1. 05 Oct, 2018 1 commit
  2. 04 Oct, 2018 8 commits
    • Nadav Amit's avatar
      x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops · 494b5168
      Nadav Amit authored
      As described in:
      
        77b0bf55: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs")
      
      GCC's inlining heuristics are broken with common asm() patterns used in
      kernel code, resulting in the effective disabling of inlining.
      
      The workaround is to set an assembly macro and call it from the inline
      assembly block. As a result GCC considers the inline assembly block as
      a single instruction. (Which it isn't, but that's the best we can get.)
      
      In this patch we wrap the paravirt call section tricks in a macro,
      to hide it from GCC.
      
      The effect of the patch is a more aggressive inlining, which also
      causes a size increase of kernel.
      
            text     data     bss      dec     hex  filename
        18147336 10226688 2957312 31331336 1de1408  ./vmlinux before
        18162555 10226288 2957312 31346155 1de4deb  ./vmlinux after (+14819)
      
      The number of static text symbols (non-inlined functions) goes down:
      
        Before: 40053
        After:  39942 (-111)
      
      [ mingo: Rewrote the changelog. ]
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Alok Kataria <akataria@vmware.com>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: virtualization@lists.linux-foundation.org
      Link: http://lkml.kernel.org/r/20181003213100.189959-8-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      494b5168
    • Nadav Amit's avatar
      x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs · f81f8ad5
      Nadav Amit authored
      As described in:
      
        77b0bf55: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs")
      
      GCC's inlining heuristics are broken with common asm() patterns used in
      kernel code, resulting in the effective disabling of inlining.
      
      The workaround is to set an assembly macro and call it from the inline
      assembly block. As a result GCC considers the inline assembly block as
      a single instruction. (Which it isn't, but that's the best we can get.)
      
      This patch increases the kernel size:
      
            text     data     bss      dec     hex  filename
        18146889 10225380 2957312 31329581 1de0d2d  ./vmlinux before
        18147336 10226688 2957312 31331336 1de1408  ./vmlinux after (+1755)
      
      But enables more aggressive inlining (and probably better branch decisions).
      
      The number of static text symbols in vmlinux is much lower:
      
       Before: 40218
       After:  40053 (-165)
      
      The assembly code gets harder to read due to the extra macro layer.
      
      [ mingo: Rewrote the changelog. ]
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/r/20181003213100.189959-7-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      f81f8ad5
    • Nadav Amit's avatar
      x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs · 77f48ec2
      Nadav Amit authored
      As described in:
      
        77b0bf55: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs")
      
      GCC's inlining heuristics are broken with common asm() patterns used in
      kernel code, resulting in the effective disabling of inlining.
      
      The workaround is to set an assembly macro and call it from the inline
      assembly block - i.e. to macrify the affected block.
      
      As a result GCC considers the inline assembly block as a single instruction.
      
      This patch handles the LOCK prefix, allowing more aggresive inlining:
      
            text     data     bss      dec     hex  filename
        18140140 10225284 2957312 31322736 1ddf270  ./vmlinux before
        18146889 10225380 2957312 31329581 1de0d2d  ./vmlinux after (+6845)
      
      This is the reduction in non-inlined functions:
      
        Before: 40286
        After:  40218 (-68)
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/r/20181003213100.189959-6-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      77f48ec2
    • Nadav Amit's avatar
      x86/refcount: Work around GCC inlining bug · 9e1725b4
      Nadav Amit authored
      As described in:
      
        77b0bf55: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs")
      
      GCC's inlining heuristics are broken with common asm() patterns used in
      kernel code, resulting in the effective disabling of inlining.
      
      The workaround is to set an assembly macro and call it from the inline
      assembly block. As a result GCC considers the inline assembly block as
      a single instruction. (Which it isn't, but that's the best we can get.)
      
      This patch allows GCC to inline simple functions such as __get_seccomp_filter().
      
      To no-one's surprise the result is that GCC performs more aggressive (read: correct)
      inlining decisions in these senarios, which reduces the kernel size and presumably
      also speeds it up:
      
            text     data     bss      dec     hex  filename
        18140970 10225412 2957312 31323694 1ddf62e  ./vmlinux before
        18140140 10225284 2957312 31322736 1ddf270  ./vmlinux after (-958)
      
      16 fewer static text symbols:
      
         Before: 40302
          After: 40286 (-16)
      
      these got inlined instead.
      
      Functions such as kref_get(), free_user(), fuse_file_get() now get inlined. Hurray!
      
      [ mingo: Rewrote the changelog. ]
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Jan Beulich <JBeulich@suse.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/r/20181003213100.189959-5-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      9e1725b4
    • Nadav Amit's avatar
      x86/objtool: Use asm macros to work around GCC inlining bugs · c06c4d80
      Nadav Amit authored
      As described in:
      
        77b0bf55: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs")
      
      GCC's inlining heuristics are broken with common asm() patterns used in
      kernel code, resulting in the effective disabling of inlining.
      
      In the case of objtool the resulting borkage can be significant, since all the
      annotations of objtool are discarded during linkage and never inlined,
      yet GCC bogusly considers most functions affected by objtool annotations
      as 'too large'.
      
      The workaround is to set an assembly macro and call it from the inline
      assembly block. As a result GCC considers the inline assembly block as
      a single instruction. (Which it isn't, but that's the best we can get.)
      
      This increases the kernel size slightly:
      
            text     data     bss      dec     hex filename
        18140829 10224724 2957312 31322865 1ddf2f1 ./vmlinux before
        18140970 10225412 2957312 31323694 1ddf62e ./vmlinux after (+829)
      
      The number of static text symbols (i.e. non-inlined functions) is reduced:
      
        Before:  40321
        After:   40302 (-19)
      
      [ mingo: Rewrote the changelog. ]
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Reviewed-by: default avatarJosh Poimboeuf <jpoimboe@redhat.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Christopher Li <sparse@chrisli.org>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-sparse@vger.kernel.org
      Link: http://lkml.kernel.org/r/20181003213100.189959-4-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      c06c4d80
    • Nadav Amit's avatar
      kbuild/Makefile: Prepare for using macros in inline assembly code to work... · 77b0bf55
      Nadav Amit authored
      kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs
      
      Using macros in inline assembly allows us to work around bugs
      in GCC's inlining decisions.
      
      Compile macros.S and use it to assemble all C files.
      Currently only x86 will use it.
      
      Background:
      
      The inlining pass of GCC doesn't include an assembler, so it's not aware
      of basic properties of the generated code, such as its size in bytes,
      or that there are such things as discontiuous blocks of code and data
      due to the newfangled linker feature called 'sections' ...
      
      Instead GCC uses a lazy and fragile heuristic: it does a linear count of
      certain syntactic and whitespace elements in inlined assembly block source
      code, such as a count of new-lines and semicolons (!), as a poor substitute
      for "code size and complexity".
      
      Unsurprisingly this heuristic falls over and breaks its neck whith certain
      common types of kernel code that use inline assembly, such as the frequent
      practice of putting useful information into alternative sections.
      
      As a result of this fresh, 20+ years old GCC bug, GCC's inlining decisions
      are effectively disabled for inlined functions that make use of such asm()
      blocks, because GCC thinks those sections of code are "large" - when in
      reality they are often result in just a very low number of machine
      instructions.
      
      This absolute lack of inlining provess when GCC comes across such asm()
      blocks both increases generated kernel code size and causes performance
      overhead, which is particularly noticeable on paravirt kernels, which make
      frequent use of these inlining facilities in attempt to stay out of the
      way when running on baremetal hardware.
      
      Instead of fixing the compiler we use a workaround: we set an assembly macro
      and call it from the inlined assembly block. As a result GCC considers the
      inline assembly block as a single instruction. (Which it often isn't but I digress.)
      
      This uglifies and bloats the source code - for example just the refcount
      related changes have this impact:
      
       Makefile                 |    9 +++++++--
       arch/x86/Makefile        |    7 +++++++
       arch/x86/kernel/macros.S |    7 +++++++
       scripts/Kbuild.include   |    4 +++-
       scripts/mod/Makefile     |    2 ++
       5 files changed, 26 insertions(+), 3 deletions(-)
      
      Yay readability and maintainability, it's not like assembly code is hard to read
      and maintain ...
      
      We also hope that GCC will eventually get fixed, but we are not holding
      our breath for that. Yet we are optimistic, it might still happen, any decade now.
      
      [ mingo: Wrote new changelog describing the background. ]
      Tested-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Acked-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Michal Marek <michal.lkml@markovi.net>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sam Ravnborg <sam@ravnborg.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-kbuild@vger.kernel.org
      Link: http://lkml.kernel.org/r/20181003213100.189959-3-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      77b0bf55
    • Nadav Amit's avatar
      kbuild/arch/xtensa: Define LINKER_SCRIPT for the linker script · 35e76b99
      Nadav Amit authored
      Define the LINKER_SCRIPT when building the linker script as being done
      in other architectures. This is required, because upcoming Makefile changes
      would otherwise break things.
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Acked-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Chris Zankel <chris@zankel.net>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Michal Marek <michal.lkml@markovi.net>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-xtensa@linux-xtensa.org
      Link: http://lkml.kernel.org/r/20181003213100.189959-2-namit@vmware.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      35e76b99
    • Ingo Molnar's avatar
      c0554d2d
  3. 02 Oct, 2018 5 commits
  4. 01 Oct, 2018 3 commits
  5. 30 Sep, 2018 5 commits
  6. 29 Sep, 2018 12 commits
    • Greg Kroah-Hartman's avatar
      Merge tag 'for-linus-20180929' of git://git.kernel.dk/linux-block · 291d0e5d
      Greg Kroah-Hartman authored
      Jens writes:
        "Block fixes for 4.19-rc6
      
         A set of fixes that should go into this release. This pull request
         contains:
      
         - A fix (hopefully) for the persistent grants for xen-blkfront. A
           previous fix from this series wasn't complete, hence reverted, and
           this one should hopefully be it. (Boris Ostrovsky)
      
         - Fix for an elevator drain warning with SMR devices, which is
           triggered when you switch schedulers (Damien)
      
         - bcache deadlock fix (Guoju Fang)
      
         - Fix for the block unplug tracepoint, which has had the
           timer/explicit flag reverted since 4.11 (Ilya)
      
         - Fix a regression in this series where the blk-mq timeout hook is
           invoked with the RCU read lock held, hence preventing it from
           blocking (Keith)
      
         - NVMe pull from Christoph, with a single multipath fix (Susobhan Dey)"
      
      * tag 'for-linus-20180929' of git://git.kernel.dk/linux-block:
        xen/blkfront: correct purging of persistent grants
        Revert "xen/blkfront: When purging persistent grants, keep them in the buffer"
        blk-mq: I/O and timer unplugs are inverted in blktrace
        bcache: add separate workqueue for journal_write to avoid deadlock
        xen/blkfront: When purging persistent grants, keep them in the buffer
        block: fix deadline elevator drain for zoned block devices
        blk-mq: Allow blocking queue tag iter callbacks
        nvme: properly propagate errors in nvme_mpath_init
      291d0e5d
    • Greg Kroah-Hartman's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e7541773
      Greg Kroah-Hartman authored
      Thomas writes:
        "A single fix for the AMD memory encryption boot code so it does not
         read random garbage instead of the cached encryption bit when a kexec
         kernel is allocated above the 32bit address limit."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Fix kexec booting failure in the SEV bit detection code
      e7541773
    • Greg Kroah-Hartman's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e1ce697d
      Greg Kroah-Hartman authored
      Thomas writes:
        "Three small fixes for clocksource drivers:
         - Proper error handling in the Atmel PIT driver
         - Add CLOCK_SOURCE_SUSPEND_NONSTOP for TI SoCs so suspend works again
         - Fix the next event function for Facebook Backpack-CMM BMC chips so
           usleep(100) doesnt sleep several milliseconds"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource/drivers/timer-atmel-pit: Properly handle error cases
        clocksource/drivers/fttmr010: Fix set_next_event handler
        clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-am43 SoCs
      e1ce697d
    • Greg Kroah-Hartman's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · af17b3aa
      Greg Kroah-Hartman authored
      Thomas writes:
        "A single fix for a missing sanity check when a pinned event is tried
        to be read on the wrong CPU due to a legit event scheduling failure."
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Add sanity check to deal with pinned event failure
      af17b3aa
    • Greg Kroah-Hartman's avatar
      Merge tag 'pm-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 82ec752c
      Greg Kroah-Hartman authored
      Rafael writes:
        "Power management fix for 4.19-rc6
      
         Fix incorrect __init and __exit annotations in the Qualcomm
         Kryo cpufreq driver (Nathan Chancellor)."
      
      * tag 'pm-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: qcom-kryo: Fix section annotations
      82ec752c
    • Nathan Chancellor's avatar
      cpufreq: qcom-kryo: Fix section annotations · d51aea13
      Nathan Chancellor authored
      There is currently a warning when building the Kryo cpufreq driver into
      the kernel image:
      
      WARNING: vmlinux.o(.text+0x8aa424): Section mismatch in reference from
      the function qcom_cpufreq_kryo_probe() to the function
      .init.text:qcom_cpufreq_kryo_get_msm_id()
      The function qcom_cpufreq_kryo_probe() references
      the function __init qcom_cpufreq_kryo_get_msm_id().
      This is often because qcom_cpufreq_kryo_probe lacks a __init
      annotation or the annotation of qcom_cpufreq_kryo_get_msm_id is wrong.
      
      Remove the '__init' annotation from qcom_cpufreq_kryo_get_msm_id
      so that there is no more mismatch warning.
      
      Additionally, Nick noticed that the remove function was marked as
      '__init' when it should really be marked as '__exit'.
      
      Fixes: 46e2856b (cpufreq: Add Kryo CPU scaling driver)
      Fixes: 5ad7346b (cpufreq: kryo: Add module remove and exit)
      Reported-by: default avatarNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: default avatarNathan Chancellor <natechancellor@gmail.com>
      Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Cc: 4.18+ <stable@vger.kernel.org> # 4.18+
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      d51aea13
    • Greg Kroah-Hartman's avatar
      Merge tag 'dma-mapping-4.19-3' of git://git.infradead.org/users/hch/dma-mapping · 7a6878bb
      Greg Kroah-Hartman authored
      Christoph writes:
        "dma mapping fix for 4.19-rc6
      
         fix a missing Kconfig symbol for commits introduced in 4.19-rc"
      
      * tag 'dma-mapping-4.19-3' of git://git.infradead.org/users/hch/dma-mapping:
        dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
      7a6878bb
    • Greg Kroah-Hartman's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · e704966c
      Greg Kroah-Hartman authored
      Dmitry writes:
        "Input updates for v4.19-rc5
      
         Just a few driver fixes"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: uinput - allow for max == min during input_absinfo validation
        Input: elantech - enable middle button of touchpad on ThinkPad P72
        Input: atakbd - fix Atari CapsLock behaviour
        Input: atakbd - fix Atari keymap
        Input: egalax_ts - add system wakeup support
        Input: gpio-keys - fix a documentation index issue
      e704966c
    • Greg Kroah-Hartman's avatar
      Merge tag 'spi-fix-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · 2f19e7a7
      Greg Kroah-Hartman authored
      Mark writes:
        "spi: Fixes for v4.19
      
         Quite a few fixes for the Renesas drivers in here, plus a fix for the
         Tegra driver and some documentation fixes for the recently added
         spi-mem code.  The Tegra fix is relatively large but fairly
         straightforward and mechanical, it runs on probe so it's been
         reasonably well covered in -next testing."
      
      * tag 'spi-fix-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
        spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc header
        spi: spi-mem: Add missing description for data.nbytes field
        spi: rspi: Fix interrupted DMA transfers
        spi: rspi: Fix invalid SPI use during system suspend
        spi: sh-msiof: Fix handling of write value for SISTR register
        spi: sh-msiof: Fix invalid SPI use during system suspend
        spi: gpio: Fix copy-and-paste error
        spi: tegra20-slink: explicitly enable/disable clock
      2f19e7a7
    • Greg Kroah-Hartman's avatar
      Merge tag 'regulator-v4.19-rc5' of... · 8f056611
      Greg Kroah-Hartman authored
      Merge tag 'regulator-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
      
      Mark writes:
        "regulator: Fixes for 4.19
      
         A collection of fairly minor bug fixes here, a couple of driver
         specific ones plus two core fixes.  There's one fix for the new
         suspend state code which fixes some confusion with constant values
         that are supposed to indicate noop operation and another fixing a
         race condition with the creation of sysfs files on new regulators."
      
      * tag 'regulator-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
        regulator: fix crash caused by null driver data
        regulator: Fix 'do-nothing' value for regulators without suspend state
        regulator: da9063: fix DT probing with constraints
        regulator: bd71837: Disable voltage monitoring for LDO3/4
      8f056611
    • Greg Kroah-Hartman's avatar
      Merge tag 'powerpc-4.19-3' of https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · f005de01
      Greg Kroah-Hartman authored
      Michael writes:
        "powerpc fixes for 4.19 #3
      
         A reasonably big batch of fixes due to me being away for a few weeks.
      
         A fix for the TM emulation support on Power9, which could result in
         corrupting the guest r11 when running under KVM.
      
         Two fixes to the TM code which could lead to userspace GPR corruption
         if we take an SLB miss at exactly the wrong time.
      
         Our dynamic patching code had a bug that meant we could patch freed
         __init text, which could lead to corrupting userspace memory.
      
         csum_ipv6_magic() didn't work on little endian platforms since we
         optimised it recently.
      
         A fix for an endian bug when reading a device tree property telling
         us how many storage keys the machine has available.
      
         Fix a crash seen on some configurations of PowerVM when migrating the
         partition from one machine to another.
      
         A fix for a regression in the setup of our CPU to NUMA node mapping
         in KVM guests.
      
         A fix to our selftest Makefiles to make them work since a recent
         change to the shared Makefile logic."
      
      * tag 'powerpc-4.19-3' of https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        selftests/powerpc: Fix Makefiles for headers_install change
        powerpc/numa: Use associativity if VPHN hcall is successful
        powerpc/tm: Avoid possible userspace r1 corruption on reclaim
        powerpc/tm: Fix userspace r13 corruption
        powerpc/pseries: Fix unitialized timer reset on migration
        powerpc/pkeys: Fix reading of ibm, processor-storage-keys property
        powerpc: fix csum_ipv6_magic() on little endian platforms
        powerpc/powernv/ioda2: Reduce upper limit for DMA window size (again)
        powerpc: Avoid code patching freed init sections
        KVM: PPC: Book3S HV: Fix guest r11 corruption with POWER9 TM workarounds
      f005de01
    • Greg Kroah-Hartman's avatar
      Merge tag 'pinctrl-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · 900915f9
      Greg Kroah-Hartman authored
      Linus writes:
        "Pin control fixes for v4.19:
         - Fixes to x86 hardware:
         - AMD interrupt debounce issues
         - Faulty Intel cannonlake register offset
         - Revert pin translation IRQ locking"
      
      * tag 'pinctrl-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
        Revert "pinctrl: intel: Do pin translation when lock IRQ"
        pinctrl: cannonlake: Fix HOSTSW_OWN register offset of H variant
        pinctrl/amd: poll InterruptEnable bits in amd_gpio_irq_set_type
      900915f9
  7. 28 Sep, 2018 6 commits