linux-toradex.git/arch/m68k, branch v4.2.7

m68k: Define asmlinkage_protect

2015-10-22T21:49:32+00:00

commit 8474ba74193d302e8340dddd1e16c85cc4b98caf upstream.

Make sure the compiler does not modify arguments of syscall functions.
This can happen if the compiler generates a tailcall to another
function.  For example, without asmlinkage_protect sys_openat is compiled
into this function:

sys_openat:
	clr.l %d0
	move.w 18(%sp),%d0
	move.l %d0,16(%sp)
	jbra do_sys_open

Note how the fourth argument is modified in place, modifying the register
%d4 that gets restored from this stack slot when the function returns to
user-space.  The caller may expect the register to be unmodified across
system calls.

Signed-off-by: Andreas Schwab 
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

mm: clean up per architecture MM hook header files

2015-07-17T23:39:53+00:00

Commit 2ae416b142b6 ("mm: new mm hook framework") introduced an empty
header file (mm-arch-hooks.h) for every architecture, even those which
doesn't need to define mm hooks.

As suggested by Geert Uytterhoeven, this could be cleaned through the use
of a generic header file included via each per architecture
asm/include/Kbuild file.

The PowerPC architecture is not impacted here since this architecture has
to defined the arch_remap MM hook.

Signed-off-by: Laurent Dufour 
Suggested-by: Geert Uytterhoeven 
Acked-by: Geert Uytterhoeven 
Acked-by: Vineet Gupta 
Cc: Oleg Nesterov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

m68k: enable PCI support for m5475evb defconfig

2015-07-12T23:34:40+00:00

The ColdFire M5475 on the m5475evb board supports a PCI bus, lets
enable it for the defconfig to get better build and test coverage.

Signed-off-by: Greg Ungerer

m68k: fix io functions for ColdFire/MMU/PCI case

2015-07-12T23:34:40+00:00

The inb/outb/... family of IO methods end up being multiply defined when
building PCI support for the ColdFire. Compiling gives this:

  CC      init/main.o
In file included from ./arch/m68k/include/asm/io.h:4:0,
                 from include/linux/bio.h:30,
                 from include/linux/blkdev.h:18,
                 from init/main.c:75:
./arch/m68k/include/asm/io_mm.h:420:0: warning: "inb" redefined
./arch/m68k/include/asm/io_mm.h:108:0: note: this is the location of the previous definition
...

The ColdFire/PCI case defines its own IO access methods, so no others
should be defined or used in this case. Conditionally disable other
definitions that clash with it.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5475evb

2015-07-12T23:34:40+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5407c3

2015-07-12T23:34:40+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5307c3

2015-07-12T23:34:40+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5275evb

2015-07-12T23:34:39+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5272c3

2015-07-12T23:34:39+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer

m68knommu: update defconfig for ColdFire m5249evb

2015-07-12T23:34:39+00:00

No change to active configuration settings, updated to match current
Kconfigs only.

Signed-off-by: Greg Ungerer