1. 16 4月, 2019 15 次提交
  2. 06 4月, 2019 25 次提交
    • G
      Linux 4.19.34 · 4d552acf
      Greg Kroah-Hartman 提交于
      4d552acf
    • A
      kprobes/x86: Blacklist non-attachable interrupt functions · d5813e77
      Andrea Righi 提交于
      [ Upstream commit a50480cb6d61d5c5fc13308479407b628b6bc1c5 ]
      
      These interrupt functions are already non-attachable by kprobes.
      Blacklist them explicitly so that they can show up in
      /sys/kernel/debug/kprobes/blacklist and tools like BCC can use this
      additional information.
      Signed-off-by: NAndrea Righi <righi.andrea@gmail.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Yonghong Song <yhs@fb.com>
      Link: http://lkml.kernel.org/r/20181206095648.GA8249@DellSigned-off-by: NIngo Molnar <mingo@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      d5813e77
    • C
      bcache: fix potential div-zero error of writeback_rate_p_term_inverse · e7d26616
      Coly Li 提交于
      [ Upstream commit 5b5fd3c94eef69dcfaa8648198e54c92e5687d6d ]
      
      Current code already uses d_strtoul_nonzero() to convert input string
      to an unsigned integer, to make sure writeback_rate_p_term_inverse
      won't be zero value. But overflow may happen when converting input
      string to an unsigned integer value by d_strtoul_nonzero(), then
      dc->writeback_rate_p_term_inverse can still be set to 0 even if the
      sysfs file input value is not zero, e.g. 4294967296 (a.k.a UINT_MAX+1).
      
      If dc->writeback_rate_p_term_inverse is set to 0, it might cause a
      dev-zero error in following code from __update_writeback_rate(),
      	int64_t proportional_scaled =
      		div_s64(error, dc->writeback_rate_p_term_inverse);
      
      This patch replaces d_strtoul_nonzero() by sysfs_strtoul_clamp() and
      limit the value range in [1, UINT_MAX]. Then the unsigned integer
      overflow and dev-zero error can be avoided.
      Signed-off-by: NColy Li <colyli@suse.de>
      Signed-off-by: NJens Axboe <axboe@kernel.dk>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      e7d26616
    • H
      ACPI / video: Extend chassis-type detection with a "Lunch Box" check · 09abe130
      Hans de Goede 提交于
      [ Upstream commit d693c008e3ca04db5916ff72e68ce661888a913b ]
      
      Commit 53fa1f6e ("ACPI / video: Only default only_lcd to true on
      Win8-ready _desktops_") introduced chassis type detection, limiting the
      lcd_only check for the backlight to devices where the chassis-type
      indicates their is no builtin LCD panel.
      
      The purpose of the lcd_only check is to avoid advertising a backlight
      interface on desktops, since skylake and newer machines seem to always
      have a backlight interface even if there is no LCD panel. The limiting
      of this check to desktops only was done to avoid breaking backlight
      support on some laptops which do not have the lcd flag set.
      
      The Fujitsu ESPRIMO Q910 which is a compact (NUC like) desktop machine
      has a chassis type of 0x10 aka "Lunch Box". Without the lcd_only check
      we end up falsely advertising backlight/brightness control on this
      device. This commit extend the dmi_is_desktop check to return true
      for type 0x10 to fix this.
      
      Fixes: 53fa1f6e ("ACPI / video: Only default only_lcd to true ...")
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      09abe130
    • N
      net: stmmac: Avoid one more sometimes uninitialized Clang warning · d1d2ca98
      Nathan Chancellor 提交于
      [ Upstream commit 1f5d861f7fefa971b2c6e766f77932c86419a319 ]
      
      When building with -Wsometimes-uninitialized, Clang warns:
      
      drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:111:2: error: variable
      'ns' is used uninitialized whenever 'if' condition is false
      [-Werror,-Wsometimes-uninitialized]
      drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:111:2: error: variable
      'ns' is used uninitialized whenever '&&' condition is false
      [-Werror,-Wsometimes-uninitialized]
      
      Clang is concerned with the use of stmmac_do_void_callback (which
      stmmac_get_systime wraps), as it may fail to initialize these values if
      the if condition was ever false (meaning the callback doesn't exist).
      It's not wrong because the callback is what initializes ns. While it's
      unlikely that the callback is going to disappear at some point and make
      that condition false, we can easily avoid this warning by zero
      initializing the variable.
      
      Link: https://github.com/ClangBuiltLinux/linux/issues/384
      Fixes: df103170854e ("net: stmmac: Avoid sometimes uninitialized Clang warnings")
      Suggested-by: NNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: NNathan Chancellor <natechancellor@gmail.com>
      Reviewed-by: NNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      d1d2ca98
    • V
      drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers · 972e31ba
      Ville Syrjälä 提交于
      [ Upstream commit c978ae9bde582e82a04c63a4071701691dd8b35c ]
      
      We aren't supposed to force a stop+start between every i2c msg
      when performing multi message transfers. This should eg. cause
      the DDC segment address to be reset back to 0 between writing
      the segment address and reading the actual EDID extension block.
      
      To quote the E-DDC spec:
      "... this standard requires that the segment pointer be
       reset to 00h when a NO ACK or a STOP condition is received."
      
      Since we're going to touch this might as well consult the
      I2C_M_STOP flag to determine whether we want to force the stop
      or not.
      
      Cc: Brian Vincent <brainn@gmail.com>
      References: https://bugs.freedesktop.org/show_bug.cgi?id=108081Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20180928180403.22499-1-ville.syrjala@linux.intel.comReviewed-by: NDhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      972e31ba
    • H
      Input: soc_button_array - fix mapping of the 5th GPIO in a PNP0C40 device · 986a2bb5
      Hans de Goede 提交于
      [ Upstream commit e9eb788f9442d1b5d93efdb30c3be071ce8a22b1 ]
      
      The Microsoft documenation for the PNP0C40 device aka the
      "Windows-compatible button array" describes the 5th GpioInt listed in
      the resources as: '5. Interrupt corresponding to the "Rotation Lock"
      button, if supported'.
      
      Notice this describes the 5th entry as a button while we sofar have been
      mapping it to EV_SW, SW_ROTATE_LOCK. On my Point of View TAB P1006W-232
      which actually comes with a rotation-lock button, the button indeed is a
      button and not a slider/switch. An image search for other Windows tablets
      has found 2 more models with a rotation-lock button and on both of those
      it too is a push-button and not a slider/switch.
      
      Further evidence can be found in the HUT extension HUTRR52 from Microsoft
      which adds rotation lock support to the HUT, which describes 2 different
      usages: "0xC9 System Display Rotation Lock Button" and
      "0xCA System Display Rotation Lock Slider Switch" note that switch is seen
      as a separate thing here and the non switch wording is an exact match for
      the "Windows-compatible button array" spec wording.
      
      TL;DR: our current mapping of the 5th GPIO to SW_ROTATE_LOCK is wrong
      because the 5th GPIO is for a push-button not a switch.
      
      This commit fixes this by maping the 5th GPIO to KEY_ROTATE_LOCK_TOGGLE.
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      986a2bb5
    • B
      dmaengine: tegra: avoid overflow of byte tracking · 6d2817e2
      Ben Dooks 提交于
      [ Upstream commit e486df39305864604b7e25f2a95d51039517ac57 ]
      
      The dma_desc->bytes_transferred counter tracks the number of bytes
      moved by the DMA channel. This is then used to calculate the information
      passed back in the in the tegra_dma_tx_status callback, which is usually
      fine.
      
      When the DMA channel is configured as continous, then the bytes_transferred
      counter will increase over time and eventually overflow to become negative
      so the residue count will become invalid and the ALSA sound-dma code will
      report invalid hardware pointer values to the application. This results in
      some users becoming confused about the playout position and putting audio
      data in the wrong place.
      
      To fix this issue, always ensure the bytes_transferred field is modulo the
      size of the request. We only do this for the case of the cyclic transfer
      done ISR as anyone attempting to move 2GiB of DMA data in one transfer
      is unlikely.
      
      Note, we don't fix the issue that we should /never/ transfer a negative
      number of bytes so we could make those fields unsigned.
      Reviewed-by: NDmitry Osipenko <digetx@gmail.com>
      Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk>
      Acked-by: NJon Hunter <jonathanh@nvidia.com>
      Signed-off-by: NVinod Koul <vkoul@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      6d2817e2
    • K
      clk: rockchip: fix frac settings of GPLL clock for rk3328 · 7386f095
      Katsuhiro Suzuki 提交于
      [ Upstream commit a0e447b0c50240a90ab84b7126b3c06b0bab4adc ]
      
      This patch fixes settings of GPLL frequency in fractional mode for
      rk3328. In this mode, FOUTVCO is calcurated by following formula:
        FOUTVCO = FREF * FBDIV / REFDIV + ((FREF * FRAC / REFDIV) >> 24)
      
      The problem is in FREF * FRAC >> 24 term. This result always lacks
      one from target value is specified by rate member. For example first
      itme of rk3328_pll_frac_rate originally has
        - rate  : 1016064000
        - refdiv: 3
        - fbdiv : 127
        - frac  : 134217
        - FREF * FBDIV / REFDIV        = 1016000000
        - (FREF * FRAC / REFDIV) >> 24 = 63999
      Thus calculated rate is 1016063999. It seems wrong.
      
      If frac has 134218 (it is increased 1 from original value), second
      term is 64000. All other items have same situation. So this patch
      adds 1 to frac member in all items of rk3328_pll_frac_rate.
      Signed-off-by: NKatsuhiro Suzuki <katsuhiro@katsuster.net>
      Acked-by: NElaine Zhang <zhangqing@rock-chips.com>
      Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      7386f095
    • J
      clk: meson: clean-up clock registration · c8e4f840
      Jerome Brunet 提交于
      [ Upstream commit 8d9981efbcab066d17af4d3c85c169200f6f78df ]
      
      Order, ids and size  between the table of regmap clocks and the onecell
      data table could be different.
      
      Set regmap pointer in all the regmap clocks before starting the
      registration using the onecell data, to make sure we don't
      get into an incoherent situation.
      Signed-off-by: NJerome Brunet <jbrunet@baylibre.com>
      Acked-by: NNeil Armstrong <narmstrong@baylibre.com>
      Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
      Link: https://lkml.kernel.org/r/20181221160239.26265-3-jbrunet@baylibre.comSigned-off-by: NSasha Levin <sashal@kernel.org>
      c8e4f840
    • P
      drm/fb-helper: fix leaks in error path of drm_fb_helper_fbdev_setup · 6251c1db
      Peter Wu 提交于
      [ Upstream commit 00eb5b0da8d27b3c944bfc959c3344d665caae26 ]
      
      After drm_fb_helper_fbdev_setup calls drm_fb_helper_init,
      "dev->fb_helper" will be initialized (and thus drm_fb_helper_fini will
      have some effect). After that, drm_fb_helper_initial_config is called
      which may call the "fb_probe" driver callback.
      
      This driver callback may call drm_fb_helper_defio_init (as is done by
      drm_fb_helper_generic_probe) or set a framebuffer (as is done by bochs)
      as documented. These are normally cleaned up on exit by
      drm_fb_helper_fbdev_teardown which also calls drm_fb_helper_fini.
      
      If an error occurs after "fb_probe", but before setup is complete, then
      calling just drm_fb_helper_fini will leak resources. This was triggered
      by df2052cc922 ("bochs: convert to drm_fb_helper_fbdev_setup/teardown"):
      
          [   50.008030] bochsdrmfb: enable CONFIG_FB_LITTLE_ENDIAN to support this framebuffer
          [   50.009436] bochs-drm 0000:00:02.0: [drm:drm_fb_helper_fbdev_setup] *ERROR* fbdev: Failed to set configuration (ret=-38)
          [   50.011456] [drm] Initialized bochs-drm 1.0.0 20130925 for 0000:00:02.0 on minor 2
          [   50.013604] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/drm_mode_config.c:477 drm_mode_config_cleanup+0x280/0x2a0
          [   50.016175] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G                T 4.20.0-rc7 #1
          [   50.017732] EIP: drm_mode_config_cleanup+0x280/0x2a0
          ...
          [   50.023155] Call Trace:
          [   50.023155]  ? bochs_kms_fini+0x1e/0x30
          [   50.023155]  ? bochs_unload+0x18/0x40
      
      This can be reproduced with QEMU and CONFIG_FB_LITTLE_ENDIAN=n.
      
      Link: https://lkml.kernel.org/r/20181221083226.GI23332@shao2-debian
      Link: https://lkml.kernel.org/r/20181223004315.GA11455@al
      Fixes: 87412163 ("drm/fb-helper: Add drm_fb_helper_fbdev_setup/teardown()")
      Reported-by: Nkernel test robot <rong.a.chen@intel.com>
      Cc: Noralf Trønnes <noralf@tronnes.org>
      Signed-off-by: NPeter Wu <peter@lekensteyn.nl>
      Reviewed-by: NNoralf Trønnes <noralf@tronnes.org>
      Signed-off-by: NNoralf Trønnes <noralf@tronnes.org>
      Link: https://patchwork.freedesktop.org/patch/msgid/20181223005507.28328-1-peter@lekensteyn.nlSigned-off-by: NSasha Levin <sashal@kernel.org>
      6251c1db
    • R
      x86/build: Mark per-CPU symbols as absolute explicitly for LLD · 648b949b
      Rafael Ávila de Espíndola 提交于
      [ Upstream commit d071ae09a4a1414c1433d5ae9908959a7325b0ad ]
      
      Accessing per-CPU variables is done by finding the offset of the
      variable in the per-CPU block and adding it to the address of the
      respective CPU's block.
      
      Section 3.10.8 of ld.bfd's documentation states:
      
        For expressions involving numbers, relative addresses and absolute
        addresses, ld follows these rules to evaluate terms:
      
        Other binary operations, that is, between two relative addresses
        not in the same section, or between a relative address and an
        absolute address, first convert any non-absolute term to an
        absolute address before applying the operator."
      
      Note that LLVM's linker does not adhere to the GNU ld's implementation
      and as such requires implicitly-absolute terms to be explicitly marked
      as absolute in the linker script. If not, it fails currently with:
      
        ld.lld: error: ./arch/x86/kernel/vmlinux.lds:153: at least one side of the expression must be absolute
        ld.lld: error: ./arch/x86/kernel/vmlinux.lds:154: at least one side of the expression must be absolute
        Makefile:1040: recipe for target 'vmlinux' failed
      
      This is not a functional change for ld.bfd which converts the term to an
      absolute symbol anyways as specified above.
      
      Based on a previous submission by Tri Vo <trong@android.com>.
      Reported-by: NDmitry Golovin <dima@golovin.in>
      Signed-off-by: NRafael Ávila de Espíndola <rafael@espindo.la>
      [ Update commit message per Boris' and Michael's suggestions. ]
      Signed-off-by: NNick Desaulniers <ndesaulniers@google.com>
      [ Massage commit message more, fix typos. ]
      Signed-off-by: NBorislav Petkov <bp@suse.de>
      Tested-by: NDmitry Golovin <dima@golovin.in>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Brijesh Singh <brijesh.singh@amd.com>
      Cc: Cao Jin <caoj.fnst@cn.fujitsu.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Masami Hiramatsu <mhiramat@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tri Vo <trong@android.com>
      Cc: dima@golovin.in
      Cc: morbo@google.com
      Cc: x86-ml <x86@kernel.org>
      Link: https://lkml.kernel.org/r/20181219190145.252035-1-ndesaulniers@google.comSigned-off-by: NSasha Levin <sashal@kernel.org>
      648b949b
    • Z
      wlcore: Fix memory leak in case wl12xx_fetch_firmware failure · 52cd9e0e
      Zumeng Chen 提交于
      [ Upstream commit ba2ffc96321c8433606ceeb85c9e722b8113e5a7 ]
      
      Release fw_status, raw_fw_status, and tx_res_if when wl12xx_fetch_firmware
      failed instead of meaningless goto out to avoid the following memory leak
      reports(Only the last one listed):
      
      unreferenced object 0xc28a9a00 (size 512):
        comm "kworker/0:4", pid 31298, jiffies 2783204 (age 203.290s)
        hex dump (first 32 bytes):
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
        backtrace:
          [<6624adab>] kmemleak_alloc+0x40/0x74
          [<500ddb31>] kmem_cache_alloc_trace+0x1ac/0x270
          [<db4d731d>] wl12xx_chip_wakeup+0xc4/0x1fc [wlcore]
          [<76c5db53>] wl1271_op_add_interface+0x4a4/0x8f4 [wlcore]
          [<cbf30777>] drv_add_interface+0xa4/0x1a0 [mac80211]
          [<65bac325>] ieee80211_reconfig+0x9c0/0x1644 [mac80211]
          [<2817c80e>] ieee80211_restart_work+0x90/0xc8 [mac80211]
          [<7e1d425a>] process_one_work+0x284/0x42c
          [<55f9432e>] worker_thread+0x2fc/0x48c
          [<abb582c6>] kthread+0x148/0x160
          [<63144b13>] ret_from_fork+0x14/0x2c
          [< (null)>] (null)
          [<1f6e7715>] 0xffffffff
      Signed-off-by: NZumeng Chen <zumeng.chen@gmail.com>
      Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      52cd9e0e
    • H
      brcmfmac: Use firmware_request_nowarn for the clm_blob · 05b23c66
      Hans de Goede 提交于
      [ Upstream commit 4ad0be160544ffbdafb7cec39bb8e6dd0a97317a ]
      
      The linux-firmware brcmfmac firmware files contain an embedded table with
      per country allowed channels and strength info.
      
      For recent hardware these versions of the firmware are specially build for
      linux-firmware, the firmware files directly available from Cypress rely on
      a separate clm_blob file for this info.
      
      For some unknown reason Cypress refuses to provide the standard firmware
      files + clm_blob files it uses elsewhere for inclusion into linux-firmware,
      instead relying on these special builds with the clm_blob info embedded.
      This means that the linux-firmware firmware versions often lag behind,
      but I digress.
      
      The brcmfmac driver does support the separate clm_blob file and always
      tries to load this. Currently we use request_firmware for this. This means
      that on any standard install, using the standard combo of linux-kernel +
      linux-firmware, we will get a warning:
      "Direct firmware load for ... failed with error -2"
      
      On top of this, brcmfmac itself prints: "no clm_blob available (err=-2),
      device may have limited channels available".
      
      This commit switches to firmware_request_nowarn, fixing almost any brcmfmac
      device logging the warning (it leaves the brcmfmac info message in place).
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      05b23c66
    • O
      selinux: do not override context on context mounts · e30e0b09
      Ondrej Mosnacek 提交于
      [ Upstream commit 53e0c2aa9a59a48e3798ef193d573ade85aa80f5 ]
      
      Ignore all selinux_inode_notifysecctx() calls on mounts with SBLABEL_MNT
      flag unset. This is achived by returning -EOPNOTSUPP for this case in
      selinux_inode_setsecurtity() (because that function should not be called
      in such case anyway) and translating this error to 0 in
      selinux_inode_notifysecctx().
      
      This fixes behavior of kernfs-based filesystems when mounted with the
      'context=' option. Before this patch, if a node's context had been
      explicitly set to a non-default value and later the filesystem has been
      remounted with the 'context=' option, then this node would show up as
      having the manually-set context and not the mount-specified one.
      
      Steps to reproduce:
          # mount -t cgroup2 cgroup2 /sys/fs/cgroup/unified
          # chcon unconfined_u:object_r:user_home_t:s0 /sys/fs/cgroup/unified/cgroup.stat
          # ls -lZ /sys/fs/cgroup/unified
          total 0
          -r--r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.controllers
          -rw-r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.max.depth
          -rw-r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.max.descendants
          -rw-r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.procs
          -r--r--r--. 1 root root unconfined_u:object_r:user_home_t:s0 0 Dec 13 10:41 cgroup.stat
          -rw-r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.subtree_control
          -rw-r--r--. 1 root root system_u:object_r:cgroup_t:s0        0 Dec 13 10:41 cgroup.threads
          # umount /sys/fs/cgroup/unified
          # mount -o context=system_u:object_r:tmpfs_t:s0 -t cgroup2 cgroup2 /sys/fs/cgroup/unified
      
      Result before:
          # ls -lZ /sys/fs/cgroup/unified
          total 0
          -r--r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.controllers
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.max.depth
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.max.descendants
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.procs
          -r--r--r--. 1 root root unconfined_u:object_r:user_home_t:s0 0 Dec 13 10:41 cgroup.stat
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.subtree_control
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0         0 Dec 13 10:41 cgroup.threads
      
      Result after:
          # ls -lZ /sys/fs/cgroup/unified
          total 0
          -r--r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.controllers
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.max.depth
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.max.descendants
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.procs
          -r--r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.stat
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.subtree_control
          -rw-r--r--. 1 root root system_u:object_r:tmpfs_t:s0 0 Dec 13 10:41 cgroup.threads
      Signed-off-by: NOndrej Mosnacek <omosnace@redhat.com>
      Reviewed-by: NStephen Smalley <sds@tycho.nsa.gov>
      Signed-off-by: NPaul Moore <paul@paul-moore.com>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      e30e0b09
    • G
      x86/build: Specify elf_i386 linker emulation explicitly for i386 objects · d2053718
      George Rimar 提交于
      [ Upstream commit 927185c124d62a9a4d35878d7f6d432a166b74e3 ]
      
      The kernel uses the OUTPUT_FORMAT linker script command in it's linker
      scripts. Most of the time, the -m option is passed to the linker with
      correct architecture, but sometimes (at least for x86_64) the -m option
      contradicts the OUTPUT_FORMAT directive.
      
      Specifically, arch/x86/boot and arch/x86/realmode/rm produce i386 object
      files, but are linked with the -m elf_x86_64 linker flag when building
      for x86_64.
      
      The GNU linker manpage doesn't explicitly state any tie-breakers between
      -m and OUTPUT_FORMAT. But with BFD and Gold linkers, OUTPUT_FORMAT
      overrides the emulation value specified with the -m option.
      
      LLVM lld has a different behavior, however. When supplied with
      contradicting -m and OUTPUT_FORMAT values it fails with the following
      error message:
      
        ld.lld: error: arch/x86/realmode/rm/header.o is incompatible with elf_x86_64
      
      Therefore, just add the correct -m after the incorrect one (it overrides
      it), so the linker invocation looks like this:
      
        ld -m elf_x86_64 -z max-page-size=0x200000 -m elf_i386 --emit-relocs -T \
          realmode.lds header.o trampoline_64.o stack.o reboot.o -o realmode.elf
      
      This is not a functional change for GNU ld, because (although not
      explicitly documented) OUTPUT_FORMAT overrides -m EMULATION.
      
      Tested by building x86_64 kernel with GNU gcc/ld toolchain and booting
      it in QEMU.
      
       [ bp: massage and clarify text. ]
      Suggested-by: NDmitry Golovin <dima@golovin.in>
      Signed-off-by: NGeorge Rimar <grimar@accesssoftek.com>
      Signed-off-by: NTri Vo <trong@android.com>
      Signed-off-by: NBorislav Petkov <bp@suse.de>
      Tested-by: NTri Vo <trong@android.com>
      Tested-by: NNick Desaulniers <ndesaulniers@google.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Michael Matz <matz@suse.de>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: morbo@google.com
      Cc: ndesaulniers@google.com
      Cc: ruiu@google.com
      Cc: x86-ml <x86@kernel.org>
      Link: https://lkml.kernel.org/r/20190111201012.71210-1-trong@android.comSigned-off-by: NSasha Levin <sashal@kernel.org>
      d2053718
    • D
      drm/nouveau: Stop using drm_crtc_force_disable · e0662d00
      Daniel Vetter 提交于
      [ Upstream commit 934c5b32a5e43d8de2ab4f1566f91d7c3bf8cb64 ]
      
      The correct way for legacy drivers to update properties that need to
      do a full modeset, is to do a full modeset.
      
      Note that we don't need to call the drm_mode_config_internal helper
      because we're not changing any of the refcounted paramters.
      
      v2: Fixup error handling (Ville). Since the old code didn't bother
      I decided to just delete it instead of adding even more code for just
      error handling.
      
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
      Cc: Sean Paul <seanpaul@chromium.org>
      Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-2-daniel.vetter@ffwll.chSigned-off-by: NSasha Levin <sashal@kernel.org>
      e0662d00
    • P
      drm: Auto-set allow_fb_modifiers when given modifiers at plane init · 1d377200
      Paul Kocialkowski 提交于
      [ Upstream commit 890880ddfdbe256083170866e49c87618b706ac7 ]
      
      When drivers pass non-empty lists of modifiers for initializing their
      planes, we can infer that they allow framebuffer modifiers and set the
      driver's allow_fb_modifiers mode config element.
      
      In case the allow_fb_modifiers element was not set (some drivers tend
      to set them after registering planes), the modifiers will still be
      registered but won't be available to userspace unless the flag is set
      later. However in that case, the IN_FORMATS blob won't be created.
      
      In order to avoid this case and generally reduce the trouble associated
      with the flag, always set allow_fb_modifiers when a non-empty list of
      format modifiers is passed at plane init.
      Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      Signed-off-by: NPaul Kocialkowski <paul.kocialkowski@bootlin.com>
      Signed-off-by: NMaxime Ripard <maxime.ripard@bootlin.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20190104085610.5829-1-paul.kocialkowski@bootlin.comSigned-off-by: NSasha Levin <sashal@kernel.org>
      1d377200
    • M
      pinctrl: meson: meson8b: add the eth_rxd2 and eth_rxd3 pins · 27d6de37
      Martin Blumenstingl 提交于
      [ Upstream commit 6daae00243e622dd3feec7965bfe421ad6dd317e ]
      
      Gigabit Ethernet requires the Ethernet TXD0..3 and RXD0..3 data lines.
      Add the missing eth_rxd2 and eth_rxd3 definitions so we don't have to
      rely on the bootloader to set them up correctly.
      
      The vendor u-boot sources for Odroid-C1 use the following Ethernet
      pinmux configuration:
        SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_6, 0x3f4f);
        SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_7, 0xf00000);
      This translates to the following pin groups in the mainline kernel:
      - register 6 bit  0: eth_rxd1 (DIF_0_P)
      - register 6 bit  1: eth_rxd0 (DIF_0_N)
      - register 6 bit  2: eth_rx_dv (DIF_1_P)
      - register 6 bit  3: eth_rx_clk (DIF_1_N)
      - register 6 bit  6: eth_tx_en (DIF_3_P)
      - register 6 bit  8: eth_ref_clk (DIF_3_N)
      - register 6 bit  9: eth_mdc (DIF_4_P)
      - register 6 bit 10: eth_mdio_en (DIF_4_N)
      - register 6 bit 11: eth_tx_clk (GPIOH_9)
      - register 6 bit 12: eth_txd2 (GPIOH_8)
      - register 6 bit 13: eth_txd3 (GPIOH_7)
      - register 7 bit 20: eth_txd0_0 (GPIOH_6)
      - register 7 bit 21: eth_txd1_0 (GPIOH_5)
      - register 7 bit 22: eth_rxd3 (DIF_2_P)
      - register 7 bit 23: eth_rxd2 (DIF_2_N)
      
      All functions except eth_rxd2 and eth_rxd3 are already supported by the
      pinctrl-meson8b driver.
      Suggested-by: NJianxin Pan <jianxin.pan@amlogic.com>
      Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
      Reviewed-by: NKevin Hilman <khilman@baylibre.com>
      Tested-by: NEmiliano Ingrassia <ingrassia@epigenesys.com>
      Reviewed-by: NEmiliano Ingrassia <ingrassia@epigenesys.com>
      Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      27d6de37
    • A
      regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting · 61174e34
      Axel Lin 提交于
      [ Upstream commit f01a7beb6791f1c419424c1a6958b7d0a289c974 ]
      
      The act8600_sudcdc_voltage_ranges setting does not match the datasheet.
      
      The problems in below entry:
        REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),
      
      1. The off-by-one min_sel causes wrong volatage calculation.
         The min_sel should be 192.
      2. According to the datasheet[1] Table 7. (on page 43):
         The selector 248 (0b11111000) ~ 255 (0b11111111) are 41.400V.
      
      Also fix off-by-one for ACT8600_SUDCDC_VOLTAGE_NUM.
      
      [1] https://active-semi.com/wp-content/uploads/ACT8600_Datasheet.pdf
      
      Fixes: df3a950e ("regulator: act8865: Add act8600 support")
      Signed-off-by: NAxel Lin <axel.lin@ingics.com>
      Signed-off-by: NMark Brown <broonie@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      61174e34
    • P
      media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration · bcdd4a5e
      Pawe? Chmiel 提交于
      [ Upstream commit 49710c32cd9d6626a77c9f5f978a5f58cb536b35 ]
      
      Previously when doing format enumeration, it was returning all
       formats supported by driver, even if they're not supported by hw.
      Add missing check for fmt_ver_flag, so it'll be fixed and only those
       supported by hw will be returned. Similar thing is already done
       in s5p_jpeg_find_format.
      
      It was found by using v4l2-compliance tool and checking result
       of VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS test
      and using v4l2-ctl to get list of all supported formats.
      
      Tested on s5pv210-galaxys (Samsung i9000 phone).
      
      Fixes: bb677f3a ("[media] Exynos4 JPEG codec v4l2 driver")
      Signed-off-by: NPawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
      Reviewed-by: NJacek Anaszewski <jacek.anaszewski@gmail.com>
      [hverkuil-cisco@xs4all.nl: fix a few alignment issues]
      Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      bcdd4a5e
    • S
      media: rcar-vin: Allow independent VIN link enablement · 9bfd4ab5
      Steve Longerbeam 提交于
      [ Upstream commit c5ff0edb8e2270a75935c73217fb0de1abd2d910 ]
      
      There is a block of code in rvin_group_link_notify() that prevents
      enabling a link to a VIN node if any entity in the media graph is
      in use. This prevents enabling a VIN link even if there is an in-use
      entity somewhere in the graph that is independent of the link's
      pipeline.
      
      For example, the code block will prevent enabling a link from
      the first rcar-csi2 receiver to a VIN node even if there is an
      enabled link somewhere far upstream on the second independent
      rcar-csi2 receiver pipeline.
      
      If this code block is meant to prevent modifying a link if any entity
      in the graph is actively involved in streaming (because modifying
      the CHSEL register fields can disrupt any/all running streams), then
      the entities stream counts should be checked rather than the use counts.
      
      (There is already such a check in __media_entity_setup_link() that verifies
      the stream_count of the link's source and sink entities are both zero,
      but that is insufficient, since there should be no running streams in
      the entire graph).
      
      Modify the code block to check the entity stream_count instead of the
      use_count (and elaborate on the comment). VIN node links can now be
      enabled even if there are other independent in-use entities that are
      not streaming.
      
      Fixes: c0cc5aef ("media: rcar-vin: add link notify for Gen3")
      Signed-off-by: NSteve Longerbeam <slongerbeam@gmail.com>
      Reviewed-by: NNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
      Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
      Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      9bfd4ab5
    • F
      netfilter: physdev: relax br_netfilter dependency · 2e6bcc32
      Florian Westphal 提交于
      [ Upstream commit 8e2f311a68494a6677c1724bdcb10bada21af37c ]
      
      Following command:
        iptables -D FORWARD -m physdev ...
      causes connectivity loss in some setups.
      
      Reason is that iptables userspace will probe kernel for the module revision
      of the physdev patch, and physdev has an artificial dependency on
      br_netfilter (xt_physdev use makes no sense unless a br_netfilter module
      is loaded).
      
      This causes the "phydev" module to be loaded, which in turn enables the
      "call-iptables" infrastructure.
      
      bridged packets might then get dropped by the iptables ruleset.
      
      The better fix would be to change the "call-iptables" defaults to 0 and
      enforce explicit setting to 1, but that breaks backwards compatibility.
      
      This does the next best thing: add a request_module call to checkentry.
      This was a stray '-D ... -m physdev' won't activate br_netfilter
      anymore.
      Signed-off-by: NFlorian Westphal <fw@strlen.de>
      Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      2e6bcc32
    • S
      dmaengine: qcom_hidma: initialize tx flags in hidma_prep_dma_* · 24296fbc
      Shunyong Yang 提交于
      [ Upstream commit 875aac8a46424e5b73a9ff7f40b83311b609e407 ]
      
      In async_tx_test_ack(), it uses flags in struct dma_async_tx_descriptor
      to check the ACK status. As hidma reuses the descriptor in a free list
      when hidma_prep_dma_*(memcpy/memset) is called, the flag will keep ACKed
      if the descriptor has been used before. This will cause a BUG_ON in
      async_tx_quiesce().
      
        kernel BUG at crypto/async_tx/async_tx.c:282!
        Internal error: Oops - BUG: 0 1 SMP
        ...
        task: ffff8017dd3ec000 task.stack: ffff8017dd3e8000
        PC is at async_tx_quiesce+0x54/0x78 [async_tx]
        LR is at async_trigger_callback+0x98/0x110 [async_tx]
      
      This patch initializes flags in dma_async_tx_descriptor by the flags
      passed from the caller when hidma_prep_dma_*(memcpy/memset) is called.
      
      Cc: Joey Zheng <yu.zheng@hxt-semitech.com>
      Reviewed-by: NSinan Kaya <okaya@kernel.org>
      Signed-off-by: NShunyong Yang <shunyong.yang@hxt-semitech.com>
      Signed-off-by: NVinod Koul <vkoul@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      24296fbc
    • S
      dmaengine: qcom_hidma: assign channel cookie correctly · c55f4a6e
      Shunyong Yang 提交于
      [ Upstream commit 546c0547555efca8ba8c120716c325435e29df1b ]
      
      When dma_cookie_complete() is called in hidma_process_completed(),
      dma_cookie_status() will return DMA_COMPLETE in hidma_tx_status(). Then,
      hidma_txn_is_success() will be called to use channel cookie
      mchan->last_success to do additional DMA status check. Current code
      assigns mchan->last_success after dma_cookie_complete(). This causes
      a race condition of dma_cookie_status() returns DMA_COMPLETE before
      mchan->last_success is assigned correctly. The race will cause
      hidma_tx_status() return DMA_ERROR but the transaction is actually a
      success. Moreover, in async_tx case, it will cause a timeout panic
      in async_tx_quiesce().
      
       Kernel panic - not syncing: async_tx_quiesce: DMA error waiting for
       transaction
       ...
       Call trace:
       [<ffff000008089994>] dump_backtrace+0x0/0x1f4
       [<ffff000008089bac>] show_stack+0x24/0x2c
       [<ffff00000891e198>] dump_stack+0x84/0xa8
       [<ffff0000080da544>] panic+0x12c/0x29c
       [<ffff0000045d0334>] async_tx_quiesce+0xa4/0xc8 [async_tx]
       [<ffff0000045d03c8>] async_trigger_callback+0x70/0x1c0 [async_tx]
       [<ffff0000048b7d74>] raid_run_ops+0x86c/0x1540 [raid456]
       [<ffff0000048bd084>] handle_stripe+0x5e8/0x1c7c [raid456]
       [<ffff0000048be9ec>] handle_active_stripes.isra.45+0x2d4/0x550 [raid456]
       [<ffff0000048beff4>] raid5d+0x38c/0x5d0 [raid456]
       [<ffff000008736538>] md_thread+0x108/0x168
       [<ffff0000080fb1cc>] kthread+0x10c/0x138
       [<ffff000008084d34>] ret_from_fork+0x10/0x18
      
      Cc: Joey Zheng <yu.zheng@hxt-semitech.com>
      Reviewed-by: NSinan Kaya <okaya@kernel.org>
      Signed-off-by: NShunyong Yang <shunyong.yang@hxt-semitech.com>
      Signed-off-by: NVinod Koul <vkoul@kernel.org>
      Signed-off-by: NSasha Levin <sashal@kernel.org>
      c55f4a6e