* I merged net-next back to avoid a conflict with the
* cfg80211 scheduled scan API extensions
* preparations for better scan result timestamping
* regulatory cleanups
* mac80211 statistics cleanups
* a few other small cleanups and fixes
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Merge tag 'mac80211-next-for-davem-2015-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Here's another set of patches for the current cycle:
* I merged net-next back to avoid a conflict with the
* cfg80211 scheduled scan API extensions
* preparations for better scan result timestamping
* regulatory cleanups
* mac80211 statistics cleanups
* a few other small cleanups and fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This helper is used to send raw data from eBPF program into
special PERF_TYPE_SOFTWARE/PERF_COUNT_SW_BPF_OUTPUT perf_event.
User space needs to perf_event_open() it (either for one or all cpus) and
store FD into perf_event_array (similar to bpf_perf_event_read() helper)
before eBPF program can send data into it.
Today the programs triggered by kprobe collect the data and either store
it into the maps or print it via bpf_trace_printk() where latter is the debug
facility and not suitable to stream the data. This new helper replaces
such bpf_trace_printk() usage and allows programs to have dedicated
channel into user space for post-processing of the raw data collected.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/usb/asix_common.c
net/ipv4/inet_connection_sock.c
net/switchdev/switchdev.c
In the inet_connection_sock.c case the request socket hashing scheme
is completely different in net-next.
The other two conflicts were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Account for extra headroom in ath9k driver, from Felix Fietkau.
2) Fix OOPS in pppoe driver due to incorrect socket state transition,
from Guillaume Nault.
3) Kill memory leak in amd-xgbe debugfx, from Geliang Tang.
4) Power management fixes for iwlwifi, from Johannes Berg.
5) Fix races in reqsk_queue_unlink(), from Eric Dumazet.
6) Fix dst_entry usage in ARP replies, from Jiri Benc.
7) Cure OOPSes with SO_GET_FILTER, from Daniel Borkmann.
8) Missing allocation failure check in amd-xgbe, from Tom Lendacky.
9) Various resource allocation/freeing cures in DSA< from Neil
Armstrong.
10) A series of bug fixes in the openvswitch conntrack support, from
Joe Stringer.
11) Fix two cases (BPF and act_mirred) where we have to clean the sender
cpu stored in the SKB before transmitting. From WANG Cong and
Alexei Starovoitov.
12) Disable VLAN filtering in promiscuous mode in mlx5 driver, from
Achiad Shochat.
13) Older bnx2x chips cannot do 4-tuple UDP hashing, so prevent this
configuration via ethtool. From Yuval Mintz.
14) Don't call rt6_uncached_list_flush_dev() from rt6_ifdown() when
'dev' is NULL, from Eric Biederman.
15) Prevent stalled link synchronization in tipc, from Jon Paul Maloy.
16) kcalloc() gstrings ethtool buffer before having driver fill it in,
in order to prevent kernel memory leaking. From Joe Perches.
17) Fix mixxing rt6_info initialization for blackhole routes, from
Martin KaFai Lau.
18) Kill VLAN regression in via-rhine, from Andrej Ota.
19) Missing pfmemalloc check in sk_add_backlog(), from Eric Dumazet.
20) Fix spurious MSG_TRUNC signalling in netlink dumps, from Ronen Arad.
21) Scrube SKBs when pushing them between namespaces in openvswitch,
from Joe Stringer.
22) bcmgenet enables link interrupts too early, fix from Florian
Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
net: bcmgenet: Fix early link interrupt enabling
tunnels: Don't require remote endpoint or ID during creation.
openvswitch: Scrub skb between namespaces
xen-netback: correctly check failed allocation
net: asix: add support for the Billionton GUSB2AM-1G-B USB adapter
netlink: Trim skb to alloc size to avoid MSG_TRUNC
net: add pfmemalloc check in sk_add_backlog()
via-rhine: fix VLAN receive handling regression.
ipv6: Initialize rt6_info properly in ip6_blackhole_route()
ipv6: Move common init code for rt6_info to a new function rt6_info_init()
Bluetooth: Fix initializing conn_params in scan phase
Bluetooth: Fix conn_params list update in hci_connect_le_scan_cleanup
Bluetooth: Fix remove_device behavior for explicit connects
Bluetooth: Fix LE reconnection logic
Bluetooth: Fix reference counting for LE-scan based connections
Bluetooth: Fix double scan updates
mlxsw: core: Fix race condition in __mlxsw_emad_transmit
tipc: move fragment importance field to new header position
ethtool: Use kcalloc instead of kmalloc for ethtool_get_strings
tipc: eliminate risk of stalled link synchronization
...
Pablo Neira Ayuso says:
====================
Netfilter/IPVS updates for net-next
The following patchset contains Netfilter/IPVS updates for your net-next
tree. Most relevantly, updates for the nfnetlink_log to integrate with
conntrack, fixes for cttimeout and improvements for nf_queue core, they are:
1) Remove useless ifdef around static inline function in IPVS, from
Eric W. Biederman.
2) Simplify the conntrack support for nfnetlink_queue: Merge
nfnetlink_queue_ct.c file into nfnetlink_queue_core.c, then rename it back
to nfnetlink_queue.c
3) Use y2038 safe timestamp from nfnetlink_queue.
4) Get rid of dead function definition in nf_conntrack, from Flavio
Leitner.
5) Attach conntrack support for nfnetlink_log.c, from Ken-ichirou MATSUZAWA.
This adds a new NETFILTER_NETLINK_GLUE_CT Kconfig switch that
controls enabling both nfqueue and nflog integration with conntrack.
The userspace application can request this via NFULNL_CFG_F_CONNTRACK
configuration flag.
6) Remove unused netns variables in IPVS, from Eric W. Biederman and
Simon Horman.
7) Don't put back the refcount on the cttimeout object from xt_CT on success.
8) Fix crash on cttimeout policy object removal. We have to flush out
the cttimeout extension area of the conntrack not to refer to an unexisting
object that was just removed.
9) Make sure rcu_callback completion before removing nfnetlink_cttimeout
module removal.
10) Fix compilation warning in br_netfilter when no nf_defrag_ipv4 and
nf_defrag_ipv6 are enabled. Patch from Arnd Bergmann.
11) Autoload ctnetlink dependencies when NFULNL_CFG_F_CONNTRACK is
requested. Again from Ken-ichirou MATSUZAWA.
12) Don't use pointer to previous hook when reinjecting traffic via
nf_queue with NF_REPEAT verdict since it may be already gone. This
also avoids a deadloop if the userspace application keeps returning
NF_REPEAT.
13) A bunch of cleanups for netfilter IPv4 and IPv6 code from Ian Morris.
14) Consolidate logger instance existence check in nfulnl_recv_config().
15) Fix broken atomicity when applying configuration updates to logger
instances in nfnetlink_log.
16) Get rid of the .owner attribute in our hook object. We don't need
this anymore since we're dropping pending packets that have escaped
from the kernel when unremoving the hook. Patch from Florian Westphal.
17) Remove unnecessary rcu_read_lock() from nf_reinject code, we always
assume RCU read side lock from .call_rcu in nfnetlink. Also from Florian.
18) Use static inline function instead of macros to define NF_HOOK() and
NF_HOOK_COND() when no netfilter support in on, from Arnd Bergmann.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add missing rule to export mpls iptunnel header needed by iproute2
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This merge resolves conflicts with 75aec9df3a ("bridge: Remove
br_nf_push_frag_xmit_sk") as part of Eric Biederman's effort to improve
netns support in the network stack that reached upstream via David's
net-next tree.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Conflicts:
net/bridge/br_netfilter_hooks.c
The can subsystem communicates with user space using a bcm_msg_head
header, which contains two timestamps. This is problematic for
multiple reasons:
a) The structure layout is currently incompatible between 64-bit
user space and 32-bit user space, and cannot work in compat
mode (other than x32).
b) The timeval structure layout will change in 32-bit user
space when we fix the y2038 overflow problem by redefining
time_t to 64-bit, making new 32-bit user space incompatible
with the current kernel interface.
Cars last a long time and often use old kernels, so the actual
users of this code are the most likely ones to migrate to y2038
safe user space.
This tries to work around part of the problem by changing the
publicly visible user interface in the header, but not the binary
interface. Fortunately, the values passed around in the structure
are relative times and do not actually suffer from the y2038
overflow, so 32-bit is enough here.
We replace the use of 'struct timeval' with a newly defined
'struct bcm_timeval' that uses the exact same binary layout
as before and that still suffers from problem a) but not problem
b).
The downside of this approach is that any user space program
that currently assigns a timeval structure to these members
rather than writing the tv_sec/tv_usec portions individually
will suffer a compile-time error when built with an updated
kernel header. Fixing this error makes it work fine with old
and new headers though.
We could address problem a) by using '__u32' or 'int' members
rather than 'long', but that would have a more significant
downside in also breaking support for all existing 64-bit user
binaries that might be using this interface, which is likely
not acceptable.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-can@vger.kernel.org
Cc: linux-api@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add the option to configure multiple 'scan plans' for scheduled scan.
Each 'scan plan' defines the number of scan cycles and the interval
between scans. The scan plans are executed in the order they were
configured. The last scan plan will always run infinitely and thus
defines only the interval between scans.
The maximum number of scan plans supported by the device and the
maximum number of iterations in a single scan plan are advertised
to userspace so it can configure the scan plans appropriately.
When scheduled scan results are received there is no way to know which
scan plan is being currently executed, so there is no way to know when
the next scan iteration will start. This is not a problem, however.
The scan start timestamp is only used for flushing old scan results,
and there is no difference between flushing all results received until
the end of the previous iteration or the start of the current one,
since no results will be received in between.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
For location and connectivity services, userspace would often like
to know the time when the BSS was last seen. The current "last seen"
value is calculated in a way that makes it less useful, especially
if the system suspended in the meantime.
Add the ability for the driver to report a real CLOCK_BOOTTIME stamp
that can then be reported to userspace (if present).
Drivers wishing to use this must be converted to the new API to call
cfg80211_inform_bss_data() or cfg80211_inform_bss_frame_data(). They
need to ensure the reported value is accurate enough even when the
frame might have been buffered in the device (e.g. firmware.)
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[modified to use struct, inlines]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
RTA_ALIGNTO is currently define as 4. It has to be 4U to prevent warning
for RTA_ALIGN and RTA_DATA expansions when -Wconversion gcc option is
enabled.
This follows NLMSG_ALIGNTO definition in <include/uapi/linux/netlink.h>.
Signed-off-by: Ronen Arad <ronen.arad@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
MINSIGSTKSZ and SIGSTKSZ for ARM64 are not correctly set in latest kernel.
This patch fixes this issue.
This issue is reported in LTP (testcase: sigaltstack02.c).
Testcase failed when sigaltstack() called with stack size "MINSIGSTKSZ - 1"
Since in Glibc-2.22, MINSIGSTKSZ is set to 5120 but in kernel
it is set to 2048 so testcase gets failed.
Testcase Output:
sigaltstack02 1 TPASS : stgaltstack() fails, Invalid Flag value,errno:22
sigaltstack02 2 TFAIL : sigaltstack() returned 0, expected -1,errno:12
Reported Issue in Glibc Bugzilla:
Bugfix in Glibc-2.22: [Bug 16850]
https://sourceware.org/bugzilla/show_bug.cgi?id=16850
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: Manjeet Pawar <manjeet.p@samsung.com>
Signed-off-by: Rohit Thapliyal <r.thapliyal@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Previously, the CT_ATTR_FLAGS attribute, when nested under the
OVS_ACTION_ATTR_CT, encoded a 32-bit bitmask of flags that modify the
semantics of the ct action. It's more extensible to just represent each
flag as a nested attribute, and this requires no additional error
checking to reject flags that aren't currently supported.
Suggested-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ct_state field was initially added as an 8-bit field, however six of
the bits are already being used and use cases are already starting to
appear that may push the limits of this field. This patch extends the
field to 32 bits while retaining the internal representation of 8 bits.
This should cover forward compatibility of the ABI for the foreseeable
future.
This patch also reorders the OVS_CS_F_* bits to be sequential.
Suggested-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These comments hadn't caught up to their implementations, fix them.
Fixes: 7f8a436eaa "openvswitch: Add conntrack action"
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_MULTICAST_ROUTER to allow setting/getting port's
multicast_router via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_FLUSH to allow flushing port's fdb similar to sysfs's
flush.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the following attributes in order to export port's timer values:
IFLA_BRPORT_MESSAGE_AGE_TIMER, IFLA_BRPORT_FORWARD_DELAY_TIMER and
IFLA_BRPORT_HOLD_TIMER.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_TOPOLOGY_CHANGE_ACK and IFLA_BRPORT_CONFIG_PENDING to
allow getting port's topology_change_ack and config_pending respectively
via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_(ID|NO) to allow getting port's port_id and port_no
respectively via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_DESIGNATED_(COST|PORT) to allow getting the port's
designated cost and port respectively via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_BRIDGE_ID to allow getting the designated bridge id via
netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BRPORT_ROOT_ID to allow getting the designated root id via
netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add netlink attributes for IPv6 tunnel addresses. This enables IPv6 support
for tunnels.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch enables to include the conntrack information together
with the packet that is sent to user-space via NFLOG, then a
user-space program can acquire NATed information by this NFULA_CT
attribute.
Including the conntrack information is optional, you can set it
via NFULNL_CFG_F_CONNTRACK flag with the NFULA_CFG_FLAGS attribute
like NFQUEUE.
Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Conntrack LABELS (plural) are exposed by conntrack; rename the OVS name
for these to be consistent with conntrack.
Fixes: c2ac667 "openvswitch: Allow matching on conntrack label"
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The zatm_t_hist structure is not used anywhere in the kernel, but is
exported to user space. As we are trying to eliminate uses of time_t
in the kernel for y2038 compatibility, the current definition triggers
checking tools because it contains 'struct timeval'.
As pointed out by Chas Williams, the only user of this structure was
the ZATM_GETHIST ioctl command that has been removed a long time ago,
and we can remove the structure as well without breaking any user
space.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Chas Williams <3chas3@gmail.com>
Cc: linux-atm-general@lists.sourceforge.net
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_VLAN_DEFAULT_PVID to allow setting/getting bridge's
default_pvid via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to allow getting/setting netfilter tables settings.
Currently these are IFLA_BR_NF_CALL_IPTABLES, IFLA_BR_NF_CALL_IP6TABLES
and IFLA_BR_NF_CALL_ARPTABLES.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to set/get all of the igmp's configurable intervals via
netlink. These currently are:
IFLA_BR_MCAST_LAST_MEMBER_INTVL
IFLA_BR_MCAST_MEMBERSHIP_INTVL
IFLA_BR_MCAST_QUERIER_INTVL
IFLA_BR_MCAST_QUERY_INTVL
IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
IFLA_BR_MCAST_STARTUP_QUERY_INTVL
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_STARTUP_QUERY_CNT to allow setting/getting
br->multicast_startup_query_count via netlink. Also align the ifla
comments.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_LAST_MEMBER_CNT to allow setting/getting
br->multicast_last_member_count via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_HASH_MAX to allow setting/getting br->hash_max via
netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_HASH_ELASTICITY to allow setting/getting
br->hash_elasticity via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_QUERIER to allow setting/getting br->multicast_querier
via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_QUERY_USE_IFADDR to allow setting/getting
br->multicast_query_use_ifaddr via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_SNOOPING to allow enabling/disabling multicast
snooping via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_MCAST_ROUTER to allow setting and retrieving
br->multicast_router when igmp snooping is enabled.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simple attribute that flushes the bridge's fdb.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_GROUP_ADDR attribute to allow setting and retrieving the
group_addr via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Export the following bridge timers (also exported via sysfs):
IFLA_BR_HELLO_TIMER, IFLA_BR_TCN_TIMER, IFLA_BR_TOPOLOGY_CHANGE_TIMER,
IFLA_BR_GC_TIMER via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_TOPOLOGY_CHANGE and IFLA_BR_TOPOLOGY_CHANGE_DETECTED and
export them via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_ROOT_PATH_COST and export it via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_ROOT_PORT and export it via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_BRIDGE_ID and export br->bridge_id via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_ROOT_ID and export br->designated_root via netlink. For this
purpose add struct ifla_bridge_id that would represent struct bridge_id.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add IFLA_BR_GROUP_FWD_MASK attribute to allow setting and retrieving the
group_fwd_mask via netlink.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using routing realms as part of the classifier is quite useful, it
can be viewed as a tag for one or multiple routing entries (think of
an analogy to net_cls cgroup for processes), set by user space routing
daemons or via iproute2 as an indicator for traffic classifiers and
later on processed in the eBPF program.
Unlike actions, the classifier can inspect device flags and enable
netif_keep_dst() if necessary. tc actions don't have that possibility,
but in case people know what they are doing, it can be used from there
as well (e.g. via devs that must keep dsts by design anyway).
If a realm is set, the handler returns the non-zero realm. User space
can set the full 32bit realm for the dst.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As include/uapi/linux/userfaultfd.h is a user visible header file, it
should not include kernel-exclusive header files.
So trying to build the userfaultfd test program from the selftests
directory fails, since it contains a reference to linux/compiler.h. As
it turns out, that header is not really needed there, so we can simply
remove it to fix that issue.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
