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Author SHA1 Message Date
Stephen Boyd
bd5e2ea291 Merge branch 'clk-at91' into clk-next 
* clk-at91:
  clk: at91: programmable: remove unneeded register read
  clk: at91: optimize clk_round_rate() for AUDIO_PLL
  clk: at91: enable AUDIOPLL as source for PCKx on SAMA5D2
 2019-03-08 10:29:47 -08:00
Stephen Boyd
efb1e0b071 Merge branches 'clk-ingenic', 'clk-mtk-mux', 'clk-qcom-sdm845-pcie', 'clk-mtk-crit' and 'clk-mtk' into clk-next 
* clk-ingenic:
  clk: ingenic: Remove set but not used variable 'enable'
  clk: ingenic: Fix doc of ingenic_cgu_div_info
  clk: ingenic: Fix round_rate misbehaving with non-integer dividers
  clk: ingenic: jz4740: Fix gating of UDC clock

* clk-mtk-mux:
  clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
  clk: mediatek: add MUX_GATE_FLAGS_2

* clk-qcom-sdm845-pcie:
  clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks

* clk-mtk-crit:
  clk: mediatek: Mark bus and DRAM related clocks as critical
  clk: mediatek: Add flags to mtk_gate
  clk: mediatek: Add MUX_FLAGS macro

* clk-mtk:
  clk: mediatek: correct cpu clock name for MT8173 SoC
 2019-03-08 10:29:30 -08:00
Stephen Boyd
75f486c015 Merge branches 'clk-qcom-msm8998', 'clk-fractional-parent', 'clk-x86-mv' and 'clk-SA-fixes' into clk-next 
- Updates for qcom MSM8998 GCC clks
 - qcom MSM8998 RPM managed clks
 - Random static analysis fixes for clk drivers

* clk-qcom-msm8998:
  clk: qcom: Make common clk_hw registrations
  clk: qcom: smd: Add support for MSM8998 rpm clocks
  clk: qcom: Skip halt checks on gcc_usb3_phy_pipe_clk for 8998
  clk: qcom: Add missing freq for usb30_master_clk on 8998
  clk: qcom: Add CLK_SET_RATE_PARENT for 8998 branch clocks

* clk-fractional-parent:
  clk: fractional-divider: check parent rate only if flag is set

* clk-x86-mv:
  clk: x86: Move clk-lpss.h to platform_data/x86

* clk-SA-fixes:
  clk: mediatek: fix platform_no_drv_owner.cocci warnings
  clk: tegra: dfll: Fix debugfs_simple_attr.cocci warnings
  clk: qoriq: Improve an error message
 2019-03-08 10:29:15 -08:00
Stephen Boyd
461ea6ab2c Merge branches 'clk-qcom-rpmh', 'clk-gpio-sleep', 'clk-stm32mp1', 'clk-qcom-qcs404' and 'clk-actions-s500' into clk-next 
- IPA clk support on Qualcomm RPMh clk controllers
 - Support sleeping gpios in clk-gpio type
 - Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
 - Actions Semi S500 SoC clk support

* clk-qcom-rpmh:
  clk: qcom: clk-rpmh: Add IPA clock support

* clk-gpio-sleep:
  clk: clk-gpio: add support for sleeping GPIOs in gpio-gate-clk

* clk-stm32mp1:
  dt-bindings: clock: remove unused definition for stm32mp1
  clk: stm32mp1: fix bit width of hse_rtc divider
  clk: stm32mp1: remove unnecessary CLK_DIVIDER_ALLOW_ZERO flag
  clk: stm32mp1: fix HSI divider flag
  clk: stm32mp1: fix mcu divider table
  clk: stm32mp1: set ck_csi as critical clock
  clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks
  clk: stm32mp1: parent clocks update

* clk-qcom-qcs404:
  clk: qcom: gcc-qcs404: Add cfg_offset for blsp1_uart3 clock
  clk: qcom: clk-rcg2: Introduce a cfg offset for RCGs
  clk: qcom: remove empty lines in clk-rcg.h

* clk-actions-s500:
  clk: actions: Add clock driver for S500 SoC
  dt-bindings: clock: Add DT bindings for Actions Semi S500 CMU
  clk: actions: Add configurable PLL delay
 2019-03-08 10:27:52 -08:00
Stephen Boyd
e7faa095cb Merge branches 'clk-imx', 'clk-samsung', 'clk-ti', 'clk-uniphier-gear' and 'clk-mmp2-lcdc' into clk-next 
- Split LCDC into two clks on the Marvell MMP2 SoC

* clk-imx:
  clk: imx8mq: add GPIO clocks to clock tree
  clk: imx: Refactor entire sccg pll clk
  clk: imx: scu: add cpu frequency scaling support
  clk: imx: imx8mm: Mark init function __init
  clk: imx8mq: Add the missing ARM clock
  dt-bindings: imx8mq-clock: Add the missing ARM clock
  clk: imx: imx8mq: Fix the rate propagation for arm pll
  clk: imx8mq: Add support for the CLKO1 clock
  clk: imx8mq: Fix the CLKO2 source select list
  clk: imx8mq: Add missing M4 clocks
  clk: imx: Add clock driver support for imx8mm
  dt-bindings: imx: Add clock binding doc for imx8mm
  clk: imx: Add PLLs driver for imx8mm soc
  clk: imx5: add imx5_SCC2_IPG_GATE
  clk: imx: scu: add set parent support
  clk: imx: scu: add fallback compatible string support
  clk: imx8mq: Make parent names arrays const pointers
  clk: imx: Make parents const pointer in mux wrappers
  clk: imx: Make parent_names const pointer in composite-8m

* clk-samsung:
  clk: samsung: s3c2443: Mark expected switch fall-through
  clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
  clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
  clk: samsung: exynos5433: Add selected IMEM clocks
  clk: samsung: dt-bindings: Document Exynos5433 IMEM CMU
  clk: samsung: exynos5433: Fix name typo in sssx
  clk: samsung: exynos5433: Fix definition of CLK_ACLK_IMEM_{200, 266} clocks
  clk: samsung: dt-bindings: Add Exynos5433 IMEM CMU clock IDs

* clk-ti:
  clk: clk-twl6040: Fix imprecise external abort for pdmclk
  ARM: OMAP2+: hwmod: disable ick autoidling when a hwmod requires that
  clk: ti: check clock type before doing autoidle ops
  clk: ti: add a usecount for autoidle
  clk: ti: generalize the init sequence of clk_hw_omap clocks
  clk: ti: remove usage of CLK_IS_BASIC
  clk: ti: add new API for checking if a provided clock is an OMAP clock
  clk: ti: move clk_hw_omap list handling under generic part of the driver

* clk-uniphier-gear:
  clk: uniphier: Fix update register for CPU-gear

* clk-mmp2-lcdc:
  clk: mmp2: separate LCDC peripheral clk form the display clock
  dt-bindings: marvell,mmp2: Add clock id for the LCDC clock
 2019-03-08 10:27:40 -08:00
Stephen Boyd
3f8e7e7247 Merge branches 'clk-optional', 'clk-devm-clkdev-register', 'clk-allwinner', 'clk-meson' and 'clk-renesas' into clk-next 
- Add a {devm_}clk_get_optional() API
 - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups

* clk-optional:
  clk: Add (devm_)clk_get_optional() functions
  clk: Add comment about __of_clk_get_by_name() error values

* clk-devm-clkdev-register:
  clk: clk-st: avoid clkdev lookup leak at remove
  clk: clk-max77686: Clean clkdev lookup leak and use devm
  clkdev: add managed clkdev lookup registration

* clk-allwinner:
  clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it

* clk-meson: (22 commits)
  clk: meson: meson8b: fix the naming of the APB clocks
  dt-bindings: clock: meson8b: add APB clock definition
  clk: meson: Add G12A AO Clock + Reset Controller
  dt-bindings: clk: add G12A AO Clock and Reset Bindings
  clk: meson: factorise meson64 peripheral clock controller drivers
  clk: meson: g12a: add peripheral clock controller
  dt-bindings: clk: meson: add g12a periph clock controller bindings
  clk: meson: pll: update driver for the g12a
  clk: meson: rework and clean drivers dependencies
  clk: meson: axg-audio does not require syscon
  clk: meson: use CONFIG_ARCH_MESON to enter meson clk directory
  clk: export some clk_hw function symbols for module drivers
  clk: meson: ao-clkc: claim clock controller input clocks from DT
  clk: meson: axg: claim clock controller input clock from DT
  clk: meson: gxbb: claim clock controller input clock from DT
  clk: meson: meson8b: add the GPU clock tree
  clk: meson: meson8b: use a separate clock table for Meson8
  clk: meson: axg-ao: add 32k generation subtree
  clk: meson: gxbb-ao: replace cec-32k with the dual divider
  clk: meson: add dual divider clock driver
  ...

* clk-renesas:
  clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Add TMU clock
  clk: renesas: r8a77980: Add RPC clocks
  clk: renesas: rcar-gen3: Add RPC clocks
  clk: renesas: rcar-gen3: Add spinlock
  clk: renesas: rcar-gen3: Factor out cpg_reg_modify()
  clk: renesas: r8a774c0: Correct parent clock of DU
  clk: renesas: r8a774a1: Add missing CANFD clock
  clk: renesas: r8a774c0: Add missing CANFD clock
 2019-03-08 10:27:21 -08:00
Stephen Boyd
7e2570031a Merge branches 'clk-of-refcount', 'clk-mmio-fixed-clock', 'clk-remove-clps', 'clk-socfpga-parent' and 'clk-struct-size' into clk-next 
- Various DT of_node refcount fixes
 - Support for fixed rate clks populated from an MMIO register
 - Remove clps711x driver as the board support is gone

* clk-of-refcount:
  clk: dove: fix refcount leak in dove_clk_init()
  clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
  clk: armada-xp: fix refcount leak in axp_clk_init()
  clk: kirkwood: fix refcount leak in kirkwood_clk_init()
  clk: armada-370: fix refcount leak in a370_clk_init()
  clk: vf610: fix refcount leak in vf610_clocks_init()
  clk: imx7d: fix refcount leak in imx7d_clocks_init()
  clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
  clk: imx6q: fix refcount leak in imx6q_clocks_init()
  clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
  clk: socfpga: fix refcount leak
  clk: ti: fix refcount leak in ti_dt_clocks_register()
  clk: qoriq: fix refcount leak in clockgen_init()
  clk: highbank: fix refcount leak in hb_clk_init()

* clk-mmio-fixed-clock:
  clk: Add Fixed MMIO clock driver
  dt-bindings: clk: Add bindings for Fixed MMIO clock

* clk-remove-clps:
  clk: clps711x: Remove board support

* clk-socfpga-parent:
  clk: socfpga: Don't have get_parent for single parent ops

* clk-struct-size:
  clk: imx: imx7ulp: use struct_size() in kzalloc()
 2019-03-08 10:26:59 -08:00
Anson Huang
0c91c11c7d clk: imx8mq: add GPIO clocks to clock tree 
i.MX8MQ has clock gate for each GPIO bank, add them
into clock tree for GPIO driver to manage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-28 10:28:28 -08:00
Seiya Wang
64f4466c88 clk: mediatek: correct cpu clock name for MT8173 SoC 
Correct cpu clock name from ca57 to ca72 since MT8173 does use cortex-a72.

Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 10:17:40 -08:00
Abel Vesa
e9dda4af68 clk: imx: Refactor entire sccg pll clk 
Make the entire combination of plls to be one single clock. The parents used
for bypasses are specified each as an index in the parents list.
The determine_rate does a lookup throughout all the possible combinations
for all the divs and returns the best possible 'setup' which in turn is used
by set_rate later to set up all the divs and bypasses.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Tested-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 10:09:31 -08:00
Anson Huang
3b9ea606cd clk: imx: scu: add cpu frequency scaling support 
On NXP's i.MX SoCs with system controller inside, CPU frequency
scaling can ONLY be done by system controller firmware, and it
can ONLY be requested from secure mode, so Linux kernel has to
call ARM SMC to trap to ARM-Trusted-Firmware to request system
controller firmware to do CPU frequency scaling.

This patch adds i.MX system controller CPU frequency scaling support,
it reuses cpufreq-dt driver and implement the CPU frequency scaling
inside SCU clock driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 10:03:38 -08:00
Jasper Mattsson
b35656de2a clk: mediatek: Mark bus and DRAM related clocks as critical 
Currently, DRAM-related clocks are not marked with CLK_IS_CRITICAL
for MT6797. This causes memory corruption when the system is
booted without clk_ignore_unused.
This patch marks MUX ddrphycfg_sel as well as gates infra_dramc_f26m
and infra_dramc_b_f26m as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 09:54:50 -08:00
Jasper Mattsson
5a1cc4c27a clk: mediatek: Add flags to mtk_gate 
This is required to mark gates as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Acked-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 09:53:39 -08:00
Jasper Mattsson
03c4fda603 clk: mediatek: Add MUX_FLAGS macro 
This is required to mark outputs of certain MUXes as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Acked-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 09:53:30 -08:00
Bjorn Andersson
4b5a59a265 clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks 
The PCIe PIPE clock in the GCC is fed by the PIPE clock coming from the
PHY, describe this relationship.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 09:41:52 -08:00
YueHaibing
635bd69bbe clk: ingenic: Remove set but not used variable 'enable' 
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/clk/ingenic/cgu.c: In function 'ingenic_pll_recalc_rate':
drivers/clk/ingenic/cgu.c:86:15: warning:
 variable 'enable' set but not used [-Wunused-but-set-variable]

It's not used after commit ab27eb4bc3 ("clk: ingenic: Add code to
enable/disable PLLs")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 09:41:04 -08:00
Nicolas Ferre
97d010dc42 clk: at91: programmable: remove unneeded register read 
This register read is a leftover of a previous read/modify/write. We now use
regmap_update_bits(), so we don't need it anymore.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-25 09:23:45 -08:00
chunhui dai
d3174bc836 clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel 
The MUX clock of dpi1_sel should select the closet clock for itself.
We could add this flag to enable this function of MUX in CCF.

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: wangyan wang <wangyan.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-25 09:19:33 -08:00
chunhui dai
b026a7eca1 clk: mediatek: add MUX_GATE_FLAGS_2 
Add MUX_GATE_FLAGS_2 for the clock which needs to set two falgs.
Such as some mux need to set the flags of "CLK_MUX_ROUND_CLOSEST".

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: wangyan wang <wangyan.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-25 09:19:32 -08:00
Fabrizio Castro
df446f7e6e clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK 
Enum LAST_DT_CORE_CLK needs updating as R8A774A1_CLK_CANFD
was recently added and it's the core clock with the highest
index.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Fixes: 9d034e151b ("clk: renesas: r8a774a1: Add missing CANFD clock")
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-25 09:13:19 -08:00
Linus Torvalds
5908e6b738 Linux 5.0-rc8 2019-02-24 16:46:45 -08:00
Linus Torvalds
c3619a482e Bug fixes. 
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Bug fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: MMU: record maximum physical address width in kvm_mmu_extended_role
  kvm: x86: Return LA57 feature based on hardware capability
  x86/kvm/mmu: fix switch between root and guest MMUs
  s390: vsie: Use effective CRYCBD.31 to check CRYCBD validity
 2019-02-24 09:47:07 -08:00
Linus Torvalds
c4eb1e1852 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Pull networking fixes from David Miller:
 "Hopefully the last pull request for this release. Fingers crossed:

   1) Only refcount ESP stats on full sockets, from Martin Willi.

   2) Missing barriers in AF_UNIX, from Al Viro.

   3) RCU protection fixes in ipv6 route code, from Paolo Abeni.

   4) Avoid false positives in untrusted GSO validation, from Willem de
      Bruijn.

   5) Forwarded mesh packets in mac80211 need more tailroom allocated,
      from Felix Fietkau.

   6) Use operstate consistently for linkup in team driver, from George
      Wilkie.

   7) ThunderX bug fixes from Vadim Lomovtsev. Mostly races between VF
      and PF code paths.

   8) Purge ipv6 exceptions during netdevice removal, from Paolo Abeni.

   9) nfp eBPF code gen fixes from Jiong Wang.

  10) bnxt_en firmware timeout fix from Michael Chan.

  11) Use after free in udp/udpv6 error handlers, from Paolo Abeni.

  12) Fix a race in x25_bind triggerable by syzbot, from Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
  net: phy: realtek: Dummy IRQ calls for RTL8366RB
  tcp: repaired skbs must init their tso_segs
  net/x25: fix a race in x25_bind()
  net: dsa: Remove documentation for port_fdb_prepare
  Revert "bridge: do not add port to router list when receives query with source 0.0.0.0"
  selftests: fib_tests: sleep after changing carrier. again.
  net: set static variable an initial value in atl2_probe()
  net: phy: marvell10g: Fix Multi-G advertisement to only advertise 10G
  bpf, doc: add bpf list as secondary entry to maintainers file
  udp: fix possible user after free in error handler
  udpv6: fix possible user after free in error handler
  fou6: fix proto error handler argument type
  udpv6: add the required annotation to mib type
  mdio_bus: Fix use-after-free on device_register fails
  net: Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255
  bnxt_en: Wait longer for the firmware message response to complete.
  bnxt_en: Fix typo in firmware message timeout logic.
  nfp: bpf: fix ALU32 high bits clearance bug
  nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
  Documentation: networking: switchdev: Update port parent ID section
  ...
 2019-02-24 09:28:26 -08:00
Linus Walleij
4c8e0459b5 net: phy: realtek: Dummy IRQ calls for RTL8366RB 
This fixes a regression introduced by
commit 0d2e778e38
"net: phy: replace PHY_HAS_INTERRUPT with a check for
config_intr and ack_interrupt".

This assumes that a PHY cannot trigger interrupt unless
it has .config_intr() or .ack_interrupt() implemented.
A later patch makes the code assume both need to be
implemented for interrupts to be present.

But this PHY (which is inside a DSA) will happily
fire interrupts without either callback.

Implement dummy callbacks for .config_intr() and
.ack_interrupt() in the phy header to fix this.

Tested on the RTL8366RB on D-Link DIR-685.

Fixes: 0d2e778e38 ("net: phy: replace PHY_HAS_INTERRUPT with a check for config_intr and ack_interrupt")
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:45:28 -08:00
Eric Dumazet
bf50b606cf tcp: repaired skbs must init their tso_segs 
syzbot reported a WARN_ON(!tcp_skb_pcount(skb))
in tcp_send_loss_probe() [1]

This was caused by TCP_REPAIR sent skbs that inadvertenly
were missing a call to tcp_init_tso_segs()

[1]
WARNING: CPU: 1 PID: 0 at net/ipv4/tcp_output.c:2534 tcp_send_loss_probe+0x771/0x8a0 net/ipv4/tcp_output.c:2534
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.0.0-rc7+ #77
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:tcp_send_loss_probe+0x771/0x8a0 net/ipv4/tcp_output.c:2534
Code: 88 fc ff ff 4c 89 ef e8 ed 75 c8 fb e9 c8 fc ff ff e8 43 76 c8 fb e9 63 fd ff ff e8 d9 75 c8 fb e9 94 f9 ff ff e8 bf 03 91 fb <0f> 0b e9 7d fa ff ff e8 b3 03 91 fb 0f b6 1d 37 43 7a 03 31 ff 89
RSP: 0018:ffff8880ae907c60 EFLAGS: 00010206
RAX: ffff8880a989c340 RBX: 0000000000000000 RCX: ffffffff85dedbdb
RDX: 0000000000000100 RSI: ffffffff85dee0b1 RDI: 0000000000000005
RBP: ffff8880ae907c90 R08: ffff8880a989c340 R09: ffffed10147d1ae1
R10: ffffed10147d1ae0 R11: ffff8880a3e8d703 R12: ffff888091b90040
R13: ffff8880a3e8d540 R14: 0000000000008000 R15: ffff888091b90860
 tcp_write_timer_handler+0x5c0/0x8a0 net/ipv4/tcp_timer.c:583
 tcp_write_timer+0x10e/0x1d0 net/ipv4/tcp_timer.c:607
 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694
 __do_softirq+0x266/0x95a kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:58
Code: ff ff ff 48 89 c7 48 89 45 d8 e8 59 0c a1 fa 48 8b 45 d8 e9 ce fe ff ff 48 89 df e8 48 0c a1 fa eb 82 90 90 90 90 90 90 fb f4 <c3> 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90
RSP: 0018:ffff8880a98afd78 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1125061 RBX: ffff8880a989c340 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a989cbbc
RBP: ffff8880a98afda8 R08: ffff8880a989c340 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff889282f8 R14: 0000000000000001 R15: 0000000000000000
 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:555
 default_idle_call+0x36/0x90 kernel/sched/idle.c:93
 cpuidle_idle_call kernel/sched/idle.c:153 [inline]
 do_idle+0x386/0x570 kernel/sched/idle.c:262
 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:353
 start_secondary+0x404/0x5c0 arch/x86/kernel/smpboot.c:271
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Kernel Offset: disabled
Rebooting in 86400 seconds..

Fixes: 79861919b8 ("tcp: fix TCP_REPAIR xmit queue setup")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:43:25 -08:00
Eric Dumazet
797a22bd52 net/x25: fix a race in x25_bind() 
syzbot was able to trigger another soft lockup [1]

I first thought it was the O(N^2) issue I mentioned in my
prior fix (f657d22ee1f "net/x25: do not hold the cpu
too long in x25_new_lci()"), but I eventually found
that x25_bind() was not checking SOCK_ZAPPED state under
socket lock protection.

This means that multiple threads can end up calling
x25_insert_socket() for the same socket, and corrupt x25_list

[1]
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.2:10492]
Modules linked in:
irq event stamp: 27515
hardirqs last  enabled at (27514): [<ffffffff81006673>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (27515): [<ffffffff8100668f>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last  enabled at (32): [<ffffffff8632ee73>] x25_get_neigh+0xa3/0xd0 net/x25/x25_link.c:336
softirqs last disabled at (34): [<ffffffff86324bc3>] x25_find_socket+0x23/0x140 net/x25/af_x25.c:341
CPU: 0 PID: 10492 Comm: syz-executor.2 Not tainted 5.0.0-rc7+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:97
Code: f4 ff ff ff e8 11 9f ea ff 48 c7 05 12 fb e5 08 00 00 00 00 e9 c8 e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 <48> 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 38 0c 92 7e 81 e2
RSP: 0018:ffff88806e94fc48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1100d84dac5 RBX: 0000000000000001 RCX: ffffc90006197000
RDX: 0000000000040000 RSI: ffffffff86324bf3 RDI: ffff88806c26d628
RBP: ffff88806e94fc48 R08: ffff88806c1c6500 R09: fffffbfff1282561
R10: fffffbfff1282560 R11: ffffffff89412b03 R12: ffff88806c26d628
R13: ffff888090455200 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f3a107e4700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a107e3db8 CR3: 00000000a5544000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __x25_find_socket net/x25/af_x25.c:327 [inline]
 x25_find_socket+0x7d/0x140 net/x25/af_x25.c:342
 x25_new_lci net/x25/af_x25.c:355 [inline]
 x25_connect+0x380/0xde0 net/x25/af_x25.c:784
 __sys_connect+0x266/0x330 net/socket.c:1662
 __do_sys_connect net/socket.c:1673 [inline]
 __se_sys_connect net/socket.c:1670 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1670
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3a107e3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29
RDX: 0000000000000012 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3a107e46d4
R13: 00000000004be362 R14: 00000000004ceb98 R15: 00000000ffffffff
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10493 Comm: syz-executor.3 Not tainted 5.0.0-rc7+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:queued_write_lock_slowpath+0x143/0x290 kernel/locking/qrwlock.c:86
Code: 4c 8d 2c 01 41 83 c7 03 41 0f b6 45 00 41 38 c7 7c 08 84 c0 0f 85 0c 01 00 00 8b 03 3d 00 01 00 00 74 1a f3 90 41 0f b6 55 00 <41> 38 d7 7c eb 84 d2 74 e7 48 89 df e8 cc aa 4e 00 eb dd be 04 00
RSP: 0018:ffff888085c47bd8 EFLAGS: 00000206
RAX: 0000000000000300 RBX: ffffffff89412b00 RCX: 1ffffffff1282560
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff89412b00
RBP: ffff888085c47c70 R08: 1ffffffff1282560 R09: fffffbfff1282561
R10: fffffbfff1282560 R11: ffffffff89412b03 R12: 00000000000000ff
R13: fffffbfff1282560 R14: 1ffff11010b88f7d R15: 0000000000000003
FS:  00007fdd04086700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdd04064db8 CR3: 0000000090be0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 queued_write_lock include/asm-generic/qrwlock.h:104 [inline]
 do_raw_write_lock+0x1d6/0x290 kernel/locking/spinlock_debug.c:203
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x3b/0x50 kernel/locking/spinlock.c:312
 x25_insert_socket+0x21/0xe0 net/x25/af_x25.c:267
 x25_bind+0x273/0x340 net/x25/af_x25.c:703
 __sys_bind+0x23f/0x290 net/socket.c:1481
 __do_sys_bind net/socket.c:1492 [inline]
 __se_sys_bind net/socket.c:1490 [inline]
 __x64_sys_bind+0x73/0xb0 net/socket.c:1490
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29

Fixes: 90c27297a9 ("X.25 remove bkl in bind")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: andrew hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:41:06 -08:00
Hauke Mehrtens
99407d8fa3 net: dsa: Remove documentation for port_fdb_prepare 
This callback was removed some time ago, also remove the documentation.

Fixes: 1b6dd556c3 ("net: dsa: Remove prepare phase for FDB")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:38:00 -08:00
Hangbin Liu
278e2148c0 Revert "bridge: do not add port to router list when receives query with source 0.0.0.0" 
This reverts commit 5a2de63fd1 ("bridge: do not add port to router list
when receives query with source 0.0.0.0") and commit 0fe5119e26 ("net:
bridge: remove ipv6 zero address check in mcast queries")

The reason is RFC 4541 is not a standard but suggestive. Currently we
will elect 0.0.0.0 as Querier if there is no ip address configured on
bridge. If we do not add the port which recives query with source
0.0.0.0 to router list, the IGMP reports will not be about to forward
to Querier, IGMP data will also not be able to forward to dest.

As Nikolay suggested, revert this change first and add a boolopt api
to disable none-zero election in future if needed.

Reported-by: Linus Lüssing <linus.luessing@c0d3.blue>
Reported-by: Sebastian Gottschall <s.gottschall@newmedia-net.de>
Fixes: 5a2de63fd1 ("bridge: do not add port to router list when receives query with source 0.0.0.0")
Fixes: 0fe5119e26 ("net: bridge: remove ipv6 zero address check in mcast queries")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:36:06 -08:00
Thadeu Lima de Souza Cascardo
af548a27b1 selftests: fib_tests: sleep after changing carrier. again. 
Just like commit e2ba732a16 ("selftests: fib_tests: sleep after
changing carrier"), wait one second to allow linkwatch to propagate the
carrier change to the stack.

There are two sets of carrier tests. The first slept after the carrier
was set to off, and when the second set ran, it was likely that the
linkwatch would be able to run again without much delay, reducing the
likelihood of a race. However, if you run 'fib_tests.sh -t carrier' on a
loop, you will quickly notice the failures.

Sleeping on the second set of tests make the failures go away.

Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:34:20 -08:00
Mao Wenan
4593403fa5 net: set static variable an initial value in atl2_probe() 
cards_found is a static variable, but when it enters atl2_probe(),
cards_found is set to zero, the value is not consistent with last probe,
so next behavior is not our expect.

Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 13:47:13 -08:00
Maxime Chevallier
61a65d32fe net: phy: marvell10g: Fix Multi-G advertisement to only advertise 10G 
Some Marvell Alaska PHYs support 2.5G, 5G and 10G BaseT links. Their
default behaviour is to advertise all of these modes, but at the moment,
only 10GBaseT is supported. To prevent link partners from establishing
link at that speed, clear these modes upon configuring aneg parameters.

Fixes: 20b2af32ff ("net: phy: add Marvell Alaska X 88X3310 10Gigabit PHY support")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reported-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 13:27:51 -08:00
Linus Torvalds
e60b5f79bd powerpc fixes for 5.0 #6 
One fix for an oops when using SRIOV, introduced by the recent changes to
 support compound IOMMU groups.
 
 Thanks to:
   Alexey Kardashevskiy.
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Merge tag 'powerpc-5.0-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "One fix for an oops when using SRIOV, introduced by the recent changes
  to support compound IOMMU groups.

  Thanks to Alexey Kardashevskiy"

* tag 'powerpc-5.0-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv/sriov: Register IOMMU groups for VFs
 2019-02-23 11:13:50 -08:00
Linus Torvalds
6089a91fc0 SCSI fixes on 20190222 
Four small fixes: three in drivers and one in the core.  The core fix
 is also minor in scope since the bug it fixes is only known to affect
 systems using SCSI reservations.  Of the driver bugs, the libsas one
 is the most major because it can lead to multiple disks on the same
 expander not being exposed.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four small fixes: three in drivers and one in the core.

  The core fix is also minor in scope since the bug it fixes is only
  known to affect systems using SCSI reservations. Of the driver bugs,
  the libsas one is the most major because it can lead to multiple disks
  on the same expander not being exposed"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: core: reset host byte in DID_NEXUS_FAILURE case
  scsi: libsas: Fix rphy phy_identifier for PHYs with end devices attached
  scsi: sd_zbc: Fix sd_zbc_report_zones() buffer allocation
  scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
 2019-02-23 09:48:01 -08:00
David S. Miller
ea34a00364 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 
Daniel Borkmann says:

====================
pull-request: bpf 2019-02-23

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix a bug in BPF's LPM deletion logic to match correct prefix
   length, from Alban.

2) Fix AF_XDP teardown by not destroying umem prematurely as it
   is still needed till all outstanding skbs are freed, from Björn.

3) Fix unkillable BPF_PROG_TEST_RUN under preempt kernel by checking
   signal_pending() outside need_resched() condition which is never
   triggered there, from Stanislav.

4) Fix two nfp JIT bugs, one in code emission for K-based xor, and
   another one to explicitly clear upper bits in alu32, from Jiong.

5) Add bpf list address to maintainers file, from Daniel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 20:45:38 -08:00
Linus Torvalds
cb268d8069 Merge branch 'fixes-v5.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull keys fixes from James Morris:
 "Two fixes from Eric Biggers"

* 'fixes-v5.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  KEYS: always initialize keyring_index_key::desc_len
  KEYS: user: Align the payload buffer
 2019-02-22 17:48:50 -08:00
Linus Torvalds
ef4edb3ed8 Power management fixes for final 5.0 
- Use hrtimer_try_to_cancel() instead of hrtimer_cancel() in the
    PM-runtime framework to avoid a possible timer-related deadlock
    introduced recently (Vincent Guittot).
 
  - Reorder the scmi-cpufreq driver code to avoid accessing memory
    that has just been freed (Yangtao Li).
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Merge tag 'pm-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a regression in the PM-runtime framework introduced by the
  recent switch-over of it to using hrtimers and a use-after-free
  introduced by one of the recent changes in the scmi-cpufreq driver.

  Specifics:

   - Use hrtimer_try_to_cancel() instead of hrtimer_cancel() in the
     PM-runtime framework to avoid a possible timer-related deadlock
     introduced recently (Vincent Guittot).

   - Reorder the scmi-cpufreq driver code to avoid accessing memory that
     has just been freed (Yangtao Li)"

* tag 'pm-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM-runtime: Fix deadlock when canceling hrtimer
  cpufreq: scmi: Fix use-after-free in scmi_cpufreq_exit()
 2019-02-22 17:46:30 -08:00
Linus Torvalds
9053d2db8b ARM: SoC fixes for 5.0 
Only a handful of device tree fixes, all simple enough:
 
 NVIDIA Tegra:
  - Fix a regression for booting on chromebooks
 
 TI OMAP:
  - Two fixes PHY mode on am335x reference boards
 
 Marvell mvebu:
  - A regression fix for Armada XP NAND flash controllers
  - An incorrect reset signal on the clearfog board
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Only a handful of device tree fixes, all simple enough:

  NVIDIA Tegra:
   - Fix a regression for booting on chromebooks

  TI OMAP:
   - Two fixes PHY mode on am335x reference boards

  Marvell mvebu:
   - A regression fix for Armada XP NAND flash controllers
   - An incorrect reset signal on the clearfog board"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: tegra: Restore DT ABI on Tegra124 Chromebooks
  ARM: dts: am335x-evm: Fix PHY mode for ethernet
  ARM: dts: am335x-evmsk: Fix PHY mode for ethernet
  arm64: dts: clearfog-gt-8k: fix SGMII PHY reset signal
  ARM: dts: armada-xp: fix Armada XP boards NAND description
 2019-02-22 16:48:37 -08:00
Linus Torvalds
2cc63b3900 ARC fixes for 5.0 final 
- Fix memcpy to prevent prefetchw beyond end of buffer [Eugeniy]
 
  - Enable unaligned access early to prevent exceptions given newer gcc
    code gen [Eugeniy]
 
  - Tighten up uboot arg checking to prevent false negatives and also
    allow both jtag and bootloading to coexist w/o config option as
    needed by kernelCi folks [Eugeniy]
 
  - Set slab alignment to 8 for ARC to avoid the atomic64_t unalign [Alexey]
 
  - Disable regfile auto save on interrupts on HSDK platform due to a
    silicon issue  [Vineet]
 
  - Avoid HS38x boot printing crash by not reading HS48x only reg [Vineet]
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Merge tag 'arc-5.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "Fixes for ARC for 5.0, bunch of those are stable fodder anyways so
  sooner the better.

   - Fix memcpy to prevent prefetchw beyond end of buffer [Eugeniy]

   - Enable unaligned access early to prevent exceptions given newer gcc
     code gen [Eugeniy]

   - Tighten up uboot arg checking to prevent false negatives and also
     allow both jtag and bootloading to coexist w/o config option as
     needed by kernelCi folks [Eugeniy]

   - Set slab alignment to 8 for ARC to avoid the atomic64_t unalign
     [Alexey]

   - Disable regfile auto save on interrupts on HSDK platform due to a
     silicon issue [Vineet]

   - Avoid HS38x boot printing crash by not reading HS48x only reg
     [Vineet]"

* tag 'arc-5.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: don't assume core 0x54 has dual issue
  ARC: define ARCH_SLAB_MINALIGN = 8
  ARC: enable uboot support unconditionally
  ARC: U-boot: check arguments paranoidly
  ARCv2: support manual regfile save on interrupts
  ARC: uacces: remove lp_start, lp_end from clobber list
  ARC: fix actionpoints configuration detection
  ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
  ARCv2: Enable unaligned access in early ASM code
 2019-02-22 16:31:26 -08:00
Daniel Borkmann
b4b8bb69c1 bpf, doc: add bpf list as secondary entry to maintainers file 
We recently created a bpf@vger.kernel.org list (https://lore.kernel.org/bpf/)
for BPF related discussions, originally in context of BPF track at LSF/MM
for topic discussions. It's *optional* but *desirable* to keep it in Cc for
BPF related kernel/loader/llvm/tooling threads, meaning also infrastructure
like llvm that sits on top of kernel but is crucial to BPF. In any case,
netdev with it's bpf delegate is *as-is* today primary list for patches, so
nothing changes in the workflow. Main purpose is to have some more awareness
for the bpf@vger.kernel.org list that folks can Cc for BPF specific topics.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-02-23 01:22:32 +01:00
Linus Torvalds
8456e98e18 Merge branch 'parisc-5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 
Pull parisc fixes from Helge Deller:
 "Fix ptrace syscall number modification which has been broken since
  kernel v4.5 and provide alternative email addresses for the remaining
  users of the retired parisc-linux.org email domain"

* 'parisc-5.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  CREDITS/MAINTAINERS: Retire parisc-linux.org email domain
  parisc: Fix ptrace syscall number modification
 2019-02-22 16:12:01 -08:00
Linus Torvalds
77dc1181d8 Kbuild fixes for v5.0 (2nd) 
- fix scripts/kallsyms.c to correctly check too long symbol names
 
  - fix sh build error for the combination of CONFIG_OF_EARLY_FLATTREE=y
    and CONFIG_USE_BUILTIN_DTB=n
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Merge tag 'kbuild-fixes-v5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild fixes from Masahiro Yamada:

 - fix scripts/kallsyms.c to correctly check too long symbol names

 - fix sh build error for the combination of CONFIG_OF_EARLY_FLATTREE=y
   and CONFIG_USE_BUILTIN_DTB=n

* tag 'kbuild-fixes-v5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  sh: fix build error for invisible CONFIG_BUILTIN_DTB_SOURCE
  kallsyms: Handle too long symbols in kallsyms.c
 2019-02-22 16:09:55 -08:00
David S. Miller
40e8f0b42f Merge branch 'udp-a-few-fixes' 
Paolo Abeni says:

====================
udp: a few fixes

This series includes some UDP-related fixlet. All this stuff has been
pointed out by the sparse tool. The first two patches are just annotation
related, while the last 2 cover some very unlikely races.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 16:05:12 -08:00
Paolo Abeni
92b9536423 udp: fix possible user after free in error handler 
Similar to the previous commit, this addresses the same issue for
ipv4: use a single fetch operation and use the correct rcu
annotation.

Fixes: e7cc082455 ("udp: Support for error handlers of tunnels with arbitrary destination port")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 16:05:11 -08:00
Paolo Abeni
424a7cd078 udpv6: fix possible user after free in error handler 
Before derefencing the encap pointer, commit e7cc082455 ("udp: Support
for error handlers of tunnels with arbitrary destination port") checks
for a NULL value, but the two fetch operation can race with removal.
Fix the above using a single access.
Also fix a couple of type annotations, to make sparse happy.

Fixes: e7cc082455 ("udp: Support for error handlers of tunnels with arbitrary destination port")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 16:05:11 -08:00
Paolo Abeni
5de362df44 fou6: fix proto error handler argument type 
Last argument of gue6_err_proto_handler() has a wrong type annotation,
fix it and make sparse happy again.

Fixes: b8a51b38e4 ("fou, fou6: ICMP error handlers for FoU and GUE")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 16:05:11 -08:00
Paolo Abeni
543fc3fb41 udpv6: add the required annotation to mib type 
In commit 029a374348 ("udp6: cleanup stats accounting in recvmsg()")
I forgot to add the percpu annotation for the mib pointer. Add it, and
make sparse happy.

Fixes: 029a374348 ("udp6: cleanup stats accounting in recvmsg()")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 16:05:11 -08:00
YueHaibing
6ff7b06053 mdio_bus: Fix use-after-free on device_register fails 
KASAN has found use-after-free in fixed_mdio_bus_init,
commit 0c692d0784 ("drivers/net/phy/mdio_bus.c: call
put_device on device_register() failure") call put_device()
while device_register() fails,give up the last reference
to the device and allow mdiobus_release to be executed
,kfreeing the bus. However in most drives, mdiobus_free
be called to free the bus while mdiobus_register fails.
use-after-free occurs when access bus again, this patch
revert it to let mdiobus_free free the bus.

KASAN report details as below:

BUG: KASAN: use-after-free in mdiobus_free+0x85/0x90 drivers/net/phy/mdio_bus.c:482
Read of size 4 at addr ffff8881dc824d78 by task syz-executor.0/3524

CPU: 1 PID: 3524 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #45
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xfa/0x1ce lib/dump_stack.c:113
 print_address_description+0x65/0x270 mm/kasan/report.c:187
 kasan_report+0x149/0x18d mm/kasan/report.c:317
 mdiobus_free+0x85/0x90 drivers/net/phy/mdio_bus.c:482
 fixed_mdio_bus_init+0x283/0x1000 [fixed_phy]
 ? 0xffffffffc0e40000
 ? 0xffffffffc0e40000
 ? 0xffffffffc0e40000
 do_one_initcall+0xfa/0x5ca init/main.c:887
 do_init_module+0x204/0x5f6 kernel/module.c:3460
 load_module+0x66b2/0x8570 kernel/module.c:3808
 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902
 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x462e99
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6215c19c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f6215c19c70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6215c1a6bc
R13: 00000000004bcefb R14: 00000000006f7030 R15: 0000000000000004

Allocated by task 3524:
 set_track mm/kasan/common.c:85 [inline]
 __kasan_kmalloc.constprop.3+0xa0/0xd0 mm/kasan/common.c:496
 kmalloc include/linux/slab.h:545 [inline]
 kzalloc include/linux/slab.h:740 [inline]
 mdiobus_alloc_size+0x54/0x1b0 drivers/net/phy/mdio_bus.c:143
 fixed_mdio_bus_init+0x163/0x1000 [fixed_phy]
 do_one_initcall+0xfa/0x5ca init/main.c:887
 do_init_module+0x204/0x5f6 kernel/module.c:3460
 load_module+0x66b2/0x8570 kernel/module.c:3808
 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902
 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 3524:
 set_track mm/kasan/common.c:85 [inline]
 __kasan_slab_free+0x130/0x180 mm/kasan/common.c:458
 slab_free_hook mm/slub.c:1409 [inline]
 slab_free_freelist_hook mm/slub.c:1436 [inline]
 slab_free mm/slub.c:2986 [inline]
 kfree+0xe1/0x270 mm/slub.c:3938
 device_release+0x78/0x200 drivers/base/core.c:919
 kobject_cleanup lib/kobject.c:662 [inline]
 kobject_release lib/kobject.c:691 [inline]
 kref_put include/linux/kref.h:67 [inline]
 kobject_put+0x146/0x240 lib/kobject.c:708
 put_device+0x1c/0x30 drivers/base/core.c:2060
 __mdiobus_register+0x483/0x560 drivers/net/phy/mdio_bus.c:382
 fixed_mdio_bus_init+0x26b/0x1000 [fixed_phy]
 do_one_initcall+0xfa/0x5ca init/main.c:887
 do_init_module+0x204/0x5f6 kernel/module.c:3460
 load_module+0x66b2/0x8570 kernel/module.c:3808
 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902
 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8881dc824c80
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 248 bytes inside of
 2048-byte region [ffff8881dc824c80, ffff8881dc825480)
The buggy address belongs to the page:
page:ffffea0007720800 count:1 mapcount:0 mapping:ffff8881f6c02800 index:0x0 compound_mapcount: 0
flags: 0x2fffc0000010200(slab|head)
raw: 02fffc0000010200 0000000000000000 0000000500000001 ffff8881f6c02800
raw: 0000000000000000 00000000800f000f 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881dc824c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881dc824c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881dc824d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff8881dc824d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881dc824e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fixes: 0c692d0784 ("drivers/net/phy/mdio_bus.c: call put_device on device_register() failure")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 15:34:07 -08:00
Kalash Nainwal
97f0082a05 net: Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255 
Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255 to
keep legacy software happy. This is similar to what was done for
ipv4 in commit 709772e6e0 ("net: Fix routing tables with
id > 255 for legacy software").

Signed-off-by: Kalash Nainwal <kalash@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 15:21:27 -08:00
David S. Miller
a11f5756a3 Merge branch 'bnxt_en-firmware-message-delay-fixes' 
Michael Chan says:

====================
bnxt_en: firmware message delay fixes.

We were seeing some intermittent firmware message timeouts in our lab and
these 2 small patches fix them.  Please apply to stable as well.  Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 15:16:56 -08:00
Michael Chan
0000b81a06 bnxt_en: Wait longer for the firmware message response to complete. 
The code waits up to 20 usec for the firmware response to complete
once we've seen the valid response header in the buffer.  It turns
out that in some scenarios, this wait time is not long enough.
Extend it to 150 usec and use usleep_range() instead of udelay().

Fixes: 9751e8e714 ("bnxt_en: reduce timeout on initial HWRM calls")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-22 15:16:56 -08:00