Commit Graph

2207 Commits

Author SHA1 Message Date
Linus Torvalds
f40f31cadc f2fs-for-5.7-rc1
In this round, we've mainly focused on fixing bugs and addressing issues in
 recently introduced compression support.
 
 Enhancement:
 - add zstd support, and set LZ4 by default
 - add ioctl() to show # of compressed blocks
 - show mount time in debugfs
 - replace rwsem with spinlock
 - avoid lock contention in DIO reads
 
 Some major bug fixes wrt compression:
 - compressed block count
 - memory access and leak
 - remove obsolete fields
 - flag controls
 
 Other bug fixes and clean ups:
 - fix overflow when handling .flags in inode_info
 - fix SPO issue during resize FS flow
 - fix compression with fsverity enabled
 - potential deadlock when writing compressed pages
 - show missing mount options
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Merge tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've mainly focused on fixing bugs and addressing
  issues in recently introduced compression support.

  Enhancement:
   - add zstd support, and set LZ4 by default
   - add ioctl() to show # of compressed blocks
   - show mount time in debugfs
   - replace rwsem with spinlock
   - avoid lock contention in DIO reads

  Some major bug fixes wrt compression:
   - compressed block count
   - memory access and leak
   - remove obsolete fields
   - flag controls

  Other bug fixes and clean ups:
   - fix overflow when handling .flags in inode_info
   - fix SPO issue during resize FS flow
   - fix compression with fsverity enabled
   - potential deadlock when writing compressed pages
   - show missing mount options"

* tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (66 commits)
  f2fs: keep inline_data when compression conversion
  f2fs: fix to disable compression on directory
  f2fs: add missing CONFIG_F2FS_FS_COMPRESSION
  f2fs: switch discard_policy.timeout to bool type
  f2fs: fix to verify tpage before releasing in f2fs_free_dic()
  f2fs: show compression in statx
  f2fs: clean up dic->tpages assignment
  f2fs: compress: support zstd compress algorithm
  f2fs: compress: add .{init,destroy}_decompress_ctx callback
  f2fs: compress: fix to call missing destroy_compress_ctx()
  f2fs: change default compression algorithm
  f2fs: clean up {cic,dic}.ref handling
  f2fs: fix to use f2fs_readpage_limit() in f2fs_read_multi_pages()
  f2fs: xattr.h: Make stub helpers inline
  f2fs: fix to avoid double unlock
  f2fs: fix potential .flags overflow on 32bit architecture
  f2fs: fix NULL pointer dereference in f2fs_verity_work()
  f2fs: fix to clear PG_error if fsverity failed
  f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile()
  f2fs: don't trigger data flush in foreground operation
  ...
2020-04-07 13:48:26 -07:00
Linus Torvalds
d38c07afc3 powerpc updates for 5.7
- A large series from Nick for 64-bit to further rework our exception vectors,
    and rewrite portions of the syscall entry/exit and interrupt return in C. The
    result is much easier to follow code that is also faster in general.
 
  - Cleanup of our ptrace code to split various parts out that had become badly
    intertwined with #ifdefs over the years.
 
  - Changes to our NUMA setup under the PowerVM hypervisor which should
    hopefully avoid non-sensical topologies which can lead to warnings from the
    workqueue code and other problems.
 
  - MAINTAINERS updates to remove some of our old orphan entries and update the
    status of others.
 
  - Quite a few other small changes and fixes all over the map.
 
 Thanks to:
   Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh
   Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET,
   Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David
   Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R.
   Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie
   Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger,
   Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh
   Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira,
   Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
   Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers,
   Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi
   Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek,
   Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen
   Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing.
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Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Slightly late as I had to rebase mid-week to insert a bug fix:

   - A large series from Nick for 64-bit to further rework our exception
     vectors, and rewrite portions of the syscall entry/exit and
     interrupt return in C. The result is much easier to follow code
     that is also faster in general.

   - Cleanup of our ptrace code to split various parts out that had
     become badly intertwined with #ifdefs over the years.

   - Changes to our NUMA setup under the PowerVM hypervisor which should
     hopefully avoid non-sensical topologies which can lead to warnings
     from the workqueue code and other problems.

   - MAINTAINERS updates to remove some of our old orphan entries and
     update the status of others.

   - Quite a few other small changes and fixes all over the map.

  Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew
  Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen
  Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement
  Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas,
  Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman,
  Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara,
  Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor,
  Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar,
  Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael
  Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
  Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick
  Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat,
  Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff,
  Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G
  Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel
  Datwyler, Vaibhav Jain, YueHaibing"

* tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
  powerpc: Make setjmp/longjmp signature standard
  powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
  powerpc: Suppress .eh_frame generation
  powerpc: Drop -fno-dwarf2-cfi-asm
  powerpc/32: drop unused ISA_DMA_THRESHOLD
  powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
  selftests/powerpc: Fix try-run when source tree is not writable
  powerpc/vmlinux.lds: Explicitly retain .gnu.hash
  powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
  powerpc/ptrace: create ppc_gethwdinfo()
  powerpc/ptrace: create ptrace_get_debugreg()
  powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
  powerpc/ptrace: move register viewing functions out of ptrace.c
  powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
  powerpc/ptrace: split out SPE related functions.
  powerpc/ptrace: split out ALTIVEC related functions.
  powerpc/ptrace: split out VSX related functions.
  powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
  powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
  powerpc/ptrace: remove unused header includes
  ...
2020-04-05 11:12:59 -07:00
Linus Torvalds
0ad5b053d4 Char/Misc driver patches for 5.7-rc1
Here is the big set of char/misc/other driver patches for 5.7-rc1.
 
 Lots of things in here, and it's later than expected due to some reverts
 to resolve some reported issues.  All is now clean with no reported
 problems in linux-next.
 
 Included in here is:
 	- interconnect updates
 	- mei driver updates
 	- uio updates
 	- nvmem driver updates
 	- soundwire updates
 	- binderfs updates
 	- coresight updates
 	- habanalabs updates
 	- mhi new bus type and core
 	- extcon driver updates
 	- some Kconfig cleanups
 	- other small misc driver cleanups and updates
 
 As mentioned, all have been in linux-next for a while, and with the last
 two reverts, all is calm and good.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc/other driver patches for 5.7-rc1.

  Lots of things in here, and it's later than expected due to some
  reverts to resolve some reported issues. All is now clean with no
  reported problems in linux-next.

  Included in here is:
   - interconnect updates
   - mei driver updates
   - uio updates
   - nvmem driver updates
   - soundwire updates
   - binderfs updates
   - coresight updates
   - habanalabs updates
   - mhi new bus type and core
   - extcon driver updates
   - some Kconfig cleanups
   - other small misc driver cleanups and updates

  As mentioned, all have been in linux-next for a while, and with the
  last two reverts, all is calm and good"

* tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits)
  Revert "driver core: platform: Initialize dma_parms for platform devices"
  Revert "amba: Initialize dma_parms for amba devices"
  amba: Initialize dma_parms for amba devices
  driver core: platform: Initialize dma_parms for platform devices
  bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device()
  bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture
  bus: mhi: core: Add support for reading MHI info from device
  misc: rtsx: set correct pcr_ops for rts522A
  speakup: misc: Use dynamic minor numbers for speakup devices
  mei: me: add cedar fork device ids
  coresight: do not use the BIT() macro in the UAPI header
  Documentation: provide IBM contacts for embargoed hardware
  nvmem: core: remove nvmem_sysfs_get_groups()
  nvmem: core: use is_bin_visible for permissions
  nvmem: core: use device_register and device_unregister
  nvmem: core: add root_only member to nvmem device struct
  extcon: axp288: Add wakeup support
  extcon: Mark extcon_get_edev_name() function as exported symbol
  extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER
  dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format
  ...
2020-04-03 13:22:40 -07:00
Linus Torvalds
72f35423e8 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Fix out-of-sync IVs in self-test for IPsec AEAD algorithms

  Algorithms:
   - Use formally verified implementation of x86/curve25519

  Drivers:
   - Enhance hwrng support in caam

   - Use crypto_engine for skcipher/aead/rsa/hash in caam

   - Add Xilinx AES driver

   - Add uacce driver

   - Register zip engine to uacce in hisilicon

   - Add support for OCTEON TX CPT engine in marvell"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits)
  crypto: af_alg - bool type cosmetics
  crypto: arm[64]/poly1305 - add artifact to .gitignore files
  crypto: caam - limit single JD RNG output to maximum of 16 bytes
  crypto: caam - enable prediction resistance in HRWNG
  bus: fsl-mc: add api to retrieve mc version
  crypto: caam - invalidate entropy register during RNG initialization
  crypto: caam - check if RNG job failed
  crypto: caam - simplify RNG implementation
  crypto: caam - drop global context pointer and init_done
  crypto: caam - use struct hwrng's .init for initialization
  crypto: caam - allocate RNG instantiation descriptor with GFP_DMA
  crypto: ccree - remove duplicated include from cc_aead.c
  crypto: chelsio - remove set but not used variable 'adap'
  crypto: marvell - enable OcteonTX cpt options for build
  crypto: marvell - add the Virtual Function driver for CPT
  crypto: marvell - add support for OCTEON TX CPT engine
  crypto: marvell - create common Kconfig and Makefile for Marvell
  crypto: arm/neon - memzero_explicit aes-cbc key
  crypto: bcm - Use scnprintf() for avoiding potential buffer overflow
  crypto: atmel-i2c - Fix wakeup fail
  ...
2020-04-01 14:47:40 -07:00
Shilpasri G Bhat
32377bd2cb powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
Commit bf9571550f ("powerpc/powernv: Add support to clear sensor
groups data") added a mechanism to clear sensor-group data via a sysfs
interface. However, the ABI for that interface has not been
documented.

This patch documents the ABI for the sysfs interface for sensor-groups
and clearing the sensor-groups.

This patch was originally sent by Shilpasri G Bhat on the mailing list:
https://lkml.org/lkml/2018/8/1/85

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1574776274-22355-1-git-send-email-ego@linux.vnet.ibm.com
2020-04-01 14:30:50 +11:00
Linus Torvalds
1f944f976d TTY/Serial patches for 5.7-rc1
Here is the big set of TTY / Serial patches for 5.7-rc1
 
 Lots of console fixups and reworking in here, serial core tweaks
 (doesn't that ever get old, why are we still creating new serial
 devices?), serial driver updates, line-protocol driver updates, and some
 vt cleanups and fixes included in here as well.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big set of TTY / Serial patches for 5.7-rc1

  Lots of console fixups and reworking in here, serial core tweaks
  (doesn't that ever get old, why are we still creating new serial
  devices?), serial driver updates, line-protocol driver updates, and
  some vt cleanups and fixes included in here as well.

  All have been in linux-next with no reported issues"

* tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (161 commits)
  serial: 8250: Optimize irq enable after console write
  serial: 8250: Fix rs485 delay after console write
  vt: vt_ioctl: fix use-after-free in vt_in_use()
  vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
  tty: serial: make SERIAL_SPRD depend on COMMON_CLK
  tty: serial: fsl_lpuart: fix return value checking
  tty: serial: fsl_lpuart: move dma_request_chan()
  ARM: dts: tango4: Make /serial compatible with ns16550a
  ARM: dts: mmp*: Make the serial ports compatible with xscale-uart
  ARM: dts: mmp*: Fix serial port names
  ARM: dts: mmp2-brownstone: Don't redeclare phandle references
  ARM: dts: pxa*: Make the serial ports compatible with xscale-uart
  ARM: dts: pxa*: Fix serial port names
  ARM: dts: pxa*: Don't redeclare phandle references
  serial: omap: drop unused dt-bindings header
  serial: 8250: 8250_omap: Add DMA support for UARTs on K3 SoCs
  serial: 8250: 8250_omap: Work around errata causing spurious IRQs with DMA
  serial: 8250: 8250_omap: Extend driver data to pass FIFO trigger info
  serial: 8250: 8250_omap: Move locking out from __dma_rx_do_complete()
  serial: 8250: 8250_omap: Account for data in flight during DMA teardown
  ...
2020-03-31 16:18:55 -07:00
Linus Torvalds
b3aa112d57 selinux/stable-5.7 PR 20200330
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Merge tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux updates from Paul Moore:
 "We've got twenty SELinux patches for the v5.7 merge window, the
  highlights are below:

   - Deprecate setting /sys/fs/selinux/checkreqprot to 1.

     This flag was originally created to deal with legacy userspace and
     the READ_IMPLIES_EXEC personality flag. We changed the default from
     1 to 0 back in Linux v4.4 and now we are taking the next step of
     deprecating it, at some point in the future we will take the final
     step of rejecting 1.

   - Allow kernfs symlinks to inherit the SELinux label of the parent
     directory. In order to preserve backwards compatibility this is
     protected by the genfs_seclabel_symlinks SELinux policy capability.

   - Optimize how we store filename transitions in the kernel, resulting
     in some significant improvements to policy load times.

   - Do a better job calculating our internal hash table sizes which
     resulted in additional policy load improvements and likely general
     SELinux performance improvements as well.

   - Remove the unused initial SIDs (labels) and improve how we handle
     initial SIDs.

   - Enable per-file labeling for the bpf filesystem.

   - Ensure that we properly label NFS v4.2 filesystems to avoid a
     temporary unlabeled condition.

   - Add some missing XFS quota command types to the SELinux quota
     access controls.

   - Fix a problem where we were not updating the seq_file position
     index correctly in selinuxfs.

   - We consolidate some duplicated code into helper functions.

   - A number of list to array conversions.

   - Update Stephen Smalley's email address in MAINTAINERS"

* tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: clean up indentation issue with assignment statement
  NFS: Ensure security label is set for root inode
  MAINTAINERS: Update my email address
  selinux: avtab_init() and cond_policydb_init() return void
  selinux: clean up error path in policydb_init()
  selinux: remove unused initial SIDs and improve handling
  selinux: reduce the use of hard-coded hash sizes
  selinux: Add xfs quota command types
  selinux: optimize storage of filename transitions
  selinux: factor out loop body from filename_trans_read()
  security: selinux: allow per-file labeling for bpffs
  selinux: generalize evaluate_cond_node()
  selinux: convert cond_expr to array
  selinux: convert cond_av_list to array
  selinux: convert cond_list to array
  selinux: sel_avc_get_stat_idx should increase position index
  selinux: allow kernfs symlinks to inherit parent directory context
  selinux: simplify evaluate_cond_node()
  Documentation,selinux: deprecate setting checkreqprot to 1
  selinux: move status variables out of selinux_ss
2020-03-31 15:07:55 -07:00
Linus Torvalds
4c6ef3b156 Staging/IIO driver patches for 5.7-rc1
Here is the big staging and IIO driver pull request for 5.7-rc1.
 
 We again end up deleting more code than we added here, thanks to finally
 getting rid of the old and obsolete wireless USB stuff, and the exfat
 code (which is coming in again through the vfs tree in a much cleaner
 version).  But some code does come back, with the octeon drivers being
 found to actually be used in the wild, so those deletions are now
 reverted.
 
 Other than those major things, just loads and loads of tiny checkpatch
 cleanups all over the place, along with new IIO drivers and fixes.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the big staging and IIO driver pull request for 5.7-rc1.

  We again end up deleting more code than we added here, thanks to
  finally getting rid of the old and obsolete wireless USB stuff, and
  the exfat code (which is coming in again through the vfs tree in a
  much cleaner version).

  But some code does come back, with the octeon drivers being found to
  actually be used in the wild, so those deletions are now reverted.

  Other than those major things, just loads and loads of tiny checkpatch
  cleanups all over the place, along with new IIO drivers and fixes.

  All have been in linux-next with no reported issues"

[ Stephen Rothwell points out some reported issues due to merge conflicts ]

* tag 'staging-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (415 commits)
  staging: vt6656: Use DIV_ROUND_UP macro instead of specific code
  staging: remove hp100 driver
  staging: wilc1000: Use crc7 in lib/ rather than a private copy
  Staging: rtl8192u: ieee80211: Use netdev_alert().
  Staging: rtl8192u: ieee80211: Use netdev_info() with network devices.
  Staging: rtl8192u: ieee80211: Use netdev_warn() for network devices.
  Staging: rtl8192u: ieee80211: Use netdev_dbg() for debug messages.
  staging: wlan-ng: fix use-after-free Read in hfa384x_usbin_callback
  staging: rtl8723bs: hal: Remove NULL check before kfree
  staging: rtl8723bs: hal: Correct typos in comments
  staging: rtl8723bs: os_dep: Correct typos in comments
  staging: rtl8723bs: core: Correct typos in comments
  staging: rtl8723bs: hal: Remove unnecessary cast on void pointer
  staging: rtl8188eu: cleanup long line in odm.c
  staging: rtl8723bs: hal: Compress return logic
  staging: rtl8723bs: rtw_cmd: Compress lines for immediate return
  staging: rtl8723bs: rtw_efuse: Compress lines for immediate return
  staging: wilc1000: remove label from examples in DT binding documentation
  staging: rtl8723bs: Remove blank line before '}' brace
  Staging: rtl8188eu: hal: Add space around operators
  ...
2020-03-30 14:20:41 -07:00
Linus Torvalds
db34c5ffee USB / PHY patches for 5.7-rc1
Here are the big set of USB and PHY driver patches for 5.7-rc1.
 
 Nothing huge here, some new PHY drivers, loads of USB gadget fixes and
 updates, xhci updates, usb-serial driver updates and new device ids, and
 other minor things.  Full details in the shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / PHY updates from Greg KH:
 "Here are the big set of USB and PHY driver patches for 5.7-rc1.

  Nothing huge here, some new PHY drivers, loads of USB gadget fixes and
  updates, xhci updates, usb-serial driver updates and new device ids,
  and other minor things. Full details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (239 commits)
  USB: cdc-acm: restore capability check order
  usb: cdns3: make signed 1 bit bitfields unsigned
  usb: gadget: fsl: remove unused variable 'driver_desc'
  usb: gadget: f_fs: Fix use after free issue as part of queue failure
  usb: typec: Correct the documentation for typec_cable_put()
  USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
  USB: serial: option: add Wistron Neweb D19Q1
  USB: serial: option: add BroadMobi BM806U
  USB: serial: option: add support for ASKEY WWHC050
  usb: core: Add ACPI support for USB interface devices
  driver core: platform: Reimplement devm_platform_ioremap_resource
  usb: dwc2: convert to devm_platform_get_and_ioremap_resource
  usb: host: hisilicon: convert to devm_platform_get_and_ioremap_resource
  usb: host: xhci-plat: convert to devm_platform_get_and_ioremap_resource
  drivers: provide devm_platform_get_and_ioremap_resource()
  phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHY
  phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHY
  dt-bindings: phy: qcom-qusb2: Add support for overriding Phy tuning parameters
  phy: qcom-qusb2: Add generic QUSB2 V2 PHY support
  dt-bindings: phy: qcom,qusb2: Add compatibles for QUSB2 V2 phy and SC7180
  ...
2020-03-30 13:54:11 -07:00
Alexander Shishkin
8622dfefb6 intel_th: msu: Make stopping the trace optional
Some use cases prefer to keep collecting the trace data into the last
available window while the other windows are being offloaded instead of
stopping the trace. In this scenario, the window switch happens
automatically when the next window becomes available again.

Add an option to allow this and a sysfs attribute to enable it.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200319085152.52183-1-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-24 13:45:24 +01:00
Christian Gromm
4a1a3e9bf5 staging: most: Documentation: move ABI description files out of staging area
This patch moves the ABI description fils sysfs-bus-most and
configfs-most to the kernel's documentation folder.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1583845362-26707-4-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-24 13:42:44 +01:00
Moti Haimovski
5cce51464c habanalabs: add debugfs write64/read64
Allow debug user to write/read 64-bit data through debugfs.
This will expedite the dump process of the (large) internal
memories of the device done during debug.

Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24 10:54:16 +02:00
Mike Leach
05bd70c098 docs: sysfs: coresight: Add sysfs ABI documentation for CTI
Add API usage document for sysfs API in CTI driver.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200320165303.13681-12-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-21 11:32:21 +01:00
Jaegeuk Kim
a7e679b533 f2fs: show mounted time
Let's show mounted time.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-03-19 11:41:25 -07:00
PrasannaKumar Muralidharan
49d37c6b09 Documentation: ABI: nvmem: add documentation for JZ4780 efuse ABI
This patch brings support for the JZ4780 efuse. Currently it only exposes
a read only access to the entire 8K bits efuse memory.

Tested-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200310132257.23358-14-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-19 07:41:03 +01:00
Andy Shevchenko
a3cb39d258 serial: core: Allow detach and attach serial device for console
In the future we would like to disable power management on the serial devices
used as kernel consoles to avoid weird behaviour in some cases. However,
disabling PM may prevent system to go to deep sleep states, which in its turn
leads to the higher power consumption.

Tony Lindgren proposed a work around, i.e. allow user to detach such consoles
to make PM working again. In case user wants to see what's going on, it also
provides a mechanism to attach console back.

Link: https://lists.openwall.net/linux-kernel/2018/09/29/65
Suggested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200217114016.49856-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-17 15:57:59 +01:00
William Breathitt Gray
954ab5cc5f counter: 104-quad-8: Support Differential Encoder Cable Status
The ACCES 104-QUAD-8 series provides status information about the
connection state of the differential encoder cable inputs. This patch
implements support to expose such information from these devices.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08 17:28:53 +00:00
William Breathitt Gray
de65d05563 counter: 104-quad-8: Support Filter Clock Prescaler
The ACCES 104-QUAD-8 series does active filtering on the quadrature
input signals via the PC/104 bus clock (OSC 14.318 MHz). This patch
exposes the filter clock prescaler available on each channel.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08 17:28:52 +00:00
Alexandru Tachici
7e4d75935d Documentation: ABI: testing: ad7192: update sysfs docs
Updated mainline documentation on ad7192 userspace sysfs.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08 17:28:33 +00:00
Badhri Jagan Sridharan
75f81a7ffe usb: typec: Add sysfs node to show cc orientation
Export Type-C orientation information when available.
- "normal": CC1 orientation
- "reverse": CC2 orientation
- "unknown": Orientation cannot be determined.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200226195758.150477-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-04 10:51:21 +01:00
Kenneth Lee
015d239ac0 uacce: add uacce driver
Uacce (Unified/User-space-access-intended Accelerator Framework) targets to
provide Shared Virtual Addressing (SVA) between accelerators and processes.
So accelerator can access any data structure of the main cpu.
This differs from the data sharing between cpu and io device, which share
only data content rather than address.
Since unified address, hardware and user space of process can share the
same virtual address in the communication.

Uacce create a chrdev for every registration, the queue is allocated to
the process when the chrdev is opened. Then the process can access the
hardware resource by interact with the queue file. By mmap the queue
file space to user space, the process can directly put requests to the
hardware without syscall to the kernel space.

The IOMMU core only tracks mm<->device bonds at the moment, because it
only needs to handle IOTLB invalidation and PASID table entries. However
uacce needs a finer granularity since multiple queues from the same
device can be bound to an mm. When the mm exits, all bound queues must
be stopped so that the IOMMU can safely clear the PASID table entry and
reallocate the PASID.

An intermediate struct uacce_mm links uacce devices and queues.
Note that an mm may be bound to multiple devices but an uacce_mm
structure only ever belongs to a single device, because we don't need
anything more complex (if multiple devices are bound to one mm, then
we'll create one uacce_mm for each bond).

        uacce_device --+-- uacce_mm --+-- uacce_queue
                       |              '-- uacce_queue
                       |
                       '-- uacce_mm --+-- uacce_queue
                                      +-- uacce_queue
                                      '-- uacce_queue

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Kenneth Lee <liguozhu@hisilicon.com>
Signed-off-by: Zaibo Xu <xuzaibo@huawei.com>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-02-22 09:25:42 +08:00
Sourabh Jain
d8e73458f3 powerpc/fadump: sysfs for fadump memory reservation
Add a sys interface to allow querying the memory reserved by FADump for
saving the crash dump.

Also added Documentation/ABI for the new sysfs file.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191211160910.21656-7-sourabhjain@linux.ibm.com
2020-02-19 22:46:07 +11:00
Sourabh Jain
3f5f1f22ef Documentation/ABI: Mark /sys/kernel/fadump_* sysfs files deprecated
Add a deprecation note in FADump sysfs ABI documentation files and
move them from ABI/testing to ABI/obsolete directory.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
[mpe: Use a proper table to fix errors from the documentation build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191211160910.21656-6-sourabhjain@linux.ibm.com
2020-02-19 22:45:36 +11:00
Sourabh Jain
8852c07a88 powerpc/powernv: Move core and fadump_release_opalcore under new kobject
The /sys/firmware/opal/core and /sys/kernel/fadump_release_opalcore
sysfs files are used to export and release the OPAL memory on PowerNV
platform. let's organize them into a new kobject under
/sys/firmware/opal/mpipl/ directory.

A symlink is added to maintain the backward compatibility for
/sys/firmware/opal/core sysfs file.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191211160910.21656-5-sourabhjain@linux.ibm.com
2020-02-19 21:07:10 +11:00
Sourabh Jain
d418b19f34 powerpc/fadump: Reorganize /sys/kernel/fadump_* sysfs files
As the number of FADump sysfs files increases it is hard to manage all
of them inside /sys/kernel directory. It's better to have all the
FADump related sysfs files in a dedicated directory
/sys/kernel/fadump. But in order to maintain backward compatibility a
symlink has been added for every sysfs that has moved to new location.

As the FADump sysfs files are now part of a dedicated directory there
is no need to prefix their name with fadump_, hence sysfs file names
are also updated. For example fadump_enabled sysfs file is now
referred as enabled.

Also consolidate ABI documentation for all the FADump sysfs files in a
single file Documentation/ABI/testing/sysfs-kernel-fadump.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Tested-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191211160910.21656-4-sourabhjain@linux.ibm.com
2020-02-19 21:07:09 +11:00
Sourabh Jain
f52153ab38 Documentation/ABI: Add ABI documentation for /sys/kernel/fadump_*
Add missing ABI documentation for existing FADump sysfs files.

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191211160910.21656-2-sourabhjain@linux.ibm.com
2020-02-19 21:07:09 +11:00
Wang Long
3b82a112ce Documentation/ABI: move sysfs-kernel-uids to removed directory
commit 7c9414385e ("sched: Remove USER_SCHED") deleted the
USER_SCHED feature. so move the ABI doc to removed directory.

Signed-off-by: Wang Long <w@laoqinren.net>
Link: https://lore.kernel.org/r/1581082930-30441-1-git-send-email-w@laoqinren.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-02-13 11:39:36 -07:00
Heikki Krogerus
ae4ba35d36 usb: typec: Allow power role swapping even without USB PD
Even though originally the USB Type-C Specification did not
describe the steps for power role swapping without USB PD
contract in place, it did not actually mean power role swap
without USB PD was not allowed. The USB Type-C Specification
did not clearly separate the data and power roles until in
the release 1.2 which is why there also were no clear steps
for the scenario where only the power role was swapped
without USB PD contract before that.

Since in the latest version of the specification the power
role swap without USB PD is now clearly mentioned as allowed
operation, removing the check that prevented power role swap
without USB PD support.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200211112531.86510-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12 10:51:21 -08:00
Stephen Smalley
e9c38f9fc2 Documentation,selinux: deprecate setting checkreqprot to 1
Deprecate setting the SELinux checkreqprot tunable to 1 via kernel
parameter or /sys/fs/selinux/checkreqprot.  Setting it to 0 is left
intact for compatibility since Android and some Linux distributions
do so for security and treat an inability to set it as a fatal error.
Eventually setting it to 0 will become a no-op and the kernel will
stop using checkreqprot's value internally altogether.

checkreqprot was originally introduced as a compatibility mechanism
for legacy userspace and the READ_IMPLIES_EXEC personality flag.
However, if set to 1, it weakens security by allowing mappings to be
made executable without authorization by policy.  The default value
for the SECURITY_SELINUX_CHECKREQPROT_VALUE config option was changed
from 1 to 0 in commit 2a35d196c1 ("selinux: change
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE default") and both Android
and Linux distributions began explicitly setting
/sys/fs/selinux/checkreqprot to 0 some time ago.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-02-10 10:49:01 -05:00
Linus Torvalds
d271ab2923 xen: branch for v5.6-rc1
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Merge tag 'for-linus-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - fix a bug introduced in 5.5 in the Xen gntdev driver

 - fix the Xen balloon driver when running on ancient Xen versions

 - allow Xen stubdoms to control interrupt enable flags of
   passed-through PCI cards

 - release resources in Xen backends under memory pressure

* tag 'for-linus-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/blkback: Consistently insert one empty line between functions
  xen/blkback: Remove unnecessary static variable name prefixes
  xen/blkback: Squeeze page pools if a memory pressure is detected
  xenbus/backend: Protect xenbus callback with lock
  xenbus/backend: Add memory pressure handler callback
  xen/gntdev: Do not use mm notifiers with autotranslating guests
  xen/balloon: Support xend-based toolstack take two
  xen-pciback: optionally allow interrupt enable flag writes
2020-02-05 17:44:14 +00:00
Linus Torvalds
eadc4e40e6 RTC for 5.6
Subsystem:
  - the VL_READ and VL_CLR ioctls are now documented and their behavior is
    unified across all the drivers.
  - RTC_I2C_AND_SPI Kconfig option rework to avoid selecting both REGMAP_I2C and
    REGMAP_SPI unecessarily.
 
 Drivers:
  - at91rm9200: remove deprecated procfs, add sam9x60, sama5d4 and sama5d2
    compatibles.
  - cmos: solve lost interrupts issue on MS Surface 3
  - hym8563: return proper errno when time is invalid
  - rv3029: many fixes, nvram support
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Merge tag 'rtc-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The VL_READ and VL_CLR ioctls have been reworked to be more useful.
  This will not break userspace as there are very few users and they are
  using the integer value as a boolean.

  Apart from that, two drivers were reworked and a few fixes here and
  there for a net reduction of number of lines.

  Summary:

  Subsystem:
   - the VL_READ and VL_CLR ioctls are now documented and their behavior
     is unified across all the drivers.
   - RTC_I2C_AND_SPI Kconfig option rework to avoid selecting both
     REGMAP_I2C and REGMAP_SPI unecessarily.

  Drivers:
   - at91rm9200: remove deprecated procfs, add sam9x60, sama5d4 and
     sama5d2 compatibles.
   - cmos: solve lost interrupts issue on MS Surface 3
   - hym8563: return proper errno when time is invalid
   - rv3029: many fixes, nvram support"

* tag 'rtc-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (63 commits)
  dt-bindings: rtc: at91rm9200: document clocks property
  rtc: i2c/spi: Avoid inclusion of REGMAP support when not needed
  rtc: Kconfig: select REGMAP_I2C when necessary
  rtc: Kconfig: properly indent sd3078 entry
  rtc: cmos: Refactor code by using the new dmi_get_bios_year() helper
  rtc: cmos: Use predefined value for RTC IRQ on legacy x86
  rtc: cmos: Stop using shared IRQ
  rtc: tps6586x: Use IRQ_NOAUTOEN flag
  rtc: at91rm9200: use FIELD_PREP/FIELD_GET
  rtc: at91rm9200: avoid time readout in at91_rtc_setalarm
  rtc: at91rm9200: move register definitions to C file
  rtc: at91rm9200: add sama5d4 and sama5d2 compatibles
  dt-bindings: rtc: at91rm9200: convert bindings to json-schema
  rtc: at91rm9200: remove procfs information
  dt-bindings: atmel, at91rm9200-rtc: add microchip, sam9x60-rtc
  rtc: pcf8563: Use BIT
  rtc: moxart: Convert to SPDX identifier
  rtc: ds1343: Remove unused struct spi_device in struct ds1343_priv
  rtc: rx8025: Remove struct i2c_client from struct rx8025_data
  rtc: hym8563: Read the valid flag directly instead of caching it
  ...
2020-02-04 07:03:40 +00:00
Linus Torvalds
6e135baed8 f2fs-for-5.6
In this series, we've implemented transparent compression experimentally. It
 supports LZO and LZ4, but will add more later as we investigate in the field
 more. At this point, the feature doesn't expose compressed space to user
 directly in order to guarantee potential data updates later to the space.
 Instead, the main goal is to reduce data writes to flash disk as much as
 possible, resulting in extending disk life time as well as relaxing IO
 congestion. Alternatively, we're also considering to add ioctl() to reclaim
 compressed space and show it to user after putting the immutable bit.
 
 Enhancement:
  - add compression support
  - avoid unnecessary locks in quota ops
  - harden power-cut scenario for zoned block devices
  - use private bio_set to avoid IO congestion
  - replace GC mutex with rwsem to serialize callers
 
 Bug fix:
  - fix dentry consistency and memory corruption in rename()'s error case
  - fix wrong swap extent reports
  - fix casefolding bugs
  - change lock coverage to avoid deadlock
  - avoid GFP_KERNEL under f2fs_lock_op
 
 And, we've cleaned up sysfs entries to prepare no debugfs.
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Merge tag 'f2fs-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this series, we've implemented transparent compression
  experimentally. It supports LZO and LZ4, but will add more later as we
  investigate in the field more.

  At this point, the feature doesn't expose compressed space to user
  directly in order to guarantee potential data updates later to the
  space. Instead, the main goal is to reduce data writes to flash disk
  as much as possible, resulting in extending disk life time as well as
  relaxing IO congestion.

  Alternatively, we're also considering to add ioctl() to reclaim
  compressed space and show it to user after putting the immutable bit.

  Enhancements:
   - add compression support
   - avoid unnecessary locks in quota ops
   - harden power-cut scenario for zoned block devices
   - use private bio_set to avoid IO congestion
   - replace GC mutex with rwsem to serialize callers

  Bug fixes:
   - fix dentry consistency and memory corruption in rename()'s error case
   - fix wrong swap extent reports
   - fix casefolding bugs
   - change lock coverage to avoid deadlock
   - avoid GFP_KERNEL under f2fs_lock_op

  And, we've cleaned up sysfs entries to prepare no debugfs"

* tag 'f2fs-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (31 commits)
  f2fs: fix race conditions in ->d_compare() and ->d_hash()
  f2fs: fix dcache lookup of !casefolded directories
  f2fs: Add f2fs stats to sysfs
  f2fs: delete duplicate information on sysfs nodes
  f2fs: change to use rwsem for gc_mutex
  f2fs: update f2fs document regarding to fsync_mode
  f2fs: add a way to turn off ipu bio cache
  f2fs: code cleanup for f2fs_statfs_project()
  f2fs: fix miscounted block limit in f2fs_statfs_project()
  f2fs: show the CP_PAUSE reason in checkpoint traces
  f2fs: fix deadlock allocating bio_post_read_ctx from mempool
  f2fs: remove unneeded check for error allocating bio_post_read_ctx
  f2fs: convert inline_dir early before starting rename
  f2fs: fix memleak of kobject
  f2fs: fix to add swap extent correctly
  f2fs: run fsck when getting bad inode during GC
  f2fs: support data compression
  f2fs: free sysfs kobject
  f2fs: declare nested quota_sem and remove unnecessary sems
  f2fs: don't put new_page twice in f2fs_rename
  ...
2020-01-30 15:39:24 -08:00
Linus Torvalds
4cadc60d6b power supply and reset changes for the v5.6 series
Core:
  * Add battery internal resistance temperature table support
 
 Drivers:
  * sc27xx: Optimize the battery resistance with measuring temperature
  * max17042-battery: Add MAX17055 support
  * bq25890-charger: Add support of BQ25892 and BQ25896 chips
  * misc. fixes
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Merge tag 'for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Add battery internal resistance temperature table support

  Drivers:
   - sc27xx: Optimize the battery resistance with measuring temperature
   - max17042-battery: Add MAX17055 support
   - bq25890-charger: Add support of BQ25892 and BQ25896 chips
   - misc fixes"

* tag 'for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (44 commits)
  power: supply: ipaq_micro_battery: remove unneeded semicolon
  power: supply: bq25890_charger: fix incorrect error return when bq25890_field_read fails
  power: supply: axp20x_usb_power: Only poll while offline
  power: supply: axp20x_usb_power: Add wakeup control
  power: supply: axp20x_usb_power: Allow offlining
  power: supply: axp20x_usb_power: Use a match structure
  power: suppy: ucs1002: Make the symbol 'ucs1002_regulator_enable' static
  power: reset: at91-poweroff: use proper master clock register offset
  power: reset: at91-poweroff: introduce struct shdwc_reg_config
  power: supply: bq25890_charger: Add DT and I2C ids for all supported chips
  dt-bindings: Add new chips to bq25890 binding documentation
  power: supply: bq25890_charger: Add support of BQ25892 and BQ25896 chips
  power: supply: core: Update sysfs-class-power ABI document
  power: supply: sbs-battery: Fix a signedness bug in sbs_get_battery_capacity()
  power: supply: ltc2941-battery-gauge: fix use-after-free
  power: supply: max17040: Correct IRQ wake handling
  power: supply: axp20x_usb_power: Remove unused device_node
  power: supply: axp20x_ac_power: Add wakeup control
  power: supply: axp20x_ac_power: Allow offlining
  power: supply: axp20x_ac_power: Fix reporting online status
  ...
2020-01-30 07:51:24 -08:00
Linus Torvalds
7ba31c3f2f Staging/IIO patches for 5.6-rc1
Here is the big staging/iio driver patches for 5.6-rc1
 
 Included in here are:
 	- lots of new IIO drivers and updates for that subsystem
 	- the usual huge quantity of minor cleanups for staging drivers
 	- removal of the following staging drivers:
 		- isdn/avm
 		- isdn/gigaset
 		- isdn/hysdn
 		- octeon-usb
 		- octeon ethernet
 
 Overall we deleted far more lines than we added, removing over 40k of
 old and obsolete driver code.
 
 All of these changes have been in linux-next for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here is the big staging/iio driver patches for 5.6-rc1

  Included in here are:

   - lots of new IIO drivers and updates for that subsystem

   - the usual huge quantity of minor cleanups for staging drivers

   - removal of the following staging drivers:
       - isdn/avm
       - isdn/gigaset
       - isdn/hysdn
       - octeon-usb
       - octeon ethernet

  Overall we deleted far more lines than we added, removing over 40k of
  old and obsolete driver code.

  All of these changes have been in linux-next for a while with no
  reported issues"

* tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (353 commits)
  staging: most: usb: check for NULL device
  staging: next: configfs: fix release link
  staging: most: core: fix logging messages
  staging: most: core: remove container struct
  staging: most: remove struct device core driver
  staging: most: core: drop device reference
  staging: most: remove device from interface structure
  staging: comedi: drivers: fix spelling mistake "to" -> "too"
  staging: exfat: remove fs_func struct.
  staging: wilc1000: avoid mutex unlock without lock in wilc_wlan_handle_txq()
  staging: wilc1000: return zero on success and non-zero on function failure
  staging: axis-fifo: replace spinlock with mutex
  staging: wilc1000: remove unused code prior to throughput enhancement in SPI
  staging: wilc1000: added 'wilc_' prefix for 'struct assoc_resp' name
  staging: wilc1000: move firmware API struct's to separate header file
  staging: wilc1000: remove use of infinite loop conditions
  staging: kpc2000: rename variables with kpc namespace
  staging: vt6656: Remove memory buffer from vnt_download_firmware.
  staging: vt6656: Just check NEWRSR_DECRYPTOK for RX_FLAG_DECRYPTED.
  staging: vt6656: Use vnt_rx_tail struct for tail variables.
  ...
2020-01-29 10:15:11 -08:00
Linus Torvalds
aac9662671 USB/Thunderbolt/PHY driver updates for 5.6-rc1
Here is the big USB and Thunderbolt and PHY driver updates for 5.6-rc1.
 
 With the advent of USB4, "Thunderbolt" has really become USB4, so the
 renaming of the Kconfig option and starting to share subsystem code has
 begun, hence both subsystems coming in through the same tree here.
 
 PHY driver updates also touched USB drivers, so that is coming in
 through here as well.
 
 Major stuff included in here are:
 	- USB 4 initial support added (i.e. Thunderbolt)
 	- musb driver updates
 	- USB gadget driver updates
 	- PHY driver updates
 	- USB PHY driver updates
 	- lots of USB serial stuff fixed up
 	- USB typec updates
 	- USB-IP fixes
 	- lots of other smaller USB driver updates
 
 All of these have been in linux-next for a while now (the usb-serial
 tree is already tested in linux-next on its own before merged into
 here), with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt/PHY driver updates from Greg KH:
 "Here is the big USB and Thunderbolt and PHY driver updates for
  5.6-rc1.

  With the advent of USB4, "Thunderbolt" has really become USB4, so the
  renaming of the Kconfig option and starting to share subsystem code
  has begun, hence both subsystems coming in through the same tree here.

  PHY driver updates also touched USB drivers, so that is coming in
  through here as well.

  Major stuff included in here are:
   - USB 4 initial support added (i.e. Thunderbolt)
   - musb driver updates
   - USB gadget driver updates
   - PHY driver updates
   - USB PHY driver updates
   - lots of USB serial stuff fixed up
   - USB typec updates
   - USB-IP fixes
   - lots of other smaller USB driver updates

  All of these have been in linux-next for a while now (the usb-serial
  tree is already tested in linux-next on its own before merged into
  here), with no reported issues"

[ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA
  that causes configuration warnings    - Linus ]

* tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
  Doc: ABI: add usb charger uevent
  usb: phy: show USB charger type for user
  usb: cdns3: fix spelling mistake and rework grammar in text
  usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors
  USB: serial: cyberjack: fix spelling mistake "To" -> "Too"
  USB: serial: ir-usb: simplify endpoint check
  USB: serial: ir-usb: make set_termios synchronous
  USB: serial: ir-usb: fix IrLAP framing
  USB: serial: ir-usb: fix link-speed handling
  USB: serial: ir-usb: add missing endpoint sanity check
  usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW
  usb: typec: wcove: fix "op-sink-microwatt" default that was in mW
  usb: dwc3: pci: add ID for the Intel Comet Lake -V variant
  usb: typec: tcpci: mask event interrupts when remove driver
  usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186
  usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined
  usb: chipidea: handle single role for usb role class
  usb: musb: fix spelling mistake: "periperal" -> "peripheral"
  phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS
  USB: usbfs: Always unlink URBs in reverse order
  ...
2020-01-29 10:09:44 -08:00
SeongJae Park
cb9369bdbb xen/blkback: Squeeze page pools if a memory pressure is detected
Each `blkif` has a free pages pool for the grant mapping.  The size of
the pool starts from zero and is increased on demand while processing
the I/O requests.  If current I/O requests handling is finished or 100
milliseconds has passed since last I/O requests handling, it checks and
shrinks the pool to not exceed the size limit, `max_buffer_pages`.

Therefore, host administrators can cause memory pressure in blkback by
attaching a large number of block devices and inducing I/O.  Such
problematic situations can be avoided by limiting the maximum number of
devices that can be attached, but finding the optimal limit is not so
easy.  Improper set of the limit can results in memory pressure or a
resource underutilization.  This commit avoids such problematic
situations by squeezing the pools (returns every free page in the pool
to the system) for a while (users can set this duration via a module
parameter) if memory pressure is detected.

Discussions
===========

The `blkback`'s original shrinking mechanism returns only pages in the
pool which are not currently be used by `blkback` to the system.  In
other words, the pages that are not mapped with granted pages.  Because
this commit is changing only the shrink limit but still uses the same
freeing mechanism it does not touch pages which are currently mapping
grants.

Once memory pressure is detected, this commit keeps the squeezing limit
for a user-specified time duration.  The duration should be neither too
long nor too short.  If it is too long, the squeezing incurring overhead
can reduce the I/O performance.  If it is too short, `blkback` will not
free enough pages to reduce the memory pressure.  This commit sets the
value as `10 milliseconds` by default because it is a short time in
terms of I/O while it is a long time in terms of memory operations.
Also, as the original shrinking mechanism works for at least every 100
milliseconds, this could be a somewhat reasonable choice.  I also tested
other durations (refer to the below section for more details) and
confirmed that 10 milliseconds is the one that works best with the test.
That said, the proper duration depends on actual configurations and
workloads.  That's why this commit allows users to set the duration as a
module parameter.

Memory Pressure Test
====================

To show how this commit fixes the memory pressure situation well, I
configured a test environment on a xen-running virtualization system.
On the `blkfront` running guest instances, I attach a large number of
network-backed volume devices and induce I/O to those.  Meanwhile, I
measure the number of pages that swapped in (pswpin) and out (pswpout)
on the `blkback` running guest.  The test ran twice, once for the
`blkback` before this commit and once for that after this commit.  As
shown below, this commit has dramatically reduced the memory pressure:

                pswpin  pswpout
    before      76,672  185,799
    after          867    3,967

Optimal Aggressive Shrinking Duration
-------------------------------------

To find a best squeezing duration, I repeated the test with three
different durations (1ms, 10ms, and 100ms).  The results are as below:

    duration    pswpin  pswpout
    1           707     5,095
    10          867     3,967
    100         362     3,348

As expected, the memory pressure decreases as the duration increases,
but the reduction become slow from the `10ms`.  Based on this results, I
chose the default duration as 10ms.

Performance Overhead Test
=========================

This commit could incur I/O performance degradation under severe memory
pressure because the squeezing will require more page allocations per
I/O.  To show the overhead, I artificially made a worst-case squeezing
situation and measured the I/O performance of a `blkfront` running
guest.

For the artificial squeezing, I set the `blkback.max_buffer_pages` using
the `/sys/module/xen_blkback/parameters/max_buffer_pages` file.  In this
test, I set the value to `1024` and `0`.  The `1024` is the default
value.  Setting the value as `0` is same to a situation doing the
squeezing always (worst-case).

If the underlying block device is slow enough, the squeezing overhead
could be hidden.  For the reason, I use a fast block device, namely the
rbd[1]:

    # xl block-attach guest phy:/dev/ram0 xvdb w

For the I/O performance measurement, I run a simple `dd` command 5 times
directly to the device as below and collect the 'MB/s' results.

    $ for i in {1..5}; do dd if=/dev/zero of=/dev/xvdb \
                             bs=4k count=$((256*512)); sync; done

The results are as below.  'max_pgs' represents the value of the
`blkback.max_buffer_pages` parameter.

    max_pgs   Min       Max       Median     Avg    Stddev
    0         417       423       420        419.4  2.5099801
    1024      414       425       416        417.8  4.4384682
    No difference proven at 95.0% confidence

In short, even worst case squeezing on ramdisk based fast block device
makes no visible performance degradation.  Please note that this is just
a very simple and minimal test.  On systems using super-fast block
devices and a special I/O workload, the results might be different.  If
you have any doubt, test on your machine with your workload to find the
optimal squeezing duration for you.

[1] https://www.kernel.org/doc/html/latest/admin-guide/blockdev/ramdisk.html

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-01-29 07:35:49 -06:00
Linus Torvalds
73a0bff205 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull IMA updates from Mimi Zohar:
 "Two new features - measuring certificates and querying IMA for a file
  hash - and three bug fixes:

   - Measuring certificates is like the rest of IMA, based on policy,
     but requires loading a custom policy. Certificates loaded onto a
     keyring, for example during early boot, before a custom policy has
     been loaded, are queued and only processed after loading the custom
     policy.

   - IMA calculates and caches files hashes. Other kernel subsystems,
     and possibly kernel modules, are interested in accessing these
     cached file hashes.

  The bug fixes prevent classifying a file short read (e.g. shutdown) as
  an invalid file signature, add a missing blank when displaying the
  securityfs policy rules containing LSM labels, and, lastly, fix the
  handling of the IMA policy information for unknown LSM labels"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  IMA: Defined delayed workqueue to free the queued keys
  IMA: Call workqueue functions to measure queued keys
  IMA: Define workqueue for early boot key measurements
  IMA: pre-allocate buffer to hold keyrings string
  ima: ima/lsm policy rule loading logic bug fixes
  ima: add the ability to query the cached hash of a given file
  ima: Add a space after printing LSM rules for readability
  IMA: fix measuring asymmetric keys Kconfig
  IMA: Read keyrings= option from the IMA policy
  IMA: Add support to limit measuring keys
  KEYS: Call the IMA hook to measure keys
  IMA: Define an IMA hook to measure keys
  IMA: Add KEY_CHECK func to measure keys
  IMA: Check IMA policy flag
  ima: avoid appraise error for hash calc interrupt
2020-01-28 18:52:09 -08:00
Linus Torvalds
bd2463ac7d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Add WireGuard

 2) Add HE and TWT support to ath11k driver, from John Crispin.

 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.

 4) Add variable window congestion control to TIPC, from Jon Maloy.

 5) Add BCM84881 PHY driver, from Russell King.

 6) Start adding netlink support for ethtool operations, from Michal
    Kubecek.

 7) Add XDP drop and TX action support to ena driver, from Sameeh
    Jubran.

 8) Add new ipv4 route notifications so that mlxsw driver does not have
    to handle identical routes itself. From Ido Schimmel.

 9) Add BPF dynamic program extensions, from Alexei Starovoitov.

10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.

11) Add support for macsec HW offloading, from Antoine Tenart.

12) Add initial support for MPTCP protocol, from Christoph Paasch,
    Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.

13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
    Cherian, and others.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
  net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
  udp: segment looped gso packets correctly
  netem: change mailing list
  qed: FW 8.42.2.0 debug features
  qed: rt init valid initialization changed
  qed: Debug feature: ilt and mdump
  qed: FW 8.42.2.0 Add fw overlay feature
  qed: FW 8.42.2.0 HSI changes
  qed: FW 8.42.2.0 iscsi/fcoe changes
  qed: Add abstraction for different hsi values per chip
  qed: FW 8.42.2.0 Additional ll2 type
  qed: Use dmae to write to widebus registers in fw_funcs
  qed: FW 8.42.2.0 Parser offsets modified
  qed: FW 8.42.2.0 Queue Manager changes
  qed: FW 8.42.2.0 Expose new registers and change windows
  qed: FW 8.42.2.0 Internal ram offsets modifications
  MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
  Documentation: net: octeontx2: Add RVU HW and drivers overview
  octeontx2-pf: ethtool RSS config support
  octeontx2-pf: Add basic ethtool support
  ...
2020-01-28 16:02:33 -08:00
Linus Torvalds
b1dba24731 selinux/stable-5.6 PR 20200127
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Merge tag 'selinux-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux update from Paul Moore:
 "This is one of the bigger SELinux pull requests in recent years with
  28 patches. Everything is passing our test suite and the highlights
  are below:

   - Mark CONFIG_SECURITY_SELINUX_DISABLE as deprecated. We're some time
     away from actually attempting to remove this in the kernel, but the
     only distro we know that still uses it (Fedora) is working on
     moving away from this so we want to at least let people know we are
     planning to remove it.

   - Reorder the SELinux hooks to help prevent bad things when SELinux
     is disabled at runtime. The proper fix is to remove the
     CONFIG_SECURITY_SELINUX_DISABLE functionality (see above) and just
     take care of it at boot time (e.g. "selinux=0").

   - Add SELinux controls for the kernel lockdown functionality,
     introducing a new SELinux class/permissions: "lockdown { integrity
     confidentiality }".

   - Add a SELinux control for move_mount(2) that reuses the "file {
     mounton }" permission.

   - Improvements to the SELinux security label data store lookup
     functions to speed up translations between our internal label
     representations and the visible string labels (both directions).

   - Revisit a previous fix related to SELinux inode auditing and
     permission caching and do it correctly this time.

   - Fix the SELinux access decision cache to cleanup properly on error.
     In some extreme cases this could limit the cache size and result in
     a decrease in performance.

   - Enable SELinux per-file labeling for binderfs.

   - The SELinux initialized and disabled flags were wrapped with
     accessors to ensure they are accessed correctly.

   - Mark several key SELinux structures with __randomize_layout.

   - Changes to the LSM build configuration to only build
     security/lsm_audit.c when needed.

   - Changes to the SELinux build configuration to only build the IB
     object cache when CONFIG_SECURITY_INFINIBAND is enabled.

   - Move a number of single-caller functions into their callers.

   - Documentation fixes (/selinux -> /sys/fs/selinux).

   - A handful of cleanup patches that aren't worth mentioning on their
     own, the individual descriptions have plenty of detail"

* tag 'selinux-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (28 commits)
  selinux: fix regression introduced by move_mount(2) syscall
  selinux: do not allocate ancillary buffer on first load
  selinux: remove redundant allocation and helper functions
  selinux: remove redundant selinux_nlmsg_perm
  selinux: fix wrong buffer types in policydb.c
  selinux: reorder hooks to make runtime disable less broken
  selinux: treat atomic flags more carefully
  selinux: make default_noexec read-only after init
  selinux: move ibpkeys code under CONFIG_SECURITY_INFINIBAND.
  selinux: remove redundant msg_msg_alloc_security
  Documentation,selinux: fix references to old selinuxfs mount point
  selinux: deprecate disabling SELinux and runtime
  selinux: allow per-file labelling for binderfs
  selinuxfs: use scnprintf to get real length for inode
  selinux: remove set but not used variable 'sidtab'
  selinux: ensure the policy has been loaded before reading the sidtab stats
  selinux: ensure we cleanup the internal AVC counters on error in avc_update()
  selinux: randomize layout of key structures
  selinux: clean up selinux_enabled/disabled/enforcing_boot
  selinux: remove unnecessary selinux cred request
  ...
2020-01-27 15:38:15 -08:00
Linus Torvalds
6d277aca48 Power management updates for 5.6-rc1
- Update the ACPI processor driver in order to export
    acpi_processor_evaluate_cst() to the code outside of it, add
    ACPI support to the intel_idle driver based on that and clean
    up that driver somewhat (Rafael Wysocki).
 
  - Add an admin guide document for the intel_idle driver (Rafael
    Wysocki).
 
  - Clean up cpuidle core and drivers, enable compilation testing
    for some of them (Benjamin Gaignard, Krzysztof Kozlowski, Rafael
    Wysocki, Yangtao Li).
 
  - Fix reference counting of OPP (operating performance points) table
    structures (Viresh Kumar).
 
  - Add support for CPR (Core Power Reduction) to the AVS (Adaptive
    Voltage Scaling) subsystem (Niklas Cassel, Colin Ian King,
    YueHaibing).
 
  - Add support for TigerLake Mobile and JasperLake to the Intel RAPL
    power capping driver (Zhang Rui).
 
  - Update cpufreq drivers:
 
    * Add i.MX8MP support to imx-cpufreq-dt (Anson Huang).
 
    * Fix usage of a macro in loongson2_cpufreq (Alexandre Oliva).
 
    * Fix cpufreq policy reference counting issues in s3c and
      brcmstb-avs (chenqiwu).
 
    * Fix ACPI table reference counting issue and HiSilicon quirk
      handling in the CPPC driver (Hanjun Guo).
 
    * Clean up spelling mistake in intel_pstate (Harry Pan).
 
    * Convert the kirkwood and tegra186 drivers to using
      devm_platform_ioremap_resource() (Yangtao Li).
 
  - Update devfreq core:
 
    * Add 'name' sysfs attribute for devfreq devices (Chanwoo Choi).
 
    * Clean up the handing of transition statistics and allow them
      to be reset by writing 0 to the 'trans_stat' devfreq device
      attribute in sysfs (Kamil Konieczny).
 
    * Add 'devfreq_summary' to debugfs (Chanwoo Choi).
 
    * Clean up kerneldoc comments and Kconfig indentation (Krzysztof
      Kozlowski, Randy Dunlap).
 
  - Update devfreq drivers:
 
    * Add dynamic scaling for the imx8m DDR controller and clean up
      imx8m-ddrc (Leonard Crestez, YueHaibing).
 
    * Fix DT node reference counting and nitialization error code path
      in rk3399_dmc and add COMPILE_TEST and HAVE_ARM_SMCCC dependency
      for it (Chanwoo Choi, Yangtao Li).
 
    * Fix DT node reference counting in rockchip-dfi and make it use
      devm_platform_ioremap_resource() (Yangtao Li).
 
    * Fix excessive stack usage in exynos-ppmu (Arnd Bergmann).
 
    * Fix initialization error code paths in exynos-bus (Yangtao Li).
 
    * Clean up exynos-bus and exynos somewhat (Artur Świgoń, Krzysztof
      Kozlowski).
 
  - Add tracepoints for tracking usage_count updates unrelated to
    status changes in PM-runtime (Michał Mirosław).
 
  - Add sysfs attribute to control the "sync on suspend" behavior
    during system-wide suspend (Jonas Meurer).
 
  - Switch system-wide suspend tests over to 64-bit time (Alexandre
    Belloni).
 
  - Make wakeup sources statistics in debugfs cover deleted ones which
    used to be the case some time ago (zhuguangqing).
 
  - Clean up computations carried out during hibernation, update
    messages related to hibernation and fix a spelling mistake in one
    of them (Wen Yang, Luigi Semenzato, Colin Ian King).
 
  - Add mailmap entry for maintainer e-mail address that has not been
    functional for several years (Rafael Wysocki).
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Merge tag 'pm-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add ACPI support to the intel_idle driver along with an admin
  guide document for it, add support for CPR (Core Power Reduction) to
  the AVS (Adaptive Voltage Scaling) subsystem, add new hardware support
  in a few places, add some new sysfs attributes, debugfs files and
  tracepoints, fix bugs and clean up a bunch of things all over.

  Specifics:

   - Update the ACPI processor driver in order to export
     acpi_processor_evaluate_cst() to the code outside of it, add ACPI
     support to the intel_idle driver based on that and clean up that
     driver somewhat (Rafael Wysocki).

   - Add an admin guide document for the intel_idle driver (Rafael
     Wysocki).

   - Clean up cpuidle core and drivers, enable compilation testing for
     some of them (Benjamin Gaignard, Krzysztof Kozlowski, Rafael
     Wysocki, Yangtao Li).

   - Fix reference counting of OPP (operating performance points) table
     structures (Viresh Kumar).

   - Add support for CPR (Core Power Reduction) to the AVS (Adaptive
     Voltage Scaling) subsystem (Niklas Cassel, Colin Ian King,
     YueHaibing).

   - Add support for TigerLake Mobile and JasperLake to the Intel RAPL
     power capping driver (Zhang Rui).

   - Update cpufreq drivers:
      - Add i.MX8MP support to imx-cpufreq-dt (Anson Huang).
      - Fix usage of a macro in loongson2_cpufreq (Alexandre Oliva).
      - Fix cpufreq policy reference counting issues in s3c and
        brcmstb-avs (chenqiwu).
      - Fix ACPI table reference counting issue and HiSilicon quirk
        handling in the CPPC driver (Hanjun Guo).
      - Clean up spelling mistake in intel_pstate (Harry Pan).
      - Convert the kirkwood and tegra186 drivers to using
        devm_platform_ioremap_resource() (Yangtao Li).

   - Update devfreq core:
      - Add 'name' sysfs attribute for devfreq devices (Chanwoo Choi).
      - Clean up the handing of transition statistics and allow them to
        be reset by writing 0 to the 'trans_stat' devfreq device
        attribute in sysfs (Kamil Konieczny).
      - Add 'devfreq_summary' to debugfs (Chanwoo Choi).
      - Clean up kerneldoc comments and Kconfig indentation (Krzysztof
        Kozlowski, Randy Dunlap).

   - Update devfreq drivers:
      - Add dynamic scaling for the imx8m DDR controller and clean up
        imx8m-ddrc (Leonard Crestez, YueHaibing).
      - Fix DT node reference counting and nitialization error code path
        in rk3399_dmc and add COMPILE_TEST and HAVE_ARM_SMCCC dependency
        for it (Chanwoo Choi, Yangtao Li).
      - Fix DT node reference counting in rockchip-dfi and make it use
        devm_platform_ioremap_resource() (Yangtao Li).
      - Fix excessive stack usage in exynos-ppmu (Arnd Bergmann).
      - Fix initialization error code paths in exynos-bus (Yangtao Li).
      - Clean up exynos-bus and exynos somewhat (Artur Świgoń, Krzysztof
        Kozlowski).

   - Add tracepoints for tracking usage_count updates unrelated to
     status changes in PM-runtime (Michał Mirosław).

   - Add sysfs attribute to control the "sync on suspend" behavior
     during system-wide suspend (Jonas Meurer).

   - Switch system-wide suspend tests over to 64-bit time (Alexandre
     Belloni).

   - Make wakeup sources statistics in debugfs cover deleted ones which
     used to be the case some time ago (zhuguangqing).

   - Clean up computations carried out during hibernation, update
     messages related to hibernation and fix a spelling mistake in one
     of them (Wen Yang, Luigi Semenzato, Colin Ian King).

   - Add mailmap entry for maintainer e-mail address that has not been
     functional for several years (Rafael Wysocki)"

* tag 'pm-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
  cpufreq: loongson2_cpufreq: adjust cpufreq uses of LOONGSON_CHIPCFG
  intel_idle: Clean up irtl_2_usec()
  intel_idle: Move 3 functions closer to their callers
  intel_idle: Annotate initialization code and data structures
  intel_idle: Move and clean up intel_idle_cpuidle_devices_uninit()
  intel_idle: Rearrange intel_idle_cpuidle_driver_init()
  intel_idle: Clean up NULL pointer check in intel_idle_init()
  intel_idle: Fold intel_idle_probe() into intel_idle_init()
  intel_idle: Eliminate __setup_broadcast_timer()
  cpuidle: fix cpuidle_find_deepest_state() kerneldoc warnings
  cpuidle: sysfs: fix warnings when compiling with W=1
  cpuidle: coupled: fix warnings when compiling with W=1
  cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount
  PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior
  PM / devfreq: Add debugfs support with devfreq_summary file
  Documentation: admin-guide: PM: Add intel_idle document
  cpuidle: arm: Enable compile testing for some of drivers
  PM-runtime: add tracepoints for usage_count changes
  cpufreq: intel_pstate: fix spelling mistake: "Whethet" -> "Whether"
  PM: hibernate: fix spelling mistake "shapshot" -> "snapshot"
  ...
2020-01-27 11:23:54 -08:00
Linus Torvalds
a5b871c91d dmaengine updates for v5.6-rc1
- Core:
    - Support for dynamic channels
    - Removal of various slave wrappers
    - Make few slave request APIs as private to dmaengine
    - Symlinks between channels and slaves
    - Support for hotplug of controllers
    - Support for metadata_ops for dma_async_tx_descriptor
    - Reporting DMA cached data amount
    - Virtual dma channel locking updates
 
  - New drivers/device/feature support support:
    - Driver for Intel data accelerators
    - Driver for TI K3 UDMA
    - Driver for PLX DMA engine
    - Driver for hisilicon Kunpeng DMA engine
    - Support for eDMA support for QorIQ LS1028A in fsl edma driver
    - Support for cyclic dma in sun4i driver
    - Support for X1830 in JZ4780 driver
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Merge tag 'dmaengine-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This time we have a bunch of core changes to support dynamic channels,
  hotplug of controllers, new apis for metadata ops etc along with new
  drivers for Intel data accelerators, TI K3 UDMA, PLX DMA engine and
  hisilicon Kunpeng DMA engine. Also usual assorted updates to drivers.

  Core:
   - Support for dynamic channels
   - Removal of various slave wrappers
   - Make few slave request APIs as private to dmaengine
   - Symlinks between channels and slaves
   - Support for hotplug of controllers
   - Support for metadata_ops for dma_async_tx_descriptor
   - Reporting DMA cached data amount
   - Virtual dma channel locking updates

  New drivers/device/feature support support:
   - Driver for Intel data accelerators
   - Driver for TI K3 UDMA
   - Driver for PLX DMA engine
   - Driver for hisilicon Kunpeng DMA engine
   - Support for eDMA support for QorIQ LS1028A in fsl edma driver
   - Support for cyclic dma in sun4i driver
   - Support for X1830 in JZ4780 driver"

* tag 'dmaengine-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (62 commits)
  dmaengine: Create symlinks between DMA channels and slaves
  dmaengine: hisilicon: Add Kunpeng DMA engine support
  dmaengine: idxd: add char driver to expose submission portal to userland
  dmaengine: idxd: connect idxd to dmaengine subsystem
  dmaengine: idxd: add descriptor manipulation routines
  dmaengine: idxd: add sysfs ABI for idxd driver
  dmaengine: idxd: add configuration component of driver
  dmaengine: idxd: Init and probe for Intel data accelerators
  dmaengine: add support to dynamic register/unregister of channels
  dmaengine: break out channel registration
  x86/asm: add iosubmit_cmds512() based on MOVDIR64B CPU instruction
  dmaengine: ti: k3-udma: fix spelling mistake "limted" -> "limited"
  dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too"
  dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h
  dmaengine: Remove dma_request_slave_channel_compat() wrapper
  dmaengine: Remove dma_device_satisfies_mask() wrapper
  dt-bindings: fsl-imx-sdma: Add i.MX8MM/i.MX8MN/i.MX8MP compatible string
  dmaengine: zynqmp_dma: fix burst length configuration
  dmaengine: sun4i: Add support for cyclic requests with dedicated DMA
  dmaengine: fsl-qdma: fix duplicated argument to &&
  ...
2020-01-27 10:55:50 -08:00
Linus Torvalds
08c49dc135 platform-drivers-x86 for v5.6-1
* Enable thermal policy for ASUS TUF FX705DY/FX505DY
 * Support left round button on ASUS N56VB
 * Support new Mellanox platforms of basic class VMOD0009 and VMOD0010
 * Intel Comet Lake, Tiger Lake and Elkhart Lake support in the PMC driver
 * Big clean up to Intel PMC core, PMC IPC and SCU IPC drivers
 * Touchscreen support for the PiPO W11 tablet
 
 The following is an automated git shortlog grouped by driver:
 
 asus-nb-wmi:
  -  Support left round button on N56VB
 
 asus-wmi:
  -  Fix keyboard brightness cannot be set to 0
  -  Set throttle thermal policy to default
  -  Support throttle thermal policy
 
 Documentation/ABI:
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Style changes
  -  Add missed attribute for mlxreg-io sysfs interfaces
  -  Fix documentation inconsistency for mlxreg-io sysfs interfaces
 
 GPD pocket fan:
  -  Allow somewhat lower/higher temperature limits
  -  Use default values when wrong modparams are given
 
 intel_atomisp2_pm:
  -  Spelling fixes
  -  Refactor timeout loop
 
 intel_mid_powerbtn:
  -  Take a copy of ddata
 
 intel_pmc_core:
  -  update Comet Lake platform driver
  -  Fix spelling of MHz unit
  -  Fix indentation in function definitions
  -  Put more stuff under #ifdef DEBUG_FS
  -  Respect error code of kstrtou32_from_user()
  -  Add Intel Elkhart Lake support
  -  Add Intel Tiger Lake support
  -  Make debugfs entry for pch_ip_power_gating_status conditional
  -  Create platform dependent bitmap structs
  -  Remove unnecessary assignments
  -  Clean up: Remove comma after the termination line
 
 intel_pmc_ipc:
  -  Switch to use driver->dev_groups
  -  Propagate error from kstrtoul()
  -  Use octal permissions in sysfs attributes
  -  Get rid of unnecessary includes
  -  Drop ipc_data_readb()
  -  Drop intel_pmc_gcr_read() and intel_pmc_gcr_write()
  -  Make intel_pmc_ipc_raw_cmd() static
  -  Make intel_pmc_ipc_simple_command() static
  -  Make intel_pmc_gcr_update() static
 
 intel_scu_ipc:
  -  Reformat kernel-doc comments of exported functions
  -  Drop intel_scu_ipc_raw_command()
  -  Drop intel_scu_ipc_io[read|write][8|16]()
  -  Drop unused macros
  -  Drop unused prototype intel_scu_ipc_fw_update()
  -  Sleeping is fine when polling
  -  Drop intel_scu_ipc_i2c_cntrl()
  -  Remove Lincroft support
  -  Add constants for register offsets
  -  Fix interrupt support
 
 intel_scu_ipcutil:
  -  Remove default y from Kconfig
 
 intel_telemetry_debugfs:
  -  Respect error code of kstrtou32_from_user()
 
 intel_telemetry_pltdrv:
  -  use devm_platform_ioremap_resource()
 
 mlx-platform:
  -  Add support for next generation systems
  -  Add support for new capability register
  -  Add support for new system type
  -  Set system mux configuration based on system type
  -  Add more definitions for system attributes
  -  Cosmetic changes
 
 platform/mellanox:
  -  mlxreg-hotplug: Add support for new capability register
  -  fix potential deadlock in the tmfifo driver
 
 tools/power/x86/intel-speed-select:
  -  Update version
  -  Change the order for clos disable
  -  Fix result display for turbo-freq auto mode
  -  Add support for core-power discovery
  -  Allow additional core-power mailbox commands
  -  Update MAINTAINERS for the intel uncore frequency control
  -  Add support for Uncore frequency control
 
 touchscreen_dmi:
  -  Fix indentation in several places
  -  Add info for the PiPO W11 tablet
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Merge tag 'platform-drivers-x86-v5.6-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - Enable thermal policy for ASUS TUF FX705DY/FX505DY

 - Support left round button on ASUS N56VB

 - Support new Mellanox platforms of basic class VMOD0009 and VMOD0010

 - Intel Comet Lake, Tiger Lake and Elkhart Lake support in the PMC
   driver

 - Big clean-up to Intel PMC core, PMC IPC and SCU IPC drivers

 - Touchscreen support for the PiPO W11 tablet

* tag 'platform-drivers-x86-v5.6-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits)
  platform/x86: intel_pmc_ipc: Switch to use driver->dev_groups
  platform/x86: intel_pmc_ipc: Propagate error from kstrtoul()
  platform/x86: intel_pmc_ipc: Use octal permissions in sysfs attributes
  platform/x86: intel_pmc_ipc: Get rid of unnecessary includes
  platform/x86: intel_pmc_ipc: Drop ipc_data_readb()
  platform/x86: intel_pmc_ipc: Drop intel_pmc_gcr_read() and intel_pmc_gcr_write()
  platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_raw_cmd() static
  platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_simple_command() static
  platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static
  platform/x86: intel_scu_ipc: Reformat kernel-doc comments of exported functions
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command()
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_io[read|write][8|16]()
  platform/x86: intel_scu_ipc: Drop unused macros
  platform/x86: intel_scu_ipc: Drop unused prototype intel_scu_ipc_fw_update()
  platform/x86: intel_scu_ipc: Sleeping is fine when polling
  platform/x86: intel_scu_ipc: Drop intel_scu_ipc_i2c_cntrl()
  platform/x86: intel_scu_ipc: Remove Lincroft support
  platform/x86: intel_scu_ipc: Add constants for register offsets
  platform/x86: intel_scu_ipc: Fix interrupt support
  platform/x86: intel_scu_ipcutil: Remove default y from Kconfig
  ...
2020-01-27 10:42:35 -08:00
Rafael J. Wysocki
c102671af0 Merge branch 'pm-devfreq'
* pm-devfreq: (24 commits)
  PM / devfreq: Add debugfs support with devfreq_summary file
  PM / devfreq: exynos: Rename Exynos to lowercase
  PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR
  PM / devfreq: exynos-bus: Add error log when fail to get devfreq-event
  PM / devfreq: exynos-bus: Disable devfreq-event device when fails
  PM / devfreq: rk3399_dmc: Disable devfreq-event device when fails
  PM / devfreq: imx8m-ddrc: Remove unused defines
  PM / devfreq: exynos-bus: Reduce goto statements and remove unused headers
  PM / devfreq: rk3399_dmc: Add COMPILE_TEST and HAVE_ARM_SMCCC dependency
  PM / devfreq: rockchip-dfi: Convert to devm_platform_ioremap_resource
  PM / devfreq: rk3399_dmc: Add missing of_node_put()
  PM / devfreq: rockchip-dfi: Add missing of_node_put()
  PM / devfreq: Fix multiple kernel-doc warnings
  PM / devfreq: exynos-bus: Extract exynos_bus_profile_init_passive()
  PM / devfreq: exynos-bus: Extract exynos_bus_profile_init()
  PM / devfreq: Move declaration of DEVICE_ATTR_RW(min_freq)
  PM / devfreq: Move statistics to separate struct devfreq_stats
  PM / devfreq: Add clearing transitions stats
  PM / devfreq: Change time stats to 64-bit
  PM / devfreq: Add new name attribute for sysfs
  ...
2020-01-27 11:30:38 +01:00
Rafael J. Wysocki
245224d1cb Merge branches 'pm-cpufreq' and 'pm-sleep'
* pm-cpufreq:
  cpufreq: loongson2_cpufreq: adjust cpufreq uses of LOONGSON_CHIPCFG
  cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount
  cpufreq: intel_pstate: fix spelling mistake: "Whethet" -> "Whether"
  cpufreq: s3c: fix unbalances of cpufreq policy refcount
  cpufreq: imx-cpufreq-dt: Add i.MX8MP support
  cpufreq: Use imx-cpufreq-dt for i.MX8MP's speed grading
  cpufreq: tegra186: convert to devm_platform_ioremap_resource
  cpufreq: kirkwood: convert to devm_platform_ioremap_resource
  cpufreq: CPPC: put ACPI table after using it
  cpufreq : CPPC: Break out if HiSilicon CPPC workaround is matched

* pm-sleep:
  PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior
  PM: hibernate: fix spelling mistake "shapshot" -> "snapshot"
  PM: hibernate: Add more logging on hibernation failure
  PM: hibernate: improve arithmetic division in preallocate_highmem_fraction()
  PM: wakeup: Show statistics for deleted wakeup sources again
  PM: sleep: Switch to rtc_time64_to_tm()/rtc_tm_to_time64()
2020-01-27 11:29:09 +01:00
Rafael J. Wysocki
5b82ba70de Merge branch 'pm-cpuidle'
* pm-cpuidle: (27 commits)
  intel_idle: Clean up irtl_2_usec()
  intel_idle: Move 3 functions closer to their callers
  intel_idle: Annotate initialization code and data structures
  intel_idle: Move and clean up intel_idle_cpuidle_devices_uninit()
  intel_idle: Rearrange intel_idle_cpuidle_driver_init()
  intel_idle: Clean up NULL pointer check in intel_idle_init()
  intel_idle: Fold intel_idle_probe() into intel_idle_init()
  intel_idle: Eliminate __setup_broadcast_timer()
  cpuidle: fix cpuidle_find_deepest_state() kerneldoc warnings
  cpuidle: sysfs: fix warnings when compiling with W=1
  cpuidle: coupled: fix warnings when compiling with W=1
  Documentation: admin-guide: PM: Add intel_idle document
  cpuidle: arm: Enable compile testing for some of drivers
  cpuidle: Drop unused cpuidle_driver_ref/unref() functions
  intel_idle: Use ACPI _CST on server systems
  intel_idle: Add module parameter to prevent ACPI _CST from being used
  intel_idle: Allow ACPI _CST to be used for selected known processors
  cpuidle: Allow idle states to be disabled by default
  intel_idle: Use ACPI _CST for processor models without C-state tables
  intel_idle: Refactor intel_idle_cpuidle_driver_init()
  ...
2020-01-27 11:28:57 +01:00
Peter Chen
880082666c Doc: ABI: add usb charger uevent
When the USB charger is inserted or removed, the users could get
USB charger state and type through the uevent.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/1579145333-1657-2-git-send-email-peter.chen@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-24 09:41:27 +01:00
Jing Lin
b131ad5938 dmaengine: idxd: add sysfs ABI for idxd driver
Add the sysfs ABI information for idxd driver in
Documentation/ABI/stable directory.

Signed-off-by: Jing Lin <jing.lin@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965025170.73301.13428570530450446901.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-24 11:18:45 +05:30
Hridya Valsaraju
fc7100ea2a f2fs: Add f2fs stats to sysfs
Currently f2fs stats are only available from /d/f2fs/status. This patch
adds some of the f2fs stats to sysfs so that they are accessible even
when debugfs is not mounted.

The following sysfs nodes are added:
-/sys/fs/f2fs/<disk>/free_segments
-/sys/fs/f2fs/<disk>/cp_foreground_calls
-/sys/fs/f2fs/<disk>/cp_background_calls
-/sys/fs/f2fs/<disk>/gc_foreground_calls
-/sys/fs/f2fs/<disk>/gc_background_calls
-/sys/fs/f2fs/<disk>/moved_blocks_foreground
-/sys/fs/f2fs/<disk>/moved_blocks_background
-/sys/fs/f2fs/<disk>/avg_vblocks

Signed-off-by: Hridya Valsaraju <hridya@google.com>
[Jaegeuk Kim: allow STAT_FS without DEBUG_FS]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-01-23 09:24:25 -08:00
Rafael J. Wysocki
322e929d19 Merge back new material related to system-wide PM for v5.6. 2020-01-23 16:00:56 +01:00
Hridya Valsaraju
f5fa7c8bb6 f2fs: delete duplicate information on sysfs nodes
This patch merges the sysfs node documentation present in
Documentation/filesystems/f2fs.txt and
Documentation/ABI/testing/sysfs-fs-f2fs
and deletes the duplicate information from
Documentation/filesystems/f2fs.txt. This is to prevent having to update
both files when a new sysfs node is added for f2fs.
The patch also makes minor formatting changes to
Documentation/ABI/testing/sysfs-fs-f2fs.

Signed-off-by: Hridya Valsaraju <hridya@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-01-22 17:14:14 -08:00