-IF-GIVEN] [if test "$withval" = "yes"; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([for hosts_access in -lwrap]) saved_LIBS="$LIBS" LIBS="-lwrap $saved_LIBS" AC_TRY_LINK( [int hosts_access(); int allow_severity, deny_severity;], [hosts_access()], [AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_LIBWRAP], [1], [use tcp wrapper]) wrap_LIB="-lwrap"], [AC_MSG_RESULT([not found]); exit 1]) else AC_MSG_RESULT([no]); fi], dnl [ACTION-IF-NOT-GIVEN] [AC_MSG_RESULT([(default)]) AC_MSG_CHECKING([for hosts_access in -lwrap]) saved_LIBS="$LIBS" LIBS="-lwrap $saved_LIBS" AC_TRY_LINK( [int hosts_access(); int allow_severity, deny_severity;], [hosts_access()], [AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_LIBWRAP], [1], [use tcp wrapper])], [AC_MSG_RESULT([no]); LIBS="$saved_LIBS"])]) # Sets directory containing usb.ids. AC_ARG_WITH([usbids-dir], [AS_HELP_STRING([--with-usbids-dir=DIR], [where usb.ids is found (default /usr/share/hwdata/)])], [USBIDS_DIR=$withval], [USBIDS_DIR="/usr/share/hwdata/"]) AC_SUBST([USBIDS_DIR]) # use _FORTIFY_SOURCE AC_MSG_CHECKING([whether to use fortify]) AC_ARG_WITH([fortify], [AS_HELP_STRING([--with-fortify], [use _FORTIFY_SROUCE option when compiling)])], dnl [ACTION-IF-GIVEN] [if test "$withval" = "yes"; then AC_MSG_RESULT([yes]) CFLAGS="$CFLAGS -D_FORTIFY_SOURCE -O" else AC_MSG_RESULT([no]) CFLAGS="$CFLAGS -U_FORTIFY_SOURCE" fi ], dnl [ACTION-IF-NOT-GIVEN] [AC_MSG_RESULT([default])]) AC_CONFIG_FILES([Makefile libsrc/Makefile src/Makefile]) AC_OUTPUT t.cgi/linux/net-next.git/commit/include/soc/tegra?h=nds-private-remove&id=030305d69fc6963c16003f50d7e8d74b02d0a143'>tegra/fuse.h
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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 /include/soc/tegra/fuse.h
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 'include/soc/tegra/fuse.h')