6428 Commits

Author SHA1 Message Date
Roman Gushchin
cd33943176 bpf: introduce the bpf_get_local_storage() helper function
The bpf_get_local_storage() helper function is used
to get a pointer to the bpf local storage from a bpf program.

It takes a pointer to a storage map and flags as arguments.
Right now it accepts only cgroup storage maps, and flags
argument has to be 0. Further it can be extended to support
other types of local storage: e.g. thread local storage etc.

Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-08-03 00:47:32 +02:00
Roman Gushchin
de9cbbaadb bpf: introduce cgroup storage maps
This commit introduces BPF_MAP_TYPE_CGROUP_STORAGE maps:
a special type of maps which are implementing the cgroup storage.

>From the userspace point of view it's almost a generic
hash map with the (cgroup inode id, attachment type) pair
used as a key.

The only difference is that some operations are restricted:
  1) a user can't create new entries,
  2) a user can't remove existing entries.

The lookup from userspace is o(log(n)).

Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-08-03 00:47:32 +02:00
David S. Miller
89b1698c93 Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
The BTF conflicts were simple overlapping changes.

The virtio_net conflict was an overlap of a fix of statistics counter,
happening alongisde a move over to a bonafide statistics structure
rather than counting value on the stack.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-02 10:55:32 -07:00
Todor Tomov
6e15bec49f media: v4l: Add new 10-bit packed grayscale format
The new format will be called V4L2_PIX_FMT_Y10P.
It is similar to the V4L2_PIX_FMT_SBGGR10P family formats
but V4L2_PIX_FMT_Y10P is a grayscale format.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:07:05 -04:00
Todor Tomov
451af0bf04 media: v4l: Add new 2X8 10-bit grayscale media bus code
The code will be called MEDIA_BUS_FMT_Y10_2X8_PADHI_LE.
It is similar to MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE
but MEDIA_BUS_FMT_Y10_2X8_PADHI_LE describes grayscale
data.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:04:57 -04:00
Sakari Ailus
83b15832ab media: doc-rst: Add packed Bayer raw14 pixel formats
These formats are compressed 14-bit raw bayer formats with four different
pixel orders. They are similar to 10-bit variants. The formats added by
this patch are

	V4L2_PIX_FMT_SBGGR14P
	V4L2_PIX_FMT_SGBRG14P
	V4L2_PIX_FMT_SGRBG14P
	V4L2_PIX_FMT_SRGGB14P

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:01:02 -04:00
Wei Wang
7ec65372ca tcp: add stat of data packet reordering events
Introduce a new TCP stats to record the number of reordering events seen
and expose it in both tcp_info (TCP_INFO) and opt_stats
(SOF_TIMESTAMPING_OPT_STATS).
Application can use this stats to track the frequency of the reordering
events in addition to the existing reordering stats which tracks the
magnitude of the latest reordering event.

Note: this new stats tracks reordering events triggered by ACKs, which
could often be fewer than the actual number of packets being delivered
out-of-order.

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-01 09:56:10 -07:00
Wei Wang
7e10b6554f tcp: add dsack blocks received stats
Introduce a new TCP stat to record the number of DSACK blocks received
(RFC4989 tcpEStatsStackDSACKDups) and expose it in both tcp_info
(TCP_INFO) and opt_stats (SOF_TIMESTAMPING_OPT_STATS).

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-01 09:56:10 -07:00
Wei Wang
fb31c9b9f6 tcp: add data bytes retransmitted stats
Introduce a new TCP stat to record the number of bytes retransmitted
(RFC4898 tcpEStatsPerfOctetsRetrans) and expose it in both tcp_info
(TCP_INFO) and opt_stats (SOF_TIMESTAMPING_OPT_STATS).

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-01 09:56:10 -07:00
Wei Wang
ba113c3aa7 tcp: add data bytes sent stats
Introduce a new TCP stat to record the number of bytes sent
(RFC4898 tcpEStatsPerfHCDataOctetsOut) and expose it in both tcp_info
(TCP_INFO) and opt_stats (SOF_TIMESTAMPING_OPT_STATS).

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-01 09:56:10 -07:00
Dave Airlie
f8f15c34ac Merge tag 'drm-msm-next-2018-07-30' of git://people.freedesktop.org/~robclark/linux into drm-next
A bit larger this time around, due to introduction of "dpu1" support
for the display controller in sdm845 and beyond.  This has been on
list and undergoing refactoring since Feb (going from ~110kloc to
~30kloc), and all my review complaints have been addressed, so I'd be
happy to see this upstream so further feature work can procede on top
of upstream.

Also includes the gpu coredump support, which should be useful for
debugging gpu crashes.  And various other misc fixes and such.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGv-8y3zguY0Mj1vh=o+vrv_bJ8AwZ96wBXYPvMeQT2XcA@mail.gmail.com
2018-08-01 08:52:19 +10:00
Finn Thain
ebd722275f macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver
Now that the PowerMac via-pmu driver supports m68k PowerBooks,
switch over to that driver and remove the via-pmu68k driver.

Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-31 19:56:42 +10:00
Finn Thain
54c990775f macintosh/via-pmu68k: Don't load driver on unsupported hardware
Don't load the via-pmu68k driver on early PowerBooks. The M50753 PMU
device found in those models was never supported by this driver.
Attempting to load the driver usually causes a boot hang.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Michael Schmitz <schmitzmic@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-31 19:56:42 +10:00
Andrey Ignatov
d692f1138a bpf: Support bpf_get_socket_cookie in more prog types
bpf_get_socket_cookie() helper can be used to identify skb that
correspond to the same socket.

Though socket cookie can be useful in many other use-cases where socket is
available in program context. Specifically BPF_PROG_TYPE_CGROUP_SOCK_ADDR
and BPF_PROG_TYPE_SOCK_OPS programs can benefit from it so that one of
them can augment a value in a map prepared earlier by other program for
the same socket.

The patch adds support to call bpf_get_socket_cookie() from
BPF_PROG_TYPE_CGROUP_SOCK_ADDR and BPF_PROG_TYPE_SOCK_OPS.

It doesn't introduce new helpers. Instead it reuses same helper name
bpf_get_socket_cookie() but adds support to this helper to accept
`struct bpf_sock_addr` and `struct bpf_sock_ops`.

Documentation in bpf.h is changed in a way that should not break
automatic generation of markdown.

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-31 09:33:48 +02:00
Janosch Frank
a449938297 KVM: s390: Add huge page enablement control
General KVM huge page support on s390 has to be enabled via the
kvm.hpage module parameter. Either nested or hpage can be enabled, as
we currently do not support vSIE for huge backed guests. Once the vSIE
support is added we will either drop the parameter or enable it as
default.

For a guest the feature has to be enabled through the new
KVM_CAP_S390_HPAGE_1M capability and the hpage module
parameter. Enabling it means that cmm can't be enabled for the vm and
disables pfmf and storage key interpretation.

This is due to the fact that in some cases, in upcoming patches, we
have to split huge pages in the guest mapping to be able to set more
granular memory protection on 4k pages. These split pages have fake
page tables that are not visible to the Linux memory management which
subsequently will not manage its PGSTEs, while the SIE will. Disabling
these features lets us manage PGSTE data in a consistent matter and
solve that problem.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
2018-07-30 23:13:38 +02:00
Mauro Carvalho Chehab
d21c249b26 media: dvb/audio.h: get rid of unused APIs
There are a number of other ioctls that aren't used anywhere
inside the Kernel tree.

Get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30 16:21:49 -04:00
Mauro Carvalho Chehab
b41e44b4cb media: dvb/video.h: get rid of unused APIs
There are a number of other ioctls that aren't used anywhere
inside the Kernel tree.

Get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30 15:43:47 -04:00
Linus Torvalds
0634922a78 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc fixes:

   - AMD IBS data corruptor fix (uncovered by UBSAN)

   - an Intel PEBS entry unwind error fix

   - a HW-tracing crash fix

   - a MAINTAINERS update"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix crash when using HW tracing kernel filters
  perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)
  MAINTAINERS: Add Naveen N. Rao as kprobes co-maintainer
  perf/x86/amd/ibs: Don't access non-started event
2018-07-30 11:45:30 -07:00
Paolo Abeni
802bfb1915 net/sched: user-space can't set unknown tcfa_action values
Currently, when initializing an action, the user-space can specify
and use arbitrary values for the tcfa_action field. If the value
is unknown by the kernel, is implicitly threaded as TC_ACT_UNSPEC.

This change explicitly checks for unknown values at action creation
time, and explicitly convert them to TC_ACT_UNSPEC. No functional
changes are introduced, but this will allow introducing tcfa_action
values not exposed to user-space in a later patch.

Note: we can't use the above to hide TC_ACT_REDIRECT from user-space,
as the latter is already part of uAPI.

v3 -> v4:
 - use an helper to check for action validity (JiriP)
 - emit an extack for invalid actions (JiriP)
v4 -> v5:
 - keep messages on a single line, drop net_warn (Marcelo)

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-30 09:31:13 -07:00
Mauro Carvalho Chehab
ea8532daee media: videodev2: get rid of VIDIOC_RESERVED
While this ioctl is there at least since Kernel 2.6.12-rc2, it
was never used by any upstream driver.

Get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30 10:23:34 -04:00
Máté Eckl
4ed8eb6570 netfilter: nf_tables: Add native tproxy support
A great portion of the code is taken from xt_TPROXY.c

There are some changes compared to the iptables implementation:
 - tproxy statement is not terminal here
 - Either address or port has to be specified, but at least one of them
   is necessary. If one of them is not specified, the evaluation will be
   performed with the original attribute of the packet (ie. target port
   is not specified => the packet's dport will be used).

To make this work in inet tables, the tproxy structure has a family
member (typically called priv->family) which is not necessarily equal to
ctx->family.

priv->family can have three values legally:
 - NFPROTO_IPV4 if the table family is ip OR if table family is inet,
   but an ipv4 address is specified as a target address. The rule only
   evaluates ipv4 packets in this case.
 - NFPROTO_IPV6 if the table family is ip6 OR if table family is inet,
   but an ipv6 address is specified as a target address. The rule only
   evaluates ipv6 packets in this case.
 - NFPROTO_UNSPEC if the table family is inet AND if only the port is
   specified. The rule will evaluate both ipv4 and ipv6 packets.

Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-30 14:07:12 +02:00
Fernando Fernandez Mancera
b96af92d6e netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf
Add basic module functions into nft_osf.[ch] in order to implement OSF
module in nf_tables.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-30 14:07:11 +02:00
Fernando Fernandez Mancera
f932495208 netfilter: nfnetlink_osf: extract nfnetlink_subsystem code from xt_osf.c
Move nfnetlink osf subsystem from xt_osf.c to standalone module so we can
reuse it from the new nft_ost extension.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-07-30 14:07:11 +02:00
Dave Airlie
3fce461827 BackMerge v4.18-rc7 into drm-next
rmk requested this for armada and I think we've had a few
conflicts build up.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-30 10:39:22 +10:00
Stephen Hemminger
3e7a50ceb1 net: report min and max mtu network device settings
Report the minimum and maximum MTU allowed on a device
via netlink so that it can be displayed by tools like
ip link.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29 12:57:26 -07:00
Jakub Kicinski
4b09384aaa net: dcb: add DSCP to comment about priority selector types
Commit ee2059819450 ("net/dcb: Add dscp to priority selector type")
added a define for the new DSCP selector type created by
IEEE 802.1Qcd, but missed the comment enumerating all selector types.
Update the comment.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29 12:53:54 -07:00
Xin Long
5cbf777cfd route: add support for directed broadcast forwarding
This patch implements the feature described in rfc1812#section-5.3.5.2
and rfc2644. It allows the router to forward directed broadcast when
sysctl bc_forwarding is enabled.

Note that this feature could be done by iptables -j TEE, but it would
cause some problems:
  - target TEE's gateway param has to be set with a specific address,
    and it's not flexible especially when the route wants forward all
    directed broadcasts.
  - this duplicates the directed broadcasts so this may cause side
    effects to applications.

Besides, to keep consistent with other os router like BSD, it's also
necessary to implement it in the route rx path.

Note that route cache needs to be flushed when bc_forwarding is
changed.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29 12:37:06 -07:00
David S. Miller
41627cdb02 linux-can-next-for-4.19-20180727
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEENrCndlB/VnAEWuH5k9IU1zQoZfEFAlta2oUTHG1rbEBwZW5n
 dXRyb25peC5kZQAKCRCT0hTXNChl8SWrCADJyQjWSWZaHHpHJeD1kUStgDEG5lYJ
 e3rgrCEz4CVqGz5/wfsRCiuch14APjyn+xiHxjd+wCOES0wEg0viPIe40NlY28w7
 SGvIogYRC27PoIXGQClasFG2Y/MEyaKChVGXkMfgkLs/zoHvd22zkxx/0l6lIAK5
 CGCj8wTM/ZPh7Fn0tbn35E12j7yoHsTIv5YN463/XZJ7qVUDm7JW0siyXxhw4yP9
 W18CcjInMds7YyUvs/PMMKnSgqOmGFdBpaaAkuqHcJgk0buI52XJRVihnea8y0V1
 aQya6U8NWVUM1PEN6gefhOIye1w9HapnIyS79m5gmRPm8zXxwwOBRLy2
 =YwFQ
 -----END PGP SIGNATURE-----

Merge tag 'linux-can-next-for-4.19-20180727' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2018-01-16

this is a pull request for net-next/master consisting of 38 patches.

Dan Murphy's patch fixes the path to a file in the comment of the CAN
Error Message Frame Mask structure.

A patch by Colin Ian King fixes a typo in the cc770 driver.

The next patch is by me an sorts the Kconfigand Makefile entries of the
CAN-USB driver subdir alphabetically.

The patch by Jakob Unterwurzacher adds support for the UCAN USB-CAN
adapter.

YueHaibing's patch replaces a open coded skb_put()+memset() by
skb_put_zero() in the CAN-dev infrastructure.

Zhu Yi provides a patch to enable multi-queue CAN devices.

Three patches by Luc Van Oostenryck fix the return value of several
driver's xmit function, I contribute a patch for the a fourth driver.

Fabio Estevam's patch switches the flexcan driver to SPDX identifier.

Two patches by Jia-Ju Bai replace the mdelay() by a usleep_range() in
the sja1000 drivers.

The next 6 patches are by Anssi Hannula and refactor the xilinx CAN
driver and add support for the xilinx CAN FD core.

A patch by Gustavo A. R. Silva adds fallthrough annotation to the
peak_usb driver.

5 patches by Stephane Grosjean for the peak CANFD driver do some
cleanups and provide more improvements for further firmware releases.

The remaining 13 patches are by Jimmy Assarsson and the first clean up
the kvaser_usb driver, so that the later patches add support for the
Kvaser USB hydra family.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-29 08:35:03 -07:00
Guillaume Nault
92ea4a7eec l2tp: drop ->mru from struct l2tp_session
This field is not used.

Treat PPPIOC*MRU the same way as PPPIOC*FLAGS: "get" requests return 0,
while "set" requests vadidate the user supplied pointer but discard its
value.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27 13:34:53 -07:00
Guillaume Nault
ae51a7c6d5 l2tp: ignore L2TP_ATTR_VLAN_ID netlink attribute
The value of this attribute is never used.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27 13:34:53 -07:00
Guillaume Nault
3ae5536b80 l2tp: ignore L2TP_ATTR_DATA_SEQ netlink attribute
The value of this attribute is never used.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27 13:34:53 -07:00
David S. Miller
7a49d3d4ea Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2018-07-27

1) Extend the output_mark to also support the input direction
   and masking the mark values before applying to the skb.

2) Add a new lookup key for the upcomming xfrm interfaces.

3) Extend the xfrm lookups to match xfrm interface IDs.

4) Add virtual xfrm interfaces. The purpose of these interfaces
   is to overcome the design limitations that the existing
   VTI devices have.

  The main limitations that we see with the current VTI are the
  following:

  VTI interfaces are L3 tunnels with configurable endpoints.
  For xfrm, the tunnel endpoint are already determined by the SA.
  So the VTI tunnel endpoints must be either the same as on the
  SA or wildcards. In case VTI tunnel endpoints are same as on
  the SA, we get a one to one correlation between the SA and
  the tunnel. So each SA needs its own tunnel interface.

  On the other hand, we can have only one VTI tunnel with
  wildcard src/dst tunnel endpoints in the system because the
  lookup is based on the tunnel endpoints. The existing tunnel
  lookup won't work with multiple tunnels with wildcard
  tunnel endpoints. Some usecases require more than on
  VTI tunnel of this type, for example if somebody has multiple
  namespaces and every namespace requires such a VTI.

  VTI needs separate interfaces for IPv4 and IPv6 tunnels.
  So when routing to a VTI, we have to know to which address
  family this traffic class is going to be encapsulated.
  This is a lmitation because it makes routing more complex
  and it is not always possible to know what happens behind the
  VTI, e.g. when the VTI is move to some namespace.

  VTI works just with tunnel mode SAs. We need generic interfaces
  that ensures transfomation, regardless of the xfrm mode and
  the encapsulated address family.

  VTI is configured with a combination GRE keys and xfrm marks.
  With this we have to deal with some extra cases in the generic
  tunnel lookup because the GRE keys on the VTI are actually
  not GRE keys, the GRE keys were just reused for something else.
  All extensions to the VTI interfaces would require to add
  even more complexity to the generic tunnel lookup.

  So to overcome this, we developed xfrm interfaces with the
  following design goal:

  It should be possible to tunnel IPv4 and IPv6 through the same
  interface.

  No limitation on xfrm mode (tunnel, transport and beet).

  Should be a generic virtual interface that ensures IPsec
  transformation, no need to know what happens behind the
  interface.

  Interfaces should be configured with a new key that must match a
  new policy/SA lookup key.

  The lookup logic should stay in the xfrm codebase, no need to
  change or extend generic routing and tunnel lookups.

  Should be possible to use IPsec hardware offloads of the underlying
  interface.

5) Remove xfrm pcpu policy cache. This was added after the flowcache
   removal, but it turned out to make things even worse.
   From Florian Westphal.

6) Allow to update the set mark on SA updates.
   From Nathan Harold.

7) Convert some timestamps to time64_t.
   From Arnd Bergmann.

8) Don't check the offload_handle in xfrm code,
   it is an opaque data cookie for the driver.
   From Shannon Nelson.

9) Remove xfrmi interface ID from flowi. After this pach
   no generic code is touched anymore to do xfrm interface
   lookups. From Benedict Wong.

10) Allow to update the xfrm interface ID on SA updates.
    From Nathan Harold.

11) Don't pass zero to ERR_PTR() in xfrm_resolve_and_create_bundle.
    From YueHaibing.

12) Return more detailed errors on xfrm interface creation.
    From Benedict Wong.

13) Use PTR_ERR_OR_ZERO instead of IS_ERR + PTR_ERR.
    From the kbuild test robot.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27 09:33:37 -07:00
Arnd Bergmann
75cbb3f1d8 bcache: stop using the deprecated get_seconds()
The get_seconds function is deprecated now since it returns a 32-bit
value that will eventually overflow, and we are replacing it throughout
the kernel with ktime_get_seconds() or ktime_get_real_seconds() that
return a time64_t.

bcache uses get_seconds() to read the current system time and store it in
the superblock as well as in uuid_entry structures that are user visible.

Unfortunately, the two structures in are still limited to 32 bits, so this
won't fix any real problems but will still overflow in year 2106. Let's
at least document that properly, in case we get an updated format in the
future it can be fixed. We still have a long time before the overflow
and checking the tools at https://github.com/koverstreet/bcache-tools
reveals no access to any of them.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-07-27 09:15:47 -06:00
Hans Verkuil
87e1a881e1 media: media.h: remove linux/version.h include
The media.h public header is one of only three public headers that include
linux/version.h. Drop it from media.h. It was only used for an obsolete
define.

It has to be added to media-device.c, since that source relied on media.h
to include it.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 07:52:39 -04:00
Mauro Carvalho Chehab
d0dd962d8a media: dvb: get rid of VIDEO_SET_SPU_PALETTE
No upstream drivers use it. It doesn't make any sense to have
a compat32 code for something that nobody uses upstream.

Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:41:35 -04:00
Guennadi Liakhovetski
e5225c820c media: uvcvideo: Send a control event when a Control Change interrupt arrives
UVC defines a method of handling asynchronous controls, which sends a
USB packet over the interrupt pipe. This patch implements support for
such packets by sending a control event to the user. Since this can
involve USB traffic and, therefore, scheduling, this has to be done
in a work queue.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:39:57 -04:00
Dan Murphy
3570a00841 can: uapi: can.h: Fix can error class mask dir path
The CAN error masks header file is in the
include/uapi directory.

Fix the path in the header to the correct location.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27 10:40:16 +02:00
Oleksandr Andrushchenko
932d656217 xen/gntdev: Add initial support for dma-buf UAPI
Add UAPI and IOCTLs for dma-buf grant device driver extension:
the extension allows userspace processes and kernel modules to
use Xen backed dma-buf implementation. With this extension grant
references to the pages of an imported dma-buf can be exported
for other domain use and grant references coming from a foreign
domain can be converted into a local dma-buf for local export.
Implement basic initialization and stubs for Xen DMA buffers'
support.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-07-26 23:05:14 -04:00
Oleksandr Andrushchenko
975ef7ff81 xen/gntdev: Allow mappings for DMA buffers
Allow mappings for DMA backed  buffers if grant table module
supports such: this extends grant device to not only map buffers
made of balloon pages, but also from buffers allocated with
dma_alloc_xxx.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-07-26 23:05:14 -04:00
Jeykumar Sankaran
2a8536f6e8 drm: add msm compressed format modifiers
Qualcomm Snapdragon chipsets uses compressed format
to optimize BW across multiple IP's. This change adds
needed modifier support in drm for a simple 4x4 tile
based compressed variants of base formats.

Changes in v3:
- Removed duplicate entry for DRM_FORMAT_MOD_QCOM_COMPRESSED (Rob Clark)
Changes in v4:
- Remove all modifiers aside from COMPRESSED, this includes tiled and
  10-bit

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-07-26 10:39:21 -04:00
Karsten Graul
603cc14984 net/smc: provide fallback reason code
Remember the fallback reason code and the peer diagnosis code for
smc sockets, and provide them in smc_diag.c to the netlink interface.
And add more detailed reason codes.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-25 22:25:53 -07:00
Raju Rangoju
7fc7a7cffa rdma/cxgb4: Add support for srq functions & structs
This patch adds kernel mode t4_srq structures and support functions,
uapi structures and defines, as well as firmware work request structures.

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-25 21:08:04 -06:00
Jason Gunthorpe
1250c3048c IB/uverbs: Handle IDR and FD types without truncation
Our ABI for write() uses a s32 for FDs and a u32 for IDRs, but internally
we ended up implicitly casting these ABI values into an 'int'. For ioctl()
we use a s64 for FDs and a u64 for IDRs, again casting to an int.

The various casts to int are all missing range checks which can cause
userspace values that should be considered invalid to be accepted.

Fix this by making the generic lookup routine accept a s64, which does not
truncate the write API's u32/s32 or the ioctl API's s64. Then push the
detailed range checking down to the actual type implementations to be
shared by both interfaces.

Finally, change the copy of the uobj->id to sign extend into a s64, so eg,
if we ever wish to return a negative value for a FD it is carried
properly.

This ensures that userspace values are never weirdly interpreted due to
the various trunctations and everything that is really out of range gets
an EINVAL.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-25 14:21:21 -06:00
Hans Verkuil
62c3fce041 media: videodev.h: add PIX_FMT_FWHT for use with vicodec
Add a new pixelformat for the vicodec software codec using the
Fast Walsh Hadamard Transform.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 08:09:00 -04:00
Hans Verkuil
45841a9773 media: media.h: add encoder/decoder functions for codecs
Add MEDIA_ENT_F_PROC_VIDEO_EN/DECODER to be used for the encoder
and decoder entities of codec hardware.

[mchehab+samsung@kernel.org: split description on two senteces by adding dots]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 08:07:58 -04:00
Hans Verkuil
f2399f7522 media: media.h: reorder video en/decoder functions
Keep the function defines in numerical order: 0x6000 comes after
0x2000, so move it back.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:51:05 -04:00
Hans Verkuil
7c8362c4b9 media: media.h: add MEDIA_ENT_F_DV_ENCODER
Add a new function for digital video encoders such as HDMI transmitters.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:50:09 -04:00
Hans Verkuil
d272bc92c4 media: rename MEDIA_ENT_F_DTV_DECODER to MEDIA_ENT_F_DV_DECODER
The use of 'DTV' is very confusing since it normally refers to Digital
TV e.g. DVB etc.

Instead use 'DV' (Digital Video), which nicely corresponds to the
DV Timings API used to configure such receivers and transmitters.

We keep an alias to avoid breaking userspace applications.

Since this alias is only available if __KERNEL__ is *not* defined
(i.e. it is only available for userspace, not kernelspace), any
drivers that use it also have to be converted to the new define.
These drivers are adv7604, adv7842 and tda1997x.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:49:28 -04:00
Hans Verkuil
588f4ee7e6 media: add flags field to struct media_v2_entity
The v2 entity structure never exposed the entity flags, which made it
impossible to detect connector or default entities.

It is really trivial to just expose this information, so implement this.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:46:24 -04:00
Hans Verkuil
30b914c8d8 media: add 'index' to struct media_v2_pad
The v2 pad structure never exposed the pad index, which made it impossible
to call the MEDIA_IOC_SETUP_LINK ioctl, which needs that information.

It is really trivial to just expose this information, so implement this.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:42:53 -04:00