linux.git/arch/powerpc/kernel, branch v5.2-rc2

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61

2019-05-24T15:36:45+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  675 mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Michael Ellerman  (powerpc)
Reviewed-by: Richard Fontana 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier for missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'akpm' (patches from Andrew)

2019-05-19T19:15:32+00:00

Merge yet more updates from Andrew Morton:
 "A few final bits:

   - large changes to vmalloc, yielding large performance benefits

   - tweak the console-flush-on-panic code

   - a few fixes"

* emailed patches from Andrew Morton :
  panic: add an option to replay all the printk message in buffer
  initramfs: don't free a non-existent initrd
  fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
  mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock
  mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro
  mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro
  mm/vmalloc.c: keep track of free blocks for vmap allocation

Merge tag 'powerpc-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2019-05-19T17:10:15+00:00

Pull powerpc fixes from Michael Ellerman:
 "One fix going back to stable, for a bug on 32-bit introduced when we
  added support for THREAD_INFO_IN_TASK.

  A fix for a typo in a recent rework of our hugetlb code that leads to
  crashes on 64-bit when using hugetlbfs with a 4K PAGE_SIZE.

  Two fixes for our recent rework of the address layout on 64-bit hash
  CPUs, both only triggered when userspace tries to access addresses
  outside the user or kernel address ranges.

  Finally a fix for a recently introduced double free in an error path
  in our cacheinfo code.

  Thanks to: Aneesh Kumar K.V, Christophe Leroy, Sachin Sant, Tobin C.
  Harding"

* tag 'powerpc-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/cacheinfo: Remove double free
  powerpc/mm/hash: Fix get_region_id() for invalid addresses
  powerpc/mm: Drop VM_BUG_ON in get_region_id()
  powerpc/mm: Fix crashes with hugepages & 4K pages
  powerpc/32s: fix flush_hash_pages() on SMP

panic: add an option to replay all the printk message in buffer

2019-05-18T22:52:26+00:00

Currently on panic, kernel will lower the loglevel and print out pending
printk msg only with console_flush_on_panic().

Add an option for users to configure the "panic_print" to replay all
dmesg in buffer, some of which they may have never seen due to the
loglevel setting, which will help panic debugging .

[feng.tang@intel.com: keep the original console_flush_on_panic() inside panic()]
  Link: http://lkml.kernel.org/r/1556199137-14163-1-git-send-email-feng.tang@intel.com
[feng.tang@intel.com: use logbuf lock to protect the console log index]
  Link: http://lkml.kernel.org/r/1556269868-22654-1-git-send-email-feng.tang@intel.com
Link: http://lkml.kernel.org/r/1556095872-36838-1-git-send-email-feng.tang@intel.com
Signed-off-by: Feng Tang 
Reviewed-by: Petr Mladek 
Cc: Aaro Koskinen 
Cc: Petr Mladek 
Cc: Steven Rostedt 
Cc: Sergey Senozhatsky 
Cc: Kees Cook 
Cc: Borislav Petkov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2019-05-17T16:46:31+00:00

Pull more vfs mount updates from Al Viro:
 "Propagation of new syscalls to other architectures + cosmetic change
  from Christian (fscontext didn't follow the convention for anon inode
  names)"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]
  uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2]
  uapi, fsopen: use square brackets around "fscontext" [ver #2]

powerpc/cacheinfo: Remove double free

2019-05-17T13:28:00+00:00

kfree() after kobject_put(). Who ever wrote this was on crack.

Fixes: 7e8039795a80 ("powerpc/cacheinfo: Fix kobject memleak")
Signed-off-by: Tobin C. Harding 
Signed-off-by: Michael Ellerman

uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]

2019-05-16T16:23:45+00:00

Wire up the mount API syscalls on non-x86 arches.

Reported-by: Arnd Bergmann 
Signed-off-by: David Howells 
Reviewed-by: Arnd Bergmann 
Signed-off-by: Al Viro

powerpc: replace CONFIG_DEBUG_KERNEL with CONFIG_DEBUG_MISC

2019-05-15T02:52:50+00:00

CONFIG_DEBUG_KERNEL should not impact code generation.  Use the newly
defined CONFIG_DEBUG_MISC instead to keep the current code.

Link: http://lkml.kernel.org/r/20190413224438.10802-3-okaya@kernel.org
Signed-off-by: Sinan Kaya 
Reviewed-by: Josh Triplett 
Reviewed-by: Kees Cook 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Michael Ellerman 
Cc: Christophe Leroy 
Cc: Anders Roxell 
Cc:  Chris Zankel 
Cc: "David S. Miller" 
Cc: Florian Westphal 
Cc: Greg Kroah-Hartman 
Cc: James Hogan 
Cc: Jozsef Kadlecsik 
Cc: Max Filippov 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Pablo Neira Ayuso 
Cc: Paul Burton 
Cc: Ralf Baechle 
Cc: Thomas Bogendoerfer 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

powerpc/prom_init: mark prom_getprop() and prom_getproplen() as __init

2019-05-15T02:52:48+00:00

This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
place.  We need to eliminate potential issues beforehand.

If it is enabled for powerpc, the following modpost warnings are
reported:

  WARNING: vmlinux.o(.text.unlikely+0x20): Section mismatch in reference from the function .prom_getprop() to the function .init.text:.call_prom()
  The function .prom_getprop() references the function __init .call_prom().
  This is often because .prom_getprop lacks a __init annotation or the annotation of .call_prom is wrong.

  WARNING: vmlinux.o(.text.unlikely+0x3c): Section mismatch in reference from the function .prom_getproplen() to the function .init.text:.call_prom()
  The function .prom_getproplen() references the function __init .call_prom().
  This is often because .prom_getproplen lacks a __init annotation or the annotation of .call_prom is wrong.

Link: http://lkml.kernel.org/r/20190423034959.13525-9-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada 
Cc: Arnd Bergmann 
Cc: Benjamin Herrenschmidt 
Cc: Boris Brezillon 
Cc: Borislav Petkov 
Cc: Brian Norris 
Cc: Christophe Leroy 
Cc: David Woodhouse 
Cc: Heiko Carstens 
Cc: "H. Peter Anvin" 
Cc: Ingo Molnar 
Cc: Marek Vasut 
Cc: Mark Rutland 
Cc: Mathieu Malaterre 
Cc: Miquel Raynal 
Cc: Paul Mackerras 
Cc: Ralf Baechle 
Cc: Richard Weinberger 
Cc: Russell King 
Cc: Stefan Agner 
Cc: Thomas Gleixner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds