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Instead of using the legacy GPIO API and keeping track on
polarity inversion semantics in the driver, switch to use
GPIO descriptors for this driver and change all consumers
in the process.
This makes it possible to retire platform data completely:
the only remaining platform data member was "wakeup" which
was intended to make the vbus interrupt wakeup capable,
but was not set by any users and thus remained unused. VBUS
was not waking any devices up. Leave a comment about it so
later developers using the platform can consider setting it
to always enabled so plugging in USB wakes up the platform.
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200123155013.93249-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull networking fixes from David Miller:
1) Fix non-blocking connect() in x25, from Martin Schiller.
2) Fix spurious decryption errors in kTLS, from Jakub Kicinski.
3) Netfilter use-after-free in mtype_destroy(), from Cong Wang.
4) Limit size of TSO packets properly in lan78xx driver, from Eric
Dumazet.
5) r8152 probe needs an endpoint sanity check, from Johan Hovold.
6) Prevent looping in tcp_bpf_unhash() during sockmap/tls free, from
John Fastabend.
7) hns3 needs short frames padded on transmit, from Yunsheng Lin.
8) Fix netfilter ICMP header corruption, from Eyal Birger.
9) Fix soft lockup when low on memory in hns3, from Yonglong Liu.
10) Fix NTUPLE firmware command failures in bnxt_en, from Michael Chan.
11) Fix memory leak in act_ctinfo, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
cxgb4: reject overlapped queues in TC-MQPRIO offload
cxgb4: fix Tx multi channel port rate limit
net: sched: act_ctinfo: fix memory leak
bnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.
bnxt_en: Fix ipv6 RFS filter matching logic.
bnxt_en: Fix NTUPLE firmware command failures.
net: systemport: Fixed queue mapping in internal ring map
net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
net: dsa: sja1105: Don't error out on disabled ports with no phy-mode
net: phy: dp83867: Set FORCE_LINK_GOOD to default after reset
net: hns: fix soft lockup when there is not enough memory
net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()
net/sched: act_ife: initalize ife->metalist earlier
netfilter: nat: fix ICMP header corruption on ICMP errors
net: wan: lapbether.c: Use built-in RCU list checking
netfilter: nf_tables: fix flowtable list del corruption
netfilter: nf_tables: fix memory leak in nf_tables_parse_netdev_hooks()
netfilter: nf_tables: remove WARN and add NLA_STRING upper limits
netfilter: nft_tunnel: ERSPAN_VERSION must not be null
netfilter: nft_tunnel: fix null-attribute check
...
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Pull drm fixes from Dave Airlie:
"Back from LCA2020, fixes wasn't too busy last week, seems to have
quieten down appropriately, some amdgpu, i915, then a core mst fix and
one fix for virtio-gpu and one for rockchip:
core mst:
- serialize down messages and clear timeslots are on unplug
amdgpu:
- Update golden settings for renoir
- eDP fix
i915:
- uAPI fix: Remove dash and colon from PMU names to comply with
tools/perf
- Fix for include file that was indirectly included
- Two fixes to make sure VMA are marked active for error capture
virtio:
- maintain obj reservation lock when submitting cmds
rockchip:
- increase link rate var size to accommodate rates"
* tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: Reorder detect_edp_sink_caps before link settings read.
drm/amdgpu: update goldensetting for renoir
drm/dp_mst: Have DP_Tx send one msg at a time
drm/dp_mst: clear time slots for ports invalid
drm/i915/pmu: Do not use colons or dashes in PMU names
drm/rockchip: fix integer type used for storing dp data rate
drm/i915/gt: Mark ring->vma as active while pinned
drm/i915/gt: Mark context->state vma as active while pinned
drm/i915/gt: Skip trying to unbind in restore_ggtt_mappings
drm/i915: Add missing include file <linux/math64.h>
drm/virtio: add missing virtio_gpu_array_lock_resv call
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull rseq fixes from Ingo Molnar:
"Two rseq bugfixes:
- CLONE_VM !CLONE_THREAD didn't work properly, the kernel would end
up corrupting the TLS of the parent. Technically a change in the
ABI but the previous behavior couldn't resonably have been relied
on by applications so this looks like a valid exception to the ABI
rule.
- Make the RSEQ_FLAG_UNREGISTER ABI behavior consistent with the
handling of other flags. This is not thought to impact any
applications either"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq: Unregister rseq for clone CLONE_VM
rseq: Reject unknown flags on rseq unregister
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
virtio: maintain obj reservation lock when submitting cmds (Gerd)
rockchip: increase link rate var size to accommodate rates (Tobias)
mst: serialize down messages and clear timeslots are on unplug (Wayne)
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tobias Schramm <t.schramm@manjaro.org>
Cc: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116162856.GA11524@art_vandelay
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Pull block fixes from Jens Axboe:
"Three fixes that should go into this release:
- The 32-bit segment size fix that I mentioned last week (Ming)
- Use uint for the block size (Mikulas)
- A null_blk zone write handling fix (Damien)"
* tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block:
block: fix an integer overflow in logical block size
null_blk: Fix zone write handling
block: fix get_max_segment_size() overflow on 32bit arch
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git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
Kishon writes:
phy: for 5.6
*) Add support in PHY core to create link between PHY consumer and PHY
provider
*) Add DisplayPort PHY configuration set to be used for negotiating the
configurations to be used between DisplayPort controller and
DisplayPort PHY
*) Add PHY wrapper driver (configure inputs to Cadence Sierra PHY) for
TI's J721E SoC and adapt Cadence Sierra PHY driver to be used for
J721E SoC (Supports USB and PCIe)
*) Add PHY driver for eMMC PHY in Intel LGM SoC
*) Add PHY support for 7216 and 7211 Broadcom SoCs which uses the new
Synopsys USB Controller
*) Add support for 16nm SATA PHY present in Broadcom 7216 SoC
*) Fix lost packet issue, fix MDIO from getting inaccessible, fix
occasional transaction failures, fix USB driver from crashing in
Broadcom USB PHY driver
*) Fix missing PCS SW reset in UFS PHY of Qualcomm SM8150
*) Use "struct phy_configure_opts_mipi_dphy" to pass parameters from
display controller to rockchip-inno-dsidphy
*) Other cleanups including compile testing for some of the PHY drivers,
fixing Kconfig indentation, duplicate writes in drivers etc.,
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* tag 'phy-for-5.6_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: (54 commits)
dt-bindings: phy: Add PHY_TYPE_DP definition
phy: ti: j721e-wiz: Fix return value check in wiz_probe()
dt-bindings: usb: Convert Allwinner A80 USB PHY controller to a schema
phy: intel-lgm-emmc: Fix warning by adding missing MODULE_LICENSE
phy: ti: j721e-wiz: Manage typec-gpio-dir
dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C dir GPIO
phy: cadence: Sierra: add phy_reset hook
phy: cadence: Sierra: remove redundant initialization of pointer regmap
phy: Add DisplayPort configuration options
phy: Enable compile testing for some of drivers
phy: mediatek: Fix Kconfig indentation
phy: intel-lgm-emmc: Add support for eMMC PHY
dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY
phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC
dt-bindings: phy: Document WIZ (SERDES wrapper) bindings
phy: cadence: Sierra: Use correct dev pointer in cdns_sierra_phy_remove()
phy: cadence: Sierra: Set cmn_refclk_dig_div/cmn_refclk1_dig_div frequency to 25MHz
phy: cadence: Sierra: Change MAX_LANES of Sierra to 16
phy: cadence: Sierra: Check for PLL lock during PHY power on
phy: cadence: Sierra: Get reset control "array" for each link
...
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Add definition for DisplayPort phy type.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"I've been sitting on these longer than I meant, so the patch count is
a bit higher than ideal for this part of the release. There's also
some reverts of double-applied patches that brings the diffstat up a
bit.
With that said, the biggest changes are:
- Revert of duplicate i2c device addition on two Aspeed (BMC)
Devicetrees.
- Move of two device nodes that got applied to the wrong part of the
tree on ASpeed G6.
- Regulator fix for Beaglebone X15 (adding 12/5V supplies)
- Use interrupts for keys on Amlogic SM1 to avoid missed polls
In addition to that, there is a collection of smaller DT fixes:
- Power supply assignment fixes for i.MX6
- Fix of interrupt line for magnetometer on i.MX8 Librem5 devkit
- Build fixlets (selects) for davinci/omap2+
- More interrupt number fixes for Stratix10, Amlogic SM1, etc.
- ... and more similar fixes across different platforms
And some non-DT stuff:
- optee fix to register multiple shared pages properly
- Clock calculation fixes for MMP3
- Clock fixes for OMAP as well"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (42 commits)
MAINTAINERS: Add myself as the co-maintainer for Actions Semi platforms
ARM: dts: imx7: Fix Toradex Colibri iMX7S 256MB NAND flash support
ARM: dts: imx6sll-evk: Remove incorrect power supply assignment
ARM: dts: imx6sl-evk: Remove incorrect power supply assignment
ARM: dts: imx6sx-sdb: Remove incorrect power supply assignment
ARM: dts: imx6qdl-sabresd: Remove incorrect power supply assignment
ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL
ARM: omap2plus: select RESET_CONTROLLER
ARM: davinci: select CONFIG_RESET_CONTROLLER
ARM: dts: aspeed: rainier: Fix fan fault and presence
ARM: dts: aspeed: rainier: Remove duplicate i2c busses
ARM: dts: aspeed: tacoma: Remove duplicate flash nodes
ARM: dts: aspeed: tacoma: Remove duplicate i2c busses
ARM: dts: aspeed: tacoma: Fix fsi master node
ARM: dts: aspeed-g6: Fix FSI master location
ARM: dts: mmp3: Fix the TWSI ranges
clk: mmp2: Fix the order of timer mux parents
ARM: mmp: do not divide the clock rate
arm64: dts: rockchip: Fix IR on Beelink A1
optee: Fix multi page dynamic shm pool alloc
...
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Daniel Borkmann says:
====================
pull-request: bpf 2020-01-15
The following pull-request contains BPF updates for your *net* tree.
We've added 12 non-merge commits during the last 9 day(s) which contain
a total of 13 files changed, 95 insertions(+), 43 deletions(-).
The main changes are:
1) Fix refcount leak for TCP time wait and request sockets for socket lookup
related BPF helpers, from Lorenz Bauer.
2) Fix wrong verification of ARSH instruction under ALU32, from Daniel Borkmann.
3) Batch of several sockmap and related TLS fixes found while operating
more complex BPF programs with Cilium and OpenSSL, from John Fastabend.
4) Fix sockmap to read psock's ingress_msg queue before regular sk_receive_queue()
to avoid purging data upon teardown, from Lingpeng Chen.
5) Fix printing incorrect pointer in bpftool's btf_dump_ptr() in order to properly
dump a BPF map's value with BTF, from Martin KaFai Lau.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Logical block size has type unsigned short. That means that it can be at
most 32768. However, there are architectures that can run with 64k pages
(for example arm64) and on these architectures, it may be possible to
create block devices with 64k block size.
For exmaple (run this on an architecture with 64k pages):
Mount will fail with this error because it tries to read the superblock using 2-sector
access:
device-mapper: writecache: I/O is not aligned, sector 2, size 1024, block size 65536
EXT4-fs (dm-0): unable to read superblock
This patch changes the logical block size from unsigned short to unsigned
int to avoid the overflow.
Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When sockmap sock with TLS enabled is removed we cleanup bpf/psock state
and call tcp_update_ulp() to push updates to TLS ULP on top. However, we
don't push the write_space callback up and instead simply overwrite the
op with the psock stored previous op. This may or may not be correct so
to ensure we don't overwrite the TLS write space hook pass this field to
the ULP and have it fixup the ctx.
This completes a previous fix that pushed the ops through to the ULP
but at the time missed doing this for write_space, presumably because
write_space TLS hook was added around the same time.
Fixes: 95fa145479fbc ("bpf: sockmap/tls, close can race with map free")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/bpf/20200111061206.8028-4-john.fastabend@gmail.com
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When a sockmap is free'd and a socket in the map is enabled with tls
we tear down the bpf context on the socket, the psock struct and state,
and then call tcp_update_ulp(). The tcp_update_ulp() call is to inform
the tls stack it needs to update its saved sock ops so that when the tls
socket is later destroyed it doesn't try to call the now destroyed psock
hooks.
This is about keeping stacked ULPs in good shape so they always have
the right set of stacked ops.
However, recently unhash() hook was removed from TLS side. But, the
sockmap/bpf side is not doing any extra work to update the unhash op
when is torn down instead expecting TLS side to manage it. So both
TLS and sockmap believe the other side is managing the op and instead
no one updates the hook so it continues to point at tcp_bpf_unhash().
When unhash hook is called we call tcp_bpf_unhash() which detects the
psock has already been destroyed and calls sk->sk_prot_unhash() which
calls tcp_bpf_unhash() yet again and so on looping and hanging the core.
To fix have sockmap tear down logic fixup the stale pointer.
Fixes: 5d92e631b8be ("net/tls: partially revert fix transition through disconnect with close")
Reported-by: syzbot+83979935eb6304f8cd46@syzkaller.appspotmail.com
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/bpf/20200111061206.8028-2-john.fastabend@gmail.com
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[Why]
Noticed this while testing MST with the 4 ports MST hub from
StarTech.com. Sometimes can't light up monitors normally and get the
error message as 'sideband msg build failed'.
Look into aux transactions, found out that source sometimes will send
out another down request before receiving the down reply of the
previous down request. On the other hand, in drm_dp_get_one_sb_msg(),
current code doesn't handle the interleaved replies case. Hence, source
can't build up message completely and can't light up monitors.
[How]
For good compatibility, enforce source to send out one down request at a
time. Add a flag, is_waiting_for_dwn_reply, to determine if the source
can send out a down request immediately or not.
- Check the flag before calling process_single_down_tx_qlock to send out
a msg
- Set the flag when successfully send out a down request
- Clear the flag when successfully build up a down reply
- Clear the flag when find erros during sending out a down request
- Clear the flag when find errors during building up a down reply
- Clear the flag when timeout occurs during waiting for a down reply
- Use drm_dp_mst_kick_tx() to try to send another down request in queue
at the end of drm_dp_mst_wait_tx_reply() (attempt to send out messages
in queue when errors occur)
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200113093649.11755-1-Wayne.Lin@amd.com
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Anatoly has been fuzzing with kBdysch harness and reported a hang in one
of the outcomes:
0: R1=ctx(id=0,off=0,imm=0) R10=fp0
0: (85) call bpf_get_socket_cookie#46
1: R0_w=invP(id=0) R10=fp0
1: (57) r0 &= 808464432
2: R0_w=invP(id=0,umax_value=808464432,var_off=(0x0; 0x30303030)) R10=fp0
2: (14) w0 -= 810299440
3: R0_w=invP(id=0,umax_value=4294967295,var_off=(0xcf800000; 0x3077fff0)) R10=fp0
3: (c4) w0 s>>= 1
4: R0_w=invP(id=0,umin_value=1740636160,umax_value=2147221496,var_off=(0x67c00000; 0x183bfff8)) R10=fp0
4: (76) if w0 s>= 0x30303030 goto pc+216
221: R0_w=invP(id=0,umin_value=1740636160,umax_value=2147221496,var_off=(0x67c00000; 0x183bfff8)) R10=fp0
221: (95) exit
processed 6 insns (limit 1000000) [...]
Taking a closer look, the program was xlated as follows:
# ./bpftool p d x i 12
0: (85) call bpf_get_socket_cookie#7800896
1: (bf) r6 = r0
2: (57) r6 &= 808464432
3: (14) w6 -= 810299440
4: (c4) w6 s>>= 1
5: (76) if w6 s>= 0x30303030 goto pc+216
6: (05) goto pc-1
7: (05) goto pc-1
8: (05) goto pc-1
[...]
220: (05) goto pc-1
221: (05) goto pc-1
222: (95) exit
Meaning, the visible effect is very similar to f54c7898ed1c ("bpf: Fix
precision tracking for unbounded scalars"), that is, the fall-through
branch in the instruction 5 is considered to be never taken given the
conclusion from the min/max bounds tracking in w6, and therefore the
dead-code sanitation rewrites it as goto pc-1. However, real-life input
disagrees with verification analysis since a soft-lockup was observed.
The bug sits in the analysis of the ARSH. The definition is that we shift
the target register value right by K bits through shifting in copies of
its sign bit. In adjust_scalar_min_max_vals(), we do first coerce the
register into 32 bit mode, same happens after simulating the operation.
However, for the case of simulating the actual ARSH, we don't take the
mode into account and act as if it's always 64 bit, but location of sign
bit is different:
dst_reg->smin_value >>= umin_val;
dst_reg->smax_value >>= umin_val;
dst_reg->var_off = tnum_arshift(dst_reg->var_off, umin_val);
Consider an unknown R0 where bpf_get_socket_cookie() (or others) would
for example return 0xffff. With the above ARSH simulation, we'd see the
following results:
[...]
1: R1=ctx(id=0,off=0,imm=0) R2_w=invP65535 R10=fp0
1: (85) call bpf_get_socket_cookie#46
2: R0_w=invP(id=0) R10=fp0
2: (57) r0 &= 808464432
-> R0_runtime = 0x3030
3: R0_w=invP(id=0,umax_value=808464432,var_off=(0x0; 0x30303030)) R10=fp0
3: (14) w0 -= 810299440
-> R0_runtime = 0xcfb40000
4: R0_w=invP(id=0,umax_value=4294967295,var_off=(0xcf800000; 0x3077fff0)) R10=fp0
(0xffffffff)
4: (c4) w0 s>>= 1
-> R0_runtime = 0xe7da0000
5: R0_w=invP(id=0,umin_value=1740636160,umax_value=2147221496,var_off=(0x67c00000; 0x183bfff8)) R10=fp0
(0x67c00000) (0x7ffbfff8)
[...]
In insn 3, we have a runtime value of 0xcfb40000, which is '1100 1111 1011
0100 0000 0000 0000 0000', the result after the shift has 0xe7da0000 that
is '1110 0111 1101 1010 0000 0000 0000 0000', where the sign bit is correctly
retained in 32 bit mode. In insn4, the umax was 0xffffffff, and changed into
0x7ffbfff8 after the shift, that is, '0111 1111 1111 1011 1111 1111 1111 1000'
and means here that the simulation didn't retain the sign bit. With above
logic, the updates happen on the 64 bit min/max bounds and given we coerced
the register, the sign bits of the bounds are cleared as well, meaning, we
need to force the simulation into s32 space for 32 bit alu mode.
Verification after the fix below. We're first analyzing the fall-through branch
on 32 bit signed >= test eventually leading to rejection of the program in this
specific case:
0: R1=ctx(id=0,off=0,imm=0) R10=fp0
0: (b7) r2 = 808464432
1: R1=ctx(id=0,off=0,imm=0) R2_w=invP808464432 R10=fp0
1: (85) call bpf_get_socket_cookie#46
2: R0_w=invP(id=0) R10=fp0
2: (bf) r6 = r0
3: R0_w=invP(id=0) R6_w=invP(id=0) R10=fp0
3: (57) r6 &= 808464432
4: R0_w=invP(id=0) R6_w=invP(id=0,umax_value=808464432,var_off=(0x0; 0x30303030)) R10=fp0
4: (14) w6 -= 810299440
5: R0_w=invP(id=0) R6_w=invP(id=0,umax_value=4294967295,var_off=(0xcf800000; 0x3077fff0)) R10=fp0
5: (c4) w6 s>>= 1
6: R0_w=invP(id=0) R6_w=invP(id=0,umin_value=3888119808,umax_value=4294705144,var_off=(0xe7c00000; 0x183bfff8)) R10=fp0
(0x67c00000) (0xfffbfff8)
6: (76) if w6 s>= 0x30303030 goto pc+216
7: R0_w=invP(id=0) R6_w=invP(id=0,umin_value=3888119808,umax_value=4294705144,var_off=(0xe7c00000; 0x183bfff8)) R10=fp0
7: (30) r0 = *(u8 *)skb[808464432]
BPF_LD_[ABS|IND] uses reserved fields
processed 8 insns (limit 1000000) [...]
Fixes: 9cbe1f5a32dc ("bpf/verifier: improve register value range tracking with ARSH")
Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200115204733.16648-1-daniel@iogearbox.net
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Pull vfs fixes from Al Viro:
"Fixes for mountpoint_last() bugs (by converting to use of
lookup_last()) and an autofs regression fix from this cycle (caused by
follow_managed() breakage introduced in barrier fixes series)"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix autofs regression caused by follow_managed() changes
reimplement path_mountpoint() with less magic
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
A few fixes:
* -O3 enablement fallout, thanks to Arnd who ran this
* fixes for a few leaks, thanks to Felix
* channel 12 regulatory fix for custom regdomains
* check for a crash reported by syzbot
(NULL function is called on drivers that don't have it)
* fix TKIP replay protection after setup with some APs
(from Jouni)
* restrict obtaining some mesh data to avoid WARN_ONs
* fix deadlocks with auto-disconnect (socket owner)
* fix radar detection events with multiple devices
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The last user of the phy generic platform data was
deleted in commit 1e041b6f313aaa966612a7e415cfc09c90d6b829
("usb: dwc3: exynos: Remove dead code"). So get rid of
the platform data, which rids us of another consumer of
the legacy GPIO API at the same time. Make sure we
only inlcude <linux/gpio/consumer.h> which is all we use.
Alter the usb_phy_gen_create_phy() function prototype to
not pass any platform data as this is just hardcoded to
NULL at all locations calling it in the kernel.
Move the devm_gpiod_get* calls out of the if (of_node)
parenthesis, as these calls are generic and do not depend
on device tree, they are used by any hardware description.
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In case a radar event of CAC_FINISHED or RADAR_DETECTED
happens during another phy is during CAC we might need
to cancel that CAC.
If we got a radar in a channel that another phy is now
doing CAC on then the CAC should be canceled there.
If, for example, 2 phys doing CAC on the same channels,
or on comptable channels, once on of them will finish his
CAC the other might need to cancel his CAC, since it is no
longer relevant.
To fix that the commit adds an callback and implement it in
mac80211 to end CAC.
This commit also adds a call to said callback if after a radar
event we see the CAC is no longer relevant
Signed-off-by: Orr Mazor <Orr.Mazor@tandemg.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20191222145449.15792-1-Orr.Mazor@tandemg.com
[slightly reformat/reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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... and get rid of a bunch of bugs in it. Background:
the reason for path_mountpoint() is that umount() really doesn't
want attempts to revalidate the root of what it's trying to umount.
The thing we want to avoid actually happen from complete_walk();
solution was to do something parallel to normal path_lookupat()
and it both went overboard and got the boilerplate subtly
(and not so subtly) wrong.
A better solution is to do pretty much what the normal path_lookupat()
does, but instead of complete_walk() do unlazy_walk(). All it takes
to avoid that ->d_weak_revalidate() call... mountpoint_last() goes
away, along with everything it got wrong, and so does the magic around
LOOKUP_NO_REVAL.
Another source of bugs is that when we traverse mounts at the final
location (and we need to do that - umount . expects to get whatever's
overmounting ., if any, out of the lookup) we really ought to take
care of ->d_manage() - as it is, manual umount of autofs automount
in progress can lead to unpleasant surprises for the daemon. Easily
solved by using handle_lookup_down() instead of follow_mount().
Tested-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
Pull asm-generic fixes from Arnd Bergmann:
"Here are two bugfixes from Mike Rapoport, both fixing compile-time
errors for the nds32 architecture that were recently introduced"
* tag 'asm-generic-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
nds32: fix build failure caused by page table folding updates
asm-generic/nds32: don't redefine cacheflush primitives
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Merge misc fixes from David Howells.
Two afs fixes and a key refcounting fix.
* dhowells:
afs: Fix afs_lookup() to not clobber the version on a new dentry
afs: Fix use-after-loss-of-ref
keys: Fix request_key() cache
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afs_lookup() has a tracepoint to indicate the outcome of
d_splice_alias(), passing it the inode to retrieve the fid from.
However, the function gave up its ref on that inode when it called
d_splice_alias(), which may have failed and dropped the inode.
Fix this by caching the fid.
Fixes: 80548b03991f ("afs: Add more tracepoints")
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Allow DisplayPort PHYs to be configured through the generic
functions through a custom structure added to the generic union.
The configuration structure is used for reconfiguration of
DisplayPort PHYs during link training operation.
The parameters added here are the ones defined in the DisplayPort
spec v1.4 which include link rate, number of lanes, voltage swing
and pre-emphasis.
Add the DisplayPort phy mode to the generic phy_mode enum.
Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Commit 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem)
FS") introduced a new khugepaged scan result: SCAN_PAGE_HAS_PRIVATE, but
the corresponding description for trace events were not added.
Link: http://lkml.kernel.org/r/1574793844-2914-1-git-send-email-yang.shi@linux.alibaba.com
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 96a2b03f281d ("mm, debug_pagelloc: use static keys to enable
debugging") has introduced a static key to reduce overhead when
debug_pagealloc is compiled in but not enabled. It relied on the
assumption that jump_label_init() is called before parse_early_param()
as in start_kernel(), so when the "debug_pagealloc=on" option is parsed,
it is safe to enable the static key.
However, it turns out multiple architectures call parse_early_param()
earlier from their setup_arch(). x86 also calls jump_label_init() even
earlier, so no issue was found while testing the commit, but same is not
true for e.g. ppc64 and s390 where the kernel would not boot with
debug_pagealloc=on as found by our QA.
To fix this without tricky changes to init code of multiple
architectures, this patch partially reverts the static key conversion
from 96a2b03f281d. Init-time and non-fastpath calls (such as in arch
code) of debug_pagealloc_enabled() will again test a simple bool
variable. Fastpath mm code is converted to a new
debug_pagealloc_enabled_static() variant that relies on the static key,
which is enabled in a well-defined point in mm_init() where it's
guaranteed that jump_label_init() has been called, regardless of
architecture.
[sfr@canb.auug.org.au: export _debug_pagealloc_enabled_early]
Link: http://lkml.kernel.org/r/20200106164944.063ac07b@canb.auug.org.au
Link: http://lkml.kernel.org/r/20191219130612.23171-1-vbabka@suse.cz
Fixes: 96a2b03f281d ("mm, debug_pagelloc: use static keys to enable debugging")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Qian Cai <cai@lca.pw>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently slab percpu vmstats are flushed twice: during the memcg
offlining and just before freeing the memcg structure. Each time percpu
counters are summed, added to the atomic counterparts and propagated up
by the cgroup tree.
The second flushing is required due to how recursive vmstats are
implemented: counters are batched in percpu variables on a local level,
and once a percpu value is crossing some predefined threshold, it spills
over to atomic values on the local and each ascendant levels. It means
that without flushing some numbers cached in percpu variables will be
dropped on floor each time a cgroup is destroyed. And with uptime the
error on upper levels might become noticeable.
The first flushing aims to make counters on ancestor levels more
precise. Dying cgroups may resume in the dying state for a long time.
After kmem_cache reparenting which is performed during the offlining
slab counters of the dying cgroup don't have any chances to be updated,
because any slab operations will be performed on the parent level. It
means that the inaccuracy caused by percpu batching will not decrease up
to the final destruction of the cgroup. By the original idea flushing
slab counters during the offlining should minimize the visible
inaccuracy of slab counters on the parent level.
The problem is that percpu counters are not zeroed after the first
flushing. So every cached percpu value is summed twice. It creates a
small error (up to 32 pages per cpu, but usually less) which accumulates
on parent cgroup level. After creating and destroying of thousands of
child cgroups, slab counter on parent level can be way off the real
value.
For now, let's just stop flushing slab counters on memcg offlining. It
can't be done correctly without scheduling a work on each cpu: reading
and zeroing it during css offlining can race with an asynchronous
update, which doesn't expect values to be changed underneath.
With this change, slab counters on parent level will become eventually
consistent. Once all dying children are gone, values are correct. And
if not, the error is capped by 32 * NR_CPUS pages per dying cgroup.
It's not perfect, as slab are reparented, so any updates after the
reparenting will happen on the parent level. It means that if a slab
page was allocated, a counter on child level was bumped, then the page
was reparented and freed, the annihilation of positive and negative
counter values will not happen until the child cgroup is released. It
makes slab counters different from others, and it might want us to
implement flushing in a correct form again. But it's also a question of
performance: scheduling a work on each cpu isn't free, and it's an open
question if the benefit of having more accurate counters is worth it.
We might also consider flushing all counters on offlining, not only slab
counters.
So let's fix the main problem now: make the slab counters eventually
consistent, so at least the error won't grow with uptime (or more
precisely the number of created and destroyed cgroups). And think about
the accuracy of counters separately.
Link: http://lkml.kernel.org/r/20191220042728.1045881-1-guro@fb.com
Fixes: bee07b33db78 ("mm: memcontrol: flush percpu slab vmstats on kmem offlining")
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"Two fixes for RISC-V:
- Clear FP registers during boot when FP support is present, rather
than when they aren't present
- Move the header files associated with the SiFive L2 cache
controller to drivers/soc (where the code was recently moved)"
* tag 'riscv/for-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fixup obvious bug for fp-regs reset
riscv: move sifive_l2_cache.h to include/soc
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The commit 9209fb51896f ("riscv: move sifive_l2_cache.c to drivers/soc")
moves the sifive L2 cache driver to driver/soc. It did not move the
header file along with the driver. Therefore this patch moves the header
file to driver/soc
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[paul.walmsley@sifive.com: updated to fix the include guard]
Fixes: 9209fb51896f ("riscv: move sifive_l2_cache.c to drivers/soc")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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The function to obtain a unique snapshot id was mistakenly typo'd as
devlink_region_shapshot_id_get. Fix this typo by renaming the function
and all of its users.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/fixes
arm-soc: Amlogic fixes for v5.5-rc
* tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
arm64: dts: meson-sm1-sei610: add gpio bluetooth interrupt
dt-bindings: reset: meson8b: fix duplicate reset IDs
soc: amlogic: meson-ee-pwrc: propagate errors from pm_genpd_init()
soc: amlogic: meson-ee-pwrc: propagate PD provider registration errors
ARM: dts: meson8: fix the size of the PMU registers
arm64: dts: meson-sm1-sei610: gpio-keys: switch to IRQs
Link: https://lore.kernel.org/r/7hmuaweavi.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull block fixes from Jens Axboe:
"A few fixes that should go into this round.
This pull request contains two NVMe fixes via Keith, removal of a dead
function, and a fix for the bio op for read truncates (Ming)"
* tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
nvmet: fix per feat data len for get_feature
nvme: Translate more status codes to blk_status_t
fs: move guard_bio_eod() after bio_set_op_attrs
block: remove unused mp_bvec_last_segment
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD fixes from Miquel Raynal:
"MTD:
- sm_ftl: Fix NULL pointer warning.
Raw NAND:
- Cadence: fix compile testing.
- STM32: Avoid locking.
Onenand:
- Fix several sparse/build warnings.
SPI-NOR:
- Add a flag to fix interaction with Micron parts"
* tag 'mtd/fixes-for-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spi-nor: Fix the writing of the Status Register on micron flashes
mtd: sm_ftl: fix NULL pointer warning
mtd: onenand: omap2: Pass correct flags for prep_dma_memcpy
mtd: onenand: samsung: Fix iomem access with regular memcpy
mtd: onenand: omap2: Fix errors in style
mtd: cadence: Fix cast to pointer from integer of different size warning
mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Just a few small fixups here"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: imx_sc_key - only take the valid data from SCU firmware as key state
Input: add safety guards to input_set_keycode()
Input: input_event - fix struct padding on sparc64
Input: uinput - always report EPOLLOUT
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Correct mispelling, spacing, and coding style flaws caught by
checkpatch.pl script in the Omap2 Onenand driver .
Signed-off-by: Amir Mahdi Ghorbanian <indigoomega021@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Pull networking fixes from David Miller:
1) Missing netns pointer init in arp_tables, from Florian Westphal.
2) Fix normal tcp SACK being treated as D-SACK, from Pengcheng Yang.
3) Fix divide by zero in sch_cake, from Wen Yang.
4) Len passed to skb_put_padto() is wrong in qrtr code, from Carl
Huang.
5) cmd->obj.chunk is leaked in sctp code error paths, from Xin Long.
6) cgroup bpf programs can be released out of order, fix from Roman
Gushchin.
7) Make sure stmmac debugfs entry name is changed when device name
changes, from Jiping Ma.
8) Fix memory leak in vlan_dev_set_egress_priority(), from Eric
Dumazet.
9) SKB leak in lan78xx usb driver, also from Eric Dumazet.
10) Ridiculous TCA_FQ_QUANTUM values configured can cause loops in fq
packet scheduler, reject them. From Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
tipc: fix wrong connect() return code
tipc: fix link overflow issue at socket shutdown
netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present
netfilter: conntrack: dccp, sctp: handle null timeout argument
atm: eni: fix uninitialized variable warning
macvlan: do not assume mac_header is set in macvlan_broadcast()
net: sch_prio: When ungrafting, replace with FIFO
mlxsw: spectrum_qdisc: Ignore grafting of invisible FIFO
MAINTAINERS: Remove myself as co-maintainer for qcom-ethqos
gtp: fix bad unlock balance in gtp_encap_enable_socket
pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
tipc: remove meaningless assignment in Makefile
tipc: do not add socket.o to tipc-y twice
net: stmmac: dwmac-sun8i: Allow all RGMII modes
net: stmmac: dwmac-sunxi: Allow all RGMII modes
net: usb: lan78xx: fix possible skb leak
net: stmmac: Fixed link does not need MDIO Bus
vlan: vlan_changelink() should propagate errors
vlan: fix memory leak in vlan_dev_set_egress_priority
stmmac: debugfs entry name is not be changed when udev rename device name.
...
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It is much more intuitive if reset is treated as asserted when GPIO value
is set to 1. All NVIDIA Tegra device-trees are properly specifying active
state of the reset-GPIO since 2013, let's clean up that part of the code.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-14-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Now drivers (like NVIDIA Tegra USB PHY for example) will be able to
benefit from the resource-managed variant, making driver's code a bit
cleaner.
Suggested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-11-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The PHY driver should keep track of the enable state, otherwise enable
refcount is screwed if USB driver tries to enable PHY when it is already
enabled. This will be the case for ChipIdea and Tegra EHCI drivers once
PHY driver will gain support for the init/shutdown callbacks.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106013416.9604-5-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Defining the USB modes from the latest USB Power Delivery
Specification - USB 2.0, USB 3.2 and USB4 - as special modal
states just like the Accessory Modes.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-14-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Passing all the details that the alternate mode drivers
provide to the mux drivers during mode changes.
The mux drivers will in practice need to be able to make
decisions on their own. It is not enough that they get only
the requested port state. With the Thunderbolt 3 alternate
mode for example the mux driver will need to consider also
the capabilities of the cable before configuring the mux.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-13-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adding definitions for USB Type-C Specification Release 1.3,
1.4 and 2.0.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-12-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Discover Identity command response has also 3 product type
specific VDOs on top of ID Header VDO, Cert Stat VDO and
Product VDO.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-11-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The latest version of the USB Power Delivery Specification
R3.0 added UFP and DFP product types for the Discover
Identity message. Both types can be used for example for
checking the USB capability of the partner, which means the
USB modes (USB 2.0, USB 3.0 and USB4) that the partner
device supports.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-10-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Version 2.0 of the USB Power Delivery Specification R3.0
defines a new message called Enter_USB, which is made with
USB4 in mind. Enter_USB message is in practice the same as
the Enter Mode command (used when entering alternate modes)
that just needs to be used when entering USB4 mode.
The message does also support entering USB 2.0 or USB 3.2
mode instead of USB4 mode, but it is only required with
USB4. I.e. with USB2 and USB3 Enter_USB message is optional.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-9-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Thunderbolt 3, and probable USB4 too, will need to be able
to get details about the cables. Adding typec_cable_get()
function that the alternate mode drivers can use to gain
access to gain access to the cable.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Enter Mode Command may contain one VDO.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20191230142611.24921-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Missing netns context in arp_tables, from Florian Westphal.
2) Underflow in flowtable reference counter, from wenxu.
3) Fix incorrect ethernet destination address in flowtable offload,
from wenxu.
4) Check for status of neighbour entry, from wenxu.
5) Fix NAT port mangling, from wenxu.
6) Unbind callbacks from destroy path to cleanup hardware properly
on flowtable removal.
7) Fix missing casting statistics timestamp, add nf_flowtable_time_stamp
and use it.
8) NULL pointer exception when timeout argument is null in conntrack
dccp and sctp protocol helpers, from Florian Westphal.
9) Possible nul-dereference in ipset with IPSET_ATTR_LINENO, also from
Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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