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982,081 commits

Author SHA1 Message Date
Paul Blakey
ff189b4356 net/mlx5: Add ignore level support fwd to table rules
If user sets ignore flow level flag on a rule, that rule can point to
a flow table of any level, including those with levels equal or less
than the level of the flow table it is added on.

This with unamanged tables will be used to create a FDB chain/prio
hierarchy much larger than currently supported level range.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 15:48:58 -08:00
Paul Blakey
5281a0c909 net/mlx5: fs_core: Introduce unmanaged flow tables
Currently, Most of the steering tree is statically declared ahead of time,
with steering prios instances allocated for each fdb chain to assign max
number of levels for each of them. This allows fs_core to manage the
connections and  levels of the flow tables hierarcy to prevent loops, but
restricts us with the number of supported chains and priorities.

Introduce unmananged flow tables, allowing the user to manage the flow
table connections. A unamanged table is detached from the fs_core flow
table hierarcy, and is only connected back to the hierarchy by explicit
FTEs forward actions.

This will be used together with firmware that supports ignoring the flow
table levels to increase the number of supported chains and prios.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 15:48:58 -08:00
Saeed Mahameed
12e9e0d0d9 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
This merge syncs with mlx5-next latest HW bits and layout updates for next
features, in addition one patch that improves
mlx5_create_auto_grouped_flow_table() API across all mlx5 users.

* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Refactor mlx5_create_auto_grouped_flow_table
  net/mlx5e: Add discard counters per priority
  net/mlx5e: Expose FEC feilds and related capability bit
  net/mlx5: Add mlx5_ifc definitions for connection tracking support
  net/mlx5: Add copy header action struct layout
  net/mlx5: Expose resource dump register mapping
  net/mlx5: Add structures and defines for MIRC register
  net/mlx5: Read MCAM register groups 1 and 2
  net/mlx5: Add structures layout for new MCAM access reg groups
  net/mlx5: Expose vDPA emulation device capabilities
  net/mlx5: Add Virtio Emulation related device capabilities

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 15:48:24 -08:00
Manivannan Sadhasivam
dee0be5c21 arm64: dts: bitmain: Source common clock for UART controllers
Remove fixed clock and source common clock for UART controllers.

Link: https://lore.kernel.org/r/20200114040311.6599-3-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:48:11 -08:00
Manivannan Sadhasivam
e1cd7b8046 arm64: dts: bitmain: Add clock controller support for BM1880 SoC
Add clock controller support for Bitmain BM1880 SoC.

Link: https://lore.kernel.org/r/20200114040311.6599-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:48:02 -08:00
Olof Johansson
a0be47376f ARM: dts: Amlogic updates for v5.6
- add DDR clock controller
 - GPU OPP updates
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Merge tag 'amlogic-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt

ARM: dts: Amlogic updates for v5.6
- add DDR clock controller
- GPU OPP updates

* tag 'amlogic-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  ARM: dts: meson8b: use the actual frequency for the GPU's 364MHz OPP
  ARM: dts: meson8: use the actual frequency for the GPU's 182.1MHz OPP
  ARM: dts: meson8b: fix the clock controller compatible string
  ARM: dts: meson8b: add the DDR clock controller
  ARM: dts: meson8: add the DDR clock controller
  ARM: dts: meson: provide the XTAL clock using a fixed-clock
  dt-bindings: clock: meson8b: add the clock inputs
  dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding

Link: https://lore.kernel.org/r/7hwo9udi7m.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:47:10 -08:00
Olof Johansson
5a74e85ae4 arm64: dts: Amlogic updates for v5.6
- new boards: libretech-pc (S912 and S905D versions)
 - new board: Videostrong KII Pro
 - A1: add reset controller
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Merge tag 'amlogic-dt64' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt

arm64: dts: Amlogic updates for v5.6
- new boards: libretech-pc (S912 and S905D versions)
- new board: Videostrong KII Pro
- A1: add reset controller

* tag 'amlogic-dt64' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  arm64: dts: meson: add audio fifo depths
  arm64: dts: meson: add libretech-pc boards support
  dt-bindings: arm: amlogic: add libretech-pc bindings
  arm64: dts: meson: gxl: add i2c C pins
  arm64: dts: meson-sm1: add video decoder compatible
  arm64: dts: meson-g12-common: add video decoder node
  arm64: dts: meson-gxbb: add support for Videostrong KII Pro
  dt-bindings: arm: amlogic: add Videostrong KII Pro bindings
  dt-bindings: Add vendor prefix for Videostrong
  arm64: dts: meson: a1: add pinctrl controller support
  arm64: dts: meson: add reset controller for Meson-A1 SoC

Link: https://lore.kernel.org/r/7hsgkidi3k.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:46:40 -08:00
Olof Johansson
116a4b85f6 Qualcomm ARM dts updates for v5.6
* Add SAW L2 nodes to boot secondary cpus on IPQ40xx
 * Fix remaining IRQ_TYPE_NONE on APQ8084
 * Update tsens node to new style
 * Add modem remoteproc node to MSM8974
 * Move ADSP SMD edge into ADSP remoteproc node for MSM8974
 * Add and enable wireless communication subsystem on MSM8974 and Fairphone 2
 * Add MSM8974 interconnect provider nodes
 * Add MSM8974 OCMEM node
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Merge tag 'qcom-dts-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt

Qualcomm ARM dts updates for v5.6

* Add SAW L2 nodes to boot secondary cpus on IPQ40xx
* Fix remaining IRQ_TYPE_NONE on APQ8084
* Update tsens node to new style
* Add modem remoteproc node to MSM8974
* Move ADSP SMD edge into ADSP remoteproc node for MSM8974
* Add and enable wireless communication subsystem on MSM8974 and Fairphone 2
* Add MSM8974 interconnect provider nodes
* Add MSM8974 OCMEM node

* tag 'qcom-dts-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  ARM: dts: qcom: Add nodes for SMP boot in IPQ40xx
  ARM: dts: qcom: apq8084: Remove all instances of IRQ_TYPE_NONE
  ARM: dts: qcom: apq8084: Change tsens definition to new style
  ARM: dts: msm8974: Move ADSP smd edge to ADSP PIL
  ARM: dts: msm8974: Add modem remoteproc node
  ARM: dts: msm8974-FP2: Introduce the wcnss remoteproc node
  ARM: dts: msm8974: Introduce the wcnss remoteproc node
  ARM: dts: qcom: msm8974: add interconnect nodes
  ARM: dts: qcom: msm8974: add ocmem node

Link: https://lore.kernel.org/r/20200113204448.GE3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:46:06 -08:00
Olof Johansson
333505a406 Qualcomm driver updates for v5.6
* SCM major refactoring and cleanup
 * Properly flag active only power domains as active only
 * Add SC7180 and SM8150 RPMH power domains
 * Return EPROBE_DEFER from QMI if packet family is not yet available
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Merge tag 'qcom-drivers-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm driver updates for v5.6

* SCM major refactoring and cleanup
* Properly flag active only power domains as active only
* Add SC7180 and SM8150 RPMH power domains
* Return EPROBE_DEFER from QMI if packet family is not yet available

* tag 'qcom-drivers-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (27 commits)
  firmware: qcom_scm: Dynamically support SMCCC and legacy conventions
  firmware: qcom_scm: Remove thin wrappers
  firmware: qcom_scm: Order functions, definitions by service/command
  firmware: qcom_scm-32: Add device argument to atomic calls
  firmware: qcom_scm-32: Create common legacy atomic call
  firmware: qcom_scm-32: Move SMCCC register filling to qcom_scm_call
  firmware: qcom_scm-32: Use qcom_scm_desc in non-atomic calls
  firmware: qcom_scm-32: Add funcnum IDs
  firmware: qcom_scm-32: Use SMC arch wrappers
  firmware: qcom_scm-64: Improve SMC convention detection
  firmware: qcom_scm-64: Move SMC register filling to qcom_scm_call_smccc
  firmware: qcom_scm-64: Add SCM results struct
  firmware: qcom_scm-64: Move svc/cmd/owner into qcom_scm_desc
  firmware: qcom_scm-64: Make SMC macros less magical
  firmware: qcom_scm: Remove unused qcom_scm_get_version
  firmware: qcom_scm: Apply consistent naming scheme to command IDs
  firmware: qcom_scm: Rename macros and structures
  soc: qcom: rpmhpd: Set 'active_only' for active only power domains
  firmware: scm: Add stubs for OCMEM and restore_sec_cfg_available
  dt-bindings: power: rpmpd: Convert rpmpd bindings to yaml
  ...

Link: https://lore.kernel.org/r/20200113204405.GD3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:45:36 -08:00
Olof Johansson
40d4d62708 Qualcomm ARM defconfig updates for v5.6
* Enable anx78xx HDMI bridge driver
 * Enable MSM8974 interconnect provider driver
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Merge tag 'qcom-defconfig-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/defconfig

Qualcomm ARM defconfig updates for v5.6

* Enable anx78xx HDMI bridge driver
* Enable MSM8974 interconnect provider driver

* tag 'qcom-defconfig-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  ARM: qcom_defconfig: add anx78xx HDMI bridge support
  ARM: qcom_defconfig: add msm8974 interconnect support

Link: https://lore.kernel.org/r/20200113204313.GC3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:45:07 -08:00
Olof Johansson
2e04d1bd54 Qualcomm ARM64 DT updates for v5.6
* Align SDM845 firmware paths with linux-firmware
 * Make WiFi work on Dragonboard845c
 * Wire up wakeup controller for SDM845
 * Critical thermal interrupt support for SDM845, MSM8996 and MSM8998
 * Enable UFS for SM8150
 * Add remoteproc enablers and nodes for SM8150
 * Add CPUfreq for SM8150
 * Add RPMH power-domain node for SM8150
 * Cleanup and refactor MSM8996 dts structure
 * Add initial Inforce Computing IFC6640 dts
 * Increase MSM8996 core voltage
 * Fix MSM8996 USB phy settings
 * Add missing alias for BLSP UART in MSM8998 MTP
 * Add remoteproc nodes for ADSP, modem and sensor core for MSM8998
 * Enable WiFI for MSM8998
 * Introduce the SC7180 platform and the IDP development board
 * Add CPUfreq, QUPs, USB, remoteproc etc for SC7180
 * Enable USB OTG for Dragonboard 410c
 * Add vibrator motor node for PM8916
 * Properly specify APCS clocks for MSM8916
 * Add CPR and HFPLL for QCS404
 * Enable full CPUfreq (with AVS) for QCS404
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Merge tag 'qcom-arm64-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt

Qualcomm ARM64 DT updates for v5.6

* Align SDM845 firmware paths with linux-firmware
* Make WiFi work on Dragonboard845c
* Wire up wakeup controller for SDM845
* Critical thermal interrupt support for SDM845, MSM8996 and MSM8998
* Enable UFS for SM8150
* Add remoteproc enablers and nodes for SM8150
* Add CPUfreq for SM8150
* Add RPMH power-domain node for SM8150
* Cleanup and refactor MSM8996 dts structure
* Add initial Inforce Computing IFC6640 dts
* Increase MSM8996 core voltage
* Fix MSM8996 USB phy settings
* Add missing alias for BLSP UART in MSM8998 MTP
* Add remoteproc nodes for ADSP, modem and sensor core for MSM8998
* Enable WiFI for MSM8998
* Introduce the SC7180 platform and the IDP development board
* Add CPUfreq, QUPs, USB, remoteproc etc for SC7180
* Enable USB OTG for Dragonboard 410c
* Add vibrator motor node for PM8916
* Properly specify APCS clocks for MSM8916
* Add CPR and HFPLL for QCS404
* Enable full CPUfreq (with AVS) for QCS404

* tag 'qcom-arm64-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (88 commits)
  arm64: dts: qcom: sdm845: move gpu zap nodes to per-device dts
  arm64: dts: qcom: sm8150: Hard code rpmhpd constants
  arm64: dts: apq8096-db820c: Fix VDD core voltage
  arm64: dts: qcom: qcs404-evb: Set vdd_apc regulator in high power mode
  arm64: dts: qcom: msm8998-mtp: Add alias for blsp1_uart3
  arm64: dts: qcom: sc7180: Add critical interrupt and cooling maps for TSENS in SC7180
  arm64: dts: qcom: msm8996: Fix venus iommu nodename error
  arm64: dts: qcom: sdm845: add the ufs reset
  arm64: dts: qcom: sm8150: Fix UFS phy register size
  arm64: dts: qcom: sm8150-mtp: Add UFS gpio reset
  arm64: dts: qcom: qcs404: Add CPR and populate OPP table
  arm64: dts: qcom: qcs404: Add DVFS support
  arm64: dts: qcom: qcs404: Add the clocks for APCS mux/divider
  arm64: dts: qcom: qcs404: Add HFPLL node
  arm64: dts: qcom: msm8916: Add the clocks for the APCS mux/divider
  arm64: dts: qcom: sc7180: Add rpmh power-domain node
  arm64: dts: pm8004: Add SPMI regulator and add phandles to lsids
  arm64: dts: msm8998: thermal: Add critical interrupt support
  arm64: dts: msm8996: thermal: Add critical interrupt support
  arm64: dts: qcom: db845c: Move remoteproc firmware to sdm845
  ...

Link: https://lore.kernel.org/r/20200113204225.GB3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:44:16 -08:00
Geert Uytterhoeven
155fc6ba48 ubifs: Fix ino_t format warnings in orphan_delete()
On alpha and s390x:

    fs/ubifs/debug.h:158:11: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘ino_t {aka unsigned int}’ [-Wformat=]
    ...
    fs/ubifs/orphan.c:132:3: note: in expansion of macro ‘dbg_gen’
       dbg_gen("deleted twice ino %lu", orph->inum);
    ...
    fs/ubifs/orphan.c:140:3: note: in expansion of macro ‘dbg_gen’
       dbg_gen("delete later ino %lu", orph->inum);

__kernel_ino_t is "unsigned long" on most architectures, but not on
alpha and s390x, where it is "unsigned int".  Hence when printing an
ino_t, it should always be cast to "unsigned long" first.

Fix this by re-adding the recently removed casts.

Fixes: 8009ce956c ("ubifs: Don't leak orphans on memory during commit")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-17 00:43:22 +01:00
Paul Blakey
61dc7b0141 net/mlx5: Refactor mlx5_create_auto_grouped_flow_table
Refactor mlx5_create_auto_grouped_flow_table() to use ft_attr param
which already carries the max_fte, prio and flags memebers, and is
used the same in similar mlx5_create_flow_table() function.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 15:41:59 -08:00
Alan Maguire
aa811e3cec software node: introduce CONFIG_KUNIT_DRIVER_PE_TEST
Currently the property entry kunit tests are built if CONFIG_KUNIT=y.
This will cause warnings when merged with the kunit tree that now
supports tristate CONFIG_KUNIT.  While the tests appear to compile
as a module, we get a warning about missing module license.

It's better to have a per-test suite CONFIG variable so that
we can do selective building of kunit-based suites, and can
also avoid merge issues like this.

Fixes: c032ace71c ("software node: add basic tests for property entries")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-01-17 00:23:37 +01:00
Rafael J. Wysocki
f7d50a1534 Merge back cpuidle material for v5.6. 2020-01-17 00:18:31 +01:00
Alexander Potapenko
18451f9f9e PM: hibernate: fix crashes with init_on_free=1
Upon resuming from hibernation, free pages may contain stale data from
the kernel that initiated the resume. This breaks the invariant
inflicted by init_on_free=1 that freed pages must be zeroed.

To deal with this problem, make clear_free_pages() also clear the free
pages when init_on_free is enabled.

Fixes: 6471384af2 ("mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options")
Reported-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: 5.3+ <stable@vger.kernel.org> # 5.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-01-16 23:51:45 +01:00
Zhihao Cheng
f5de5b8330 ubifs: Fix deadlock in concurrent bulk-read and writepage
In ubifs, concurrent execution of writepage and bulk read on the same file
may cause ABBA deadlock, for example (Reproduce method see Link):

Process A(Bulk-read starts from page4)         Process B(write page4 back)
  vfs_read                                       wb_workfn or fsync
  ...                                            ...
  generic_file_buffered_read                     write_cache_pages
    ubifs_readpage                                 LOCK(page4)

      ubifs_bulk_read                              ubifs_writepage
        LOCK(ui->ui_mutex)                           ubifs_write_inode

	  ubifs_do_bulk_read                           LOCK(ui->ui_mutex)
	    find_or_create_page(alloc page4)                  ↑
	      LOCK(page4)                   <--     ABBA deadlock occurs!

In order to ensure the serialization execution of bulk read, we can't
remove the big lock 'ui->ui_mutex' in ubifs_bulk_read(). Instead, we
allow ubifs_do_bulk_read() to lock page failed by replacing
find_or_create_page(FGP_LOCK) with
pagecache_get_page(FGP_LOCK | FGP_NOWAIT).

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Suggested-by: zhangyi (F) <yi.zhang@huawei.com>
Cc: <Stable@vger.kernel.org>
Fixes: 4793e7c5e1 ("UBIFS: add bulk-read facility")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206153
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:36:07 +01:00
Sascha Hauer
edec51374b ubifs: Fix wrong memory allocation
In create_default_filesystem() when we allocate the idx node we must use
the idx_node_size we calculated just one line before, not tmp, which
contains completely other data.

Fixes: c4de6d7e43 ("ubifs: Refactor create_default_filesystem()")
Cc: stable@vger.kernel.org # v4.20+
Reported-by: Naga Sureshkumar Relli <nagasure@xilinx.com>
Tested-by: Naga Sureshkumar Relli <nagasure@xilinx.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:36:07 +01:00
Hou Tao
fc55dacf7f ubi: Free the normal volumes in error paths of ubi_attach_mtd_dev()
The allocated normal volumes saved in ubi->volumes are not freed
in the error paths in ubi_attach_mtd_dev() and its callees (e.g.
ubi_attach() and ubi_read_volume_table()).

These normal volumes should be freed through kill_volumes() and
vol_release(), but ubi_attach_mtd_dev() may fail before
calling uif_init(), and there will be memory leaks.

So adding a new helper ubi_free_all_volumes() to free the normal
and the internal volumes. And in order to prevent double-free
of volume, reset ubi->volumes[i] to NULL after freeing.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:35:59 +01:00
Hou Tao
9d6c4742f9 ubi: Check the presence of volume before call ubi_fastmap_destroy_checkmap()
Else there may be oops when fastmap is enabled and init_volumes() fails.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:35:48 +01:00
Eric Biggers
219b0e2cba ubifs: Add support for FS_ENCRYPT_FL
Make the FS_IOC_GETFLAGS ioctl on ubifs return the FS_ENCRYPT_FL flag on
encrypted files, like ext4 and f2fs do.

Also make this flag be ignored by FS_IOC_SETFLAGS, like ext4 and f2fs
do, since it's a recognized flag but is not directly settable.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:35:43 +01:00
Eric Biggers
2b57067a77 ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag
UBIFS's implementation of FS_IOC_SETFLAGS fails to preserve existing
inode flags that aren't settable by FS_IOC_SETFLAGS, namely the encrypt
flag.  This causes the encrypt flag to be unexpectedly cleared.

Fix it by preserving existing unsettable flags, like ext4 and f2fs do.

Test case with kvm-xfstests shell:

    FSTYP=ubifs KEYCTL_PROG=keyctl
    . fs/ubifs/config
    . ~/xfstests/common/encrypt
    dev=$(__blkdev_to_ubi_volume /dev/vdc)
    ubiupdatevol -t $dev
    mount $dev /mnt -t ubifs
    k=$(_generate_session_encryption_key)
    mkdir /mnt/edir
    xfs_io -c "set_encpolicy $k" /mnt/edir
    echo contents > /mnt/edir/file
    chattr +i /mnt/edir/file
    chattr -i /mnt/edir/file

With the bug, the following errors occur on the last command:

    [   18.081559] fscrypt (ubifs, inode 67): Inconsistent encryption context (parent directory: 65)
    chattr: Operation not permitted while reading flags on /mnt/edir/file

Fixes: d475a50745 ("ubifs: Add skeleton for fscrypto")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:35:31 +01:00
YueHaibing
770aa73d89 ubi: wl: Remove set but not used variable 'prev_e'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/mtd/ubi/wl.c: In function 'find_wl_entry':
drivers/mtd/ubi/wl.c:322:27: warning:
 variable 'prev_e' set but not used [-Wunused-but-set-variable]

It's not used any more now, so remove it.

Fixes: f9c34bb529 ("ubi: Fix producing anchor PEBs")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:35:20 +01:00
Sascha Hauer
ef5aafb6e4 ubi: fastmap: Fix inverted logic in seen selfcheck
set_seen() sets the bit corresponding to the PEB number in the bitmap,
so when self_check_seen() wants to find PEBs that haven't been seen we
have to print the PEBs that have their bit cleared, not the ones which
have it set.

Fixes: 5d71afb008 ("ubi: Use bitmaps in Fastmap self-check code")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2020-01-16 23:34:50 +01:00
Aharon Landau
827a8cb2dd net/mlx5e: Add discard counters per priority
Add counters that count (per priority) the number of received
packets that dropped due to lack of buffers on a physical port. If
this counter is increasing, it implies that the adapter is
congested and cannot absorb the traffic coming from the network.

Signed-off-by: Aharon Landau <aharonl@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:33 -08:00
Aya Levin
a58837f52d net/mlx5e: Expose FEC feilds and related capability bit
Introduce 50G per lane FEC modes capability bit and newly supported
fields in PPLM register which allow this configuration.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:30 -08:00
Paul Blakey
822e114b50 net/mlx5: Add mlx5_ifc definitions for connection tracking support
Add the required hardware definitions to mlx5_ifc:
ignore_flow_level, registers, copy_header, and fwd_and_modify cap.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Sholomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:28 -08:00
Hamdan Igbaria
31d8bde1c8 net/mlx5: Add copy header action struct layout
Add definition for copy header action, copy action is used
to copy header fields from source to destination.

Signed-off-by: Hamdan Igbaria <hamdani@mellanox.com>
Signed-off-by: Alex Vesker <valex@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:26 -08:00
Aya Levin
609b82727f net/mlx5: Expose resource dump register mapping
Add new register enumeration for resource dump. Add layout mapping for
resource dump: access command and response.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:23 -08:00
Eran Ben Elisha
bab58ba10e net/mlx5: Add structures and defines for MIRC register
Add needed structures, layouts and defines for MIRC (Management Image
Re-activation Control) register. This structure will be used for the FSM
reactivation flow in the downstream patches.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:21 -08:00
Eran Ben Elisha
932ef15511 net/mlx5: Read MCAM register groups 1 and 2
On load, Driver caches MCAM (Management Capabilities Mask Register)
registers. in addition to the only MCAM register group (0) the driver
already reads, here we add support for reading groups 1 and 2.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:19 -08:00
Eran Ben Elisha
f397464eb7 net/mlx5: Add structures layout for new MCAM access reg groups
MCAM has 3 access_reg_groups (0-2). Defines data structures in order to
read and parse access_reg_groups #1 and #2.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:16 -08:00
Olof Johansson
8b91bcd75a Qualcomm ARM64 defconfig updates for v5.6
* Enable NVMEM and OSM CPUfreq drivers
 * Enable CPR driver
 * Enable HFPLL driver
 * Enable ATH10k SNOC driver
 * Enable PMIC thermal driver
 * Enable wakeup controller driver
 * Enable watchdog driver
 * Enable PRNG driver
 * Enable SN65DSI86 DSI to DisplayPort bridge driver
 * Enable QCA Bluetooth driver
 * Enable Qualcomm SoCinfo driver
 * Enable SPI and QSPI drivers
 * Enable drivers providing remoteproc dependencies
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Merge tag 'qcom-arm64-defconfig-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/defconfig

Qualcomm ARM64 defconfig updates for v5.6

* Enable NVMEM and OSM CPUfreq drivers
* Enable CPR driver
* Enable HFPLL driver
* Enable ATH10k SNOC driver
* Enable PMIC thermal driver
* Enable wakeup controller driver
* Enable watchdog driver
* Enable PRNG driver
* Enable SN65DSI86 DSI to DisplayPort bridge driver
* Enable QCA Bluetooth driver
* Enable Qualcomm SoCinfo driver
* Enable SPI and QSPI drivers
* Enable drivers providing remoteproc dependencies

* tag 'qcom-arm64-defconfig-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: defconfig: enable CONFIG_ARM_QCOM_CPUFREQ_NVMEM
  arm64: defconfig: enable CONFIG_QCOM_CPR
  arm64: defconfig: Enable HFPLL
  arm64: defconfig: Enable ATH10K_SNOC
  arm64: defconfig: Enable QCOM PMIC thermal
  arm64: defconfig: enable PDC interrupt controller for Qualcomm SDM845
  arm64: defconfig: Enable Qualcomm watchdog driver
  arm64: defconfig: Enable Qualcomm pseudo rng
  arm64: defconfig: Enable SN65DSI86 display bridge
  arm64: defconfig: Enable QCA Bluetooth over UART
  arm64: defconfig: Enable Qualcomm CPUfreq HW driver
  arm64: defconfig: Enable Qualcomm socinfo driver
  arm64: defconfig: Enable Qualcomm SPI and QSPI controller
  arm64: defconfig: Enable Qualcomm remoteproc dependencies

Link: https://lore.kernel.org/r/20200113204130.GA3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 14:10:23 -08:00
Olof Johansson
e9d440157e AT91 SoC for 5.5
- Document new SoC: sam9x60
  - rework sam9x60 Kconfig option
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Merge tag 'at91-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/soc

AT91 SoC for 5.5

 - Document new SoC: sam9x60
 - rework sam9x60 Kconfig option

* tag 'at91-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: Documentation: add sam9x60 product and datasheet
  ARM: at91: pm: use of_device_id array to find the proper shdwc node
  ARM: at91: pm: use SAM9X60 PMC's compatible
  ARM: debug-ll: select DEBUG_AT91_RM9200_DBGU for sam9x60
  drivers: soc: atmel: select POWER_RESET_AT91_SAMA5D2_SHDWC for sam9x60
  power: reset: Kconfig: select POWER_RESET_AT91_RESET for sam9x60
  drivers: soc: atmel: move sam9x60 under its own config flag
  ARM: at91: pm: move SAM9X60's PM under its own SoC config flag
  ARM: at91: Kconfig: add config flag for SAM9X60 SoC
  ARM: at91: Kconfig: add sam9x60 pll config flag

Link: https://lore.kernel.org/r/20200113161612.GA1358903@piout.net
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 14:09:31 -08:00
Olof Johansson
6022ce5176 AT91 defconfig for 5.6
- Add sam9x60 to at91_dt_defconfig
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Merge tag 'at91-5.6-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/defconfig

AT91 defconfig for 5.6

 - Add sam9x60 to at91_dt_defconfig

* tag 'at91-5.6-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: configs: at91: enable config flags for sam9x60 SoC
  ARM: configs: at91: use savedefconfig

Link: https://lore.kernel.org/r/20200113161033.GA1358651@piout.net
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 14:09:04 -08:00
Olof Johansson
e59760f70b AT91 DT for 5.6
- Fix sama5d3 peripheral clock rate range
  - New boards: Overkiz Smartikz and Kizbox Mini, Microchip SAMA5D27
    wlsom1-ek
  - sama5d2 sdmcc fixes
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Merge tag 'at91-5.6-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt

AT91 DT for 5.6

 - Fix sama5d3 peripheral clock rate range
 - New boards: Overkiz Smartikz and Kizbox Mini, Microchip SAMA5D27
   wlsom1-ek
 - sama5d2 sdmcc fixes

* tag 'at91-5.6-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: at91: sama5d3: define clock rate range for tcb1
  ARM: dts: at91: sama5d3: fix maximum peripheral clock rates
  ARM: dts: at91: nattis 2: remove unnecessary include
  ARM: dts: at91: add smartkiz support and a common kizboxmini dtsi file
  dt-bindings: arm: at91: Document Kizboxmini and Smartkiz boards binding
  ARM: dts: at91: rearrange kizbox dts using aliases nodes
  ARM: dts: at91: sama5d27_som1_ek: add the microchip,sdcal-inverted on sdmmc0
  ARM: dts: at91: Reenable UART TX pull-ups
  ARM: dts: at91: sama5d2: set the sdmmc gclk frequency
  ARM: dts: at91: sama5d27_som1_ek: add i2c filters properties
  ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek
  dt-bindings: ARM: at91: Document SAMA5D27 WLSOM1 and Evaluation Kit
  ARM: dts: at91: sama5d2: mark secumod as a GPIO controller
  ARM: dts: at91: sama5d2: disable pwm0 by default

Link: https://lore.kernel.org/r/20200113155423.GA1357189@piout.net
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 14:07:25 -08:00
Yonghong Song
35697c12d7 selftests/bpf: Fix test_progs send_signal flakiness with nmi mode
Alexei observed that test_progs send_signal may fail if run
with command line "./test_progs" and the tests will pass
if just run "./test_progs -n 40".

I observed similar issue with nmi subtest failure
and added a delay 100 us in Commit ab8b7f0cb3
("tools/bpf: Add self tests for bpf_send_signal_thread()")
and the problem is gone for me. But the issue still exists
in Alexei's testing environment.

The current code uses sample_freq = 50 (50 events/second), which
may not be enough. But if the sample_freq value is larger than
sysctl kernel/perf_event_max_sample_rate, the perf_event_open
syscall will fail.

This patch changed nmi perf testing to use sample_period = 1,
which means trying to sampling every event. This seems fixing
the issue.

Fixes: ab8b7f0cb3 ("tools/bpf: Add self tests for bpf_send_signal_thread()")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200116174004.1522812-1-yhs@fb.com
2020-01-16 13:28:57 -08:00
Thomas Gleixner
a67ca893ae - Add suspend/resume for Hyper-V clocksource (Dexuan Cui)
- Fix Kconfig indentation (Krzysztof Kozlowski)
 
 - Add SoC specific bindings for RZ/G2N (r8a774b1) (Biju Das)
 
 - Add Microchip PIT64B support (Claudiu Beznea)
 
 - Convert the cadence ttc driver to a platform driver to initialize
   later (Rajan Vaja)
 
 - Fix a memory leak when the initialization fails on bcm2835 (Colin
   Ian King)
 
 - Use the combo devm_platform_ioremap_resource() function for em-sti,
   ti-dm and switch to platform_get_irq (Yangtao Li)
 
 - Fix Exynos naming in the driver (Krzysztof Kozlowski)
 
 - Fix an uninitialized pointer access in ti-dm timer (Tony Lindgren)
 
 - Fix a sparse warning in microchip-pit64b (Claudiu Beznea)
 
 - Code reorg without functional changes for Hyper-V clocksource
   (Andrea Parri)
 
 - Decrease the Hyper-V clocksource rating in order to let the stable
   TSC to be selected instead (Andrea Parri)
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Merge tag 'timers-v5.5-rc6' of https://git.linaro.org/people/daniel.lezcano/linux into timers/core

Pull clocksource/events driver updates from Daniel Lezcano

  - Add suspend/resume for Hyper-V clocksource (Dexuan Cui)

  - Fix Kconfig indentation (Krzysztof Kozlowski)

  - Add SoC specific bindings for RZ/G2N (r8a774b1) (Biju Das)

  - Add Microchip PIT64B support (Claudiu Beznea)

  - Convert the cadence ttc driver to a platform driver to initialize
    later (Rajan Vaja)

  - Fix a memory leak when the initialization fails on bcm2835 (Colin
    Ian King)

  - Use the combo devm_platform_ioremap_resource() function for em-sti,
    ti-dm and switch to platform_get_irq (Yangtao Li)

  - Fix Exynos naming in the driver (Krzysztof Kozlowski)

  - Fix an uninitialized pointer access in ti-dm timer (Tony Lindgren)

  - Fix a sparse warning in microchip-pit64b (Claudiu Beznea)

  - Code reorg without functional changes for Hyper-V clocksource
    (Andrea Parri)

  - Decrease the Hyper-V clocksource rating in order to let the stable
    TSC to be selected instead (Andrea Parri)
2020-01-16 22:24:54 +01:00
Ondrej Mosnacek
dd89b9d9f3 selinux: do not allocate ancillary buffer on first load
In security_load_policy(), we can defer allocating the newpolicydb
ancillary array to after checking state->initialized, thereby avoiding
the pointless allocation when loading policy the first time.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
[PM: merged portions by hand]
Reviewed-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-01-16 16:05:25 -05:00
Borislav Petkov
86e9f9d60e EDAC/mce_amd: Make fam_ops static global
... and do not kmalloc a three-pointer struct. Which simplifies
mce_amd_init() a bit.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200116163403.GF27148@zn.tnic
2020-01-16 21:52:48 +01:00
Olof Johansson
2db34041dc mt8173:
- add dynamic power coefficient to the cpu clusters
 - add jpeg decoder node
 
 mt8183:
 - add node for the Global Command Engine (gce)
 - add reset cells to the infracfg node
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Merge tag 'v5.5-next-dts64' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/dt

mt8173:
- add dynamic power coefficient to the cpu clusters
- add jpeg decoder node

mt8183:
- add node for the Global Command Engine (gce)
- add reset cells to the infracfg node

* tag 'v5.5-next-dts64' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  arm64: dts: mt8183: add reset-cells in infracfg
  arm64: dts: mt8173: add Mediatek JPEG Codec
  arm64: dts: add gce node for mt8183
  arm64: dts: mt8173: Add dynamic power node.

Link: https://lore.kernel.org/r/46c1a244-3f74-8069-6600-8ced02775677@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 12:49:35 -08:00
Olof Johansson
7d6292ab11 This is our usual set of DT patches for the Allwinner SoCs.
It's fairly big this time, but the highlights are:
   - Enable cpufreq and CPU thermal throttling on the A64
     - CLK_CPUX macro usage removed (changed from first pull request)
   - CSI0 support on the R40
   - CSI1 support on the A10 and A20
   - SPI support on the R40
   - PMU support on the H3, H5, H6 and R40
   - MIPI-DSI support on the A64
   - PWM support on the H6
   - Thermal sensor on the A64, A83t, H3, H5, H6 and R40
   - More DT schemas fixes and conversions
   - New boards: LibreComputer ALL-H5-CC H5, LibreComputer ALL-H3-IT H5,
                 Pine64 H64 Model B, Neutis N5H3
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Merge tag 'sunxi-dt-for-5.6-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/dt

This is our usual set of DT patches for the Allwinner SoCs.

It's fairly big this time, but the highlights are:
  - Enable cpufreq and CPU thermal throttling on the A64
    - CLK_CPUX macro usage removed (changed from first pull request)
  - CSI0 support on the R40
  - CSI1 support on the A10 and A20
  - SPI support on the R40
  - PMU support on the H3, H5, H6 and R40
  - MIPI-DSI support on the A64
  - PWM support on the H6
  - Thermal sensor on the A64, A83t, H3, H5, H6 and R40
  - More DT schemas fixes and conversions
  - New boards: LibreComputer ALL-H5-CC H5, LibreComputer ALL-H3-IT H5,
                Pine64 H64 Model B, Neutis N5H3

* tag 'sunxi-dt-for-5.6-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (52 commits)
  arm64: dts: allwinner: a64: enable DVFS
  arm64: dts: allwinner: a64: add dtsi with CPU operating points
  arm64: dts: allwinner: a64: add cooling maps and thermal tripping points
  arm64: dts: allwinner: a64: add CPU clock to CPU0-3 nodes
  arm64: dts: allwinner: sun50i-a64: Use macros for newly exported clocks
  ARM: dts: sunxi: Use macros for references to CCU clocks
  arm64: dts: allwinner: h5: Add Libre Computer ALL-H5-CC H5 board
  ARM: dts: sun8i: R40: Add SPI controllers nodes and pinmuxes
  arm64: dts: allwinner: a64: pinebook: Fix lid wakeup
  ARM: dts: sun8i: r40: Add device node for CSI0
  ARM: dts: sun7i: Add CSI1 controller and pinmux options
  ARM: dts: sun4i: Add CSI1 controller and pinmux options
  ARM: dts: sunxi: Add missing LVDS resets and clocks
  ARM: dts: sun8i: r40: Use tcon top clock index macros
  ARM: dts: sun8i: R40: Add PMU node
  ARM: dts: sun8i: R40: Upgrade GICC reg size to 8K
  arm64: dts: allwinner: h6: Add thermal sensor and thermal zones
  ARM: dts: sunxi: Add Libre Computer ALL-H3-IT H5 board
  arm64: dts: allwinner: a64: Add MIPI DSI pipeline
  arm64: dts: allwinner: a64: Add thermal sensors and thermal zones
  ...

Link: https://lore.kernel.org/r/20200113095555.GA29848@wens.csie.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 12:48:52 -08:00
Olof Johansson
a9e3e12f3f NXP/FSL SoC driver updates for v5.6
QUICC Engine drivers
 - Improve the QE drivers to be compatible with ARM/ARM64/PPC64
 architectures
 - Various cleanups to the QE drivers
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Merge tag 'soc-fsl-next-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.6

QUICC Engine drivers
- Improve the QE drivers to be compatible with ARM/ARM64/PPC64
architectures
- Various cleanups to the QE drivers

* tag 'soc-fsl-next-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux: (49 commits)
  soc: fsl: qe: remove set but not used variable 'mm_gc'
  soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE
  soc: fsl: qe: remove unused #include of asm/irq.h from ucc.c
  net: ethernet: freescale: make UCC_GETH explicitly depend on PPC32
  net/wan/fsl_ucc_hdlc: reject muram offsets above 64K
  net/wan/fsl_ucc_hdlc: fix reading of __be16 registers
  net/wan/fsl_ucc_hdlc: avoid use of IS_ERR_VALUE()
  soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c
  soc: fsl: qe: drop pointless check in qe_sdma_init()
  soc: fsl: qe: drop use of IS_ERR_VALUE in qe_sdma_init()
  soc: fsl: qe: avoid IS_ERR_VALUE in ucc_slow.c
  soc: fsl: qe: refactor cpm_muram_alloc_common to prevent BUG on error path
  soc: fsl: qe: drop broken lazy call of cpm_muram_init()
  soc: fsl: qe: make cpm_muram_free() ignore a negative offset
  soc: fsl: qe: make cpm_muram_free() return void
  soc: fsl: qe: change return type of cpm_muram_alloc() to s32
  serial: ucc_uart: access __be32 field using be32_to_cpu
  serial: ucc_uart: limit brg-frequency workaround to PPC32
  serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe()
  serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32
  ...

Link: https://lore.kernel.org/r/1578608351-23289-1-git-send-email-leoyang.li@nxp.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 12:47:13 -08:00
Jonas Meurer
c052bf82c6 PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior
The sysfs attribute `/sys/power/sync_on_suspend` controls, whether or not
filesystems are synced by the kernel before system suspend.

Congruously, the behaviour of build-time switch CONFIG_SUSPEND_SKIP_SYNC
is slightly changed: It now defines the run-tim default for the new sysfs
attribute `/sys/power/sync_on_suspend`.

The run-time attribute is added because the existing corresponding
build-time Kconfig flag for (`CONFIG_SUSPEND_SKIP_SYNC`) is not flexible
enough. E.g. Linux distributions that provide pre-compiled kernels
usually want to stick with the default (sync filesystems before suspend)
but under special conditions this needs to be changed.

One example for such a special condition is user-space handling of
suspending block devices (e.g. using `cryptsetup luksSuspend` or `dmsetup
suspend`) before system suspend. The Kernel trying to sync filesystems
after the underlying block device already got suspended obviously leads
to dead-locks. Be aware that you have to take care of the filesystem sync
yourself before suspending the system in those scenarios.

Signed-off-by: Jonas Meurer <jonas@freesources.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-01-16 21:47:03 +01:00
Christophe Leroy
49a101d716 lib/vdso: Only read hrtimer_res when needed in __cvdso_clock_getres()
Only perform READ_ONCE(vd[CS_HRES_COARSE].hrtimer_res) for
HRES and RAW clocks.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/7ac2f0d21652f95e2bbdfa6bd514ae6c7caf53ab.1579196675.git.christophe.leroy@c-s.fr
2020-01-16 21:24:46 +01:00
Thomas Gleixner
99570c3da9 MIPS: vdso: Define BUILD_VDSO32 when building a 32bit kernel
The confinement of the 32bit specific VDSO functions missed to define
BUILD_VDSO32 when building a 32bit MIPS kernel:

arch/mips/vdso/vgettimeofday.c: In function __vdso_clock_gettime:
arch/mips/vdso/vgettimeofday.c:17:9: error: implicit declaration of function __cvdso_clock_gettime32

arch/mips/vdso/vgettimeofday.c: In function __vdso_clock_getres:
arch/mips/vdso/vgettimeofday.c:39:9: error: implicit declaration of function __cvdso_clock_getres_time32

Force the define for 32bit builds in the VDSO Makefile.

Fixes: bf279849ad ("lib/vdso: Build 32 bit specific functions in the right context")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul Burton <paulburton@kernel.org>
Link: https://lore.kernel.org/r/87d0bjfaqa.fsf@nanos.tec.linutronix.de
2020-01-16 21:24:25 +01:00
Jack Morgenstein
eaad647e5c IB/mlx4: Fix memory leak in add_gid error flow
In procedure mlx4_ib_add_gid(), if the driver is unable to update the FW
gid table, there is a memory leak in the driver's copy of the gid table:
the gid entry's context buffer is not freed.

If such an error occurs, free the entry's context buffer, and mark the
entry as available (by setting its context pointer to NULL).

Fixes: e26be1bfef ("IB/mlx4: Implement ib_device callbacks")
Link: https://lore.kernel.org/r/20200115085050.73746-1-leon@kernel.org
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-16 16:13:22 -04:00
Avihai Horon
d7fab91637 IB/mlx5: Expose RoCE accelerator counters
Introduce the following RoCE accelerator counters:
* roce_adp_retrans - number of adaptive retransmission for RoCE traffic.
* roce_adp_retrans_to - number of times RoCE traffic reached time out
  due to adaptive retransmission.
* roce_slow_restart - number of times RoCE slow restart was used.
* roce_slow_restart_cnps - number of times RoCE slow restart
  generate CNP packets.
* roce_slow_restart_trans - number of times RoCE slow restart change
  state to slow restart.

Link: https://lore.kernel.org/r/20200115145459.83280-3-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-16 16:11:52 -04:00
Siddhesh Poyarekar
6b64a650f0 kselftest: Minimise dependency of get_size on C library interfaces
It was observed[1] on arm64 that __builtin_strlen led to an infinite
loop in the get_size selftest.  This is because __builtin_strlen (and
other builtins) may sometimes result in a call to the C library
function.  The C library implementation of strlen uses an IFUNC
resolver to load the most efficient strlen implementation for the
underlying machine and hence has a PLT indirection even for static
binaries.  Because this binary avoids the C library startup routines,
the PLT initialization never happens and hence the program gets stuck
in an infinite loop.

On x86_64 the __builtin_strlen just happens to expand inline and avoid
the call but that is not always guaranteed.

Further, while testing on x86_64 (Fedora 31), it was observed that the
test also failed with a segfault inside write() because the generated
code for the write function in glibc seems to access TLS before the
syscall (probably due to the cancellation point check) and fails
because TLS is not initialised.

To mitigate these problems, this patch reduces the interface with the
C library to just the syscall function.  The syscall function still
sets errno on failure, which is undesirable but for now it only
affects cases where syscalls fail.

[1] https://bugs.linaro.org/show_bug.cgi?id=5479

Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org>
Reported-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Tested-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Tim Bird <tim.bird@sony.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-01-16 13:08:26 -07:00
Miroslav Benes
e1dae517a0 selftests/livepatch: Remove unused local variable in set_ftrace_enabled()
set_ftrace_enabled() contains unused local variable "sysctl". Remove it.

Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-01-16 13:05:49 -07:00