linux-toradex.git/arch/h8300/kernel, branch v5.0

Remove 'type' argument from access_ok() function

2019-01-04T02:57:57+00:00

Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds

kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops

2018-12-30T08:33:06+00:00

checkpatch.pl reports the following:

  WARNING: struct kgdb_arch should normally be const
  #28: FILE: arch/mips/kernel/kgdb.c:397:
  +struct kgdb_arch arch_kgdb_ops = {

This report makes sense, as all other ops struct, this
one should also be const. This patch does the change.

Cc: Vineet Gupta 
Cc: Russell King 
Cc: Catalin Marinas 
Cc: Will Deacon 
Cc: Yoshinori Sato 
Cc: Richard Kuo 
Cc: Michal Simek 
Cc: Ralf Baechle 
Cc: Paul Burton 
Cc: James Hogan 
Cc: Ley Foon Tan 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Michael Ellerman 
Cc: Rich Felker 
Cc: "David S. Miller" 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: Borislav Petkov 
Cc: x86@kernel.org
Acked-by: Daniel Thompson 
Acked-by: Paul Burton 
Signed-off-by: Christophe Leroy 
Acked-by: Borislav Petkov 
Acked-by: Michael Ellerman  (powerpc)
Signed-off-by: Daniel Thompson

mm: remove include/linux/bootmem.h

2018-10-31T15:54:16+00:00

Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.

The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include 

@@
@@
- #include 
+ #include 

[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
  Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport 
Signed-off-by: Stephen Rothwell 
Acked-by: Michal Hocko 
Cc: Catalin Marinas 
Cc: Chris Zankel 
Cc: "David S. Miller" 
Cc: Geert Uytterhoeven 
Cc: Greentime Hu 
Cc: Greg Kroah-Hartman 
Cc: Guan Xuetao 
Cc: Ingo Molnar 
Cc: "James E.J. Bottomley" 
Cc: Jonas Bonn 
Cc: Jonathan Corbet 
Cc: Ley Foon Tan 
Cc: Mark Salter 
Cc: Martin Schwidefsky 
Cc: Matt Turner 
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Palmer Dabbelt 
Cc: Paul Burton 
Cc: Richard Kuo 
Cc: Richard Weinberger 
Cc: Rich Felker 
Cc: Russell King 
Cc: Serge Semin 
Cc: Thomas Gleixner 
Cc: Tony Luck 
Cc: Vineet Gupta 
Cc: Yoshinori Sato 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vmlinux.lds.h: Move LSM_TABLE into INIT_DATA

2018-10-11T03:40:21+00:00

Since the struct lsm_info table is not an initcall, we can just move it
into INIT_DATA like all the other tables.

Signed-off-by: Kees Cook 
Reviewed-by: Casey Schaufler 
Reviewed-by: John Johansen 
Reviewed-by: James Morris 
Signed-off-by: James Morris

arch/h8300: eliminate kgbd.c warning

2018-08-22T10:14:22+00:00

Drop the "const" qualifier from arch_kgdb_ops to eliminate the gcc
warning (gcc version is 8.1.0).

arch/h8300/kernel/kgdb.c:132:24: error: conflicting type qualifiers for 'arch_kgdb_ops'
 const struct kgdb_arch arch_kgdb_ops = {
In file included from ../arch/h8300/kernel/kgdb.c:12:
../include/linux/kgdb.h:284:26: note: previous declaration of 'arch_kgdb_ops' was here
 extern struct kgdb_arch  arch_kgdb_ops;

Signed-off-by: Randy Dunlap 
Cc: Yoshinori Sato 
Cc: uclinux-h8-devel@lists.sourceforge.jp
Signed-off-by: Yoshinori Sato

h8300: remove unnecessary of_platform_populate call

2018-08-22T10:14:20+00:00

The DT core will call of_platform_populate, so it is not necessary for
arch specific code to call it unless there are custom match entries,
auxdata or parent device. Neither of those apply here, so remove the call.

Cc: Yoshinori Sato 
Cc: uclinux-h8-devel@lists.sourceforge.jp
Signed-off-by: Rob Herring 
Signed-off-by: Yoshinori Sato

h8300: switch to NO_BOOTMEM

2018-08-22T10:14:18+00:00

Commit 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc")
inadvertently switched the DT unflattening allocations from memblock to
bootmem which doesn't work because the unflattening happens before
bootmem is initialized. Swapping the order of bootmem init and
unflattening could also fix this, but removing bootmem is desired. So
enable NO_BOOTMEM on h8300 like other architectures have done.

Fixes: 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc")
Cc: Yoshinori Sato 
Cc: uclinux-h8-devel@lists.sourceforge.jp
Signed-off-by: Rob Herring 
Signed-off-by: Yoshinori Sato

h8300: gcc-8.1 fix

2018-08-22T10:14:18+00:00

Since gcc 8.1 does not generate an assignment statement to er 0,
we had to explicitly write it.

Signed-off-by: Yoshinori Sato

h8300: use dma-direct

2018-01-15T08:35:17+00:00

Replace the bare-bones h8300 direct dma mapping implementation with
the fully featured generic dma-direct one.

Signed-off-by: Christoph Hellwig

dma-mapping: clear harmful GFP_* flags in common code

2018-01-15T08:34:55+00:00

Lift the code from x86 so that we behave consistently.  In the future we
should probably warn if any of these is set.

Signed-off-by: Christoph Hellwig 
Acked-by: Jesper Nilsson 
Acked-by: Geert Uytterhoeven  [m68k]