linux-toradex.git/arch/sh/kernel/cpu/sh4, branch master

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using

    git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook

sh: Remove unused SH4-202 support

2023-10-25T14:49:58+00:00

This early prototype of the SH4 CPU was only used in the "microdev" board
that is now removed, so all of the SH4-202 supoprt can also be removed.

Signed-off-by: Arnd Bergmann 
Reviewed-by: John Paul Adrian Glaubitz 
Link: https://lore.kernel.org/r/20230914155523.3839811-2-arnd@kernel.org
Signed-off-by: John Paul Adrian Glaubitz

sh: sq: Use the bitmap API when applicable

2023-04-21T10:38:23+00:00

Using the bitmap API is less verbose than hand writing it.
It also improves the semantic.

Signed-off-by: Christophe JAILLET 
Reviewed-by: Geert Uytterhoeven 
Reviewed-by: John Paul Adrian Glaubitz 
Link: https://lore.kernel.org/r/a51e9f32c19a007f4922943282cb12c89064440d.1681671848.git.christophe.jaillet@wanadoo.fr
Signed-off-by: John Paul Adrian Glaubitz

sh: sq: Fix incorrect element size for allocating bitmap buffer

2023-04-19T13:55:30+00:00

The Store Queue code allocates a bitmap buffer with the size of
multiple of sizeof(long) in sq_api_init(). While the buffer size
is calculated correctly, the code uses the wrong element size to
allocate the buffer which results in the allocated bitmap buffer
being too small.

Fix this by allocating the buffer with kcalloc() with element size
sizeof(long) instead of kzalloc() whose elements size defaults to
sizeof(char).

Fixes: d7c30c682a27 ("sh: Store Queue API rework.")
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: John Paul Adrian Glaubitz 
Link: https://lore.kernel.org/r/20230419114854.528677-1-glaubitz@physik.fu-berlin.de

sh: mm: set VM_IOREMAP flag to the vmalloc area

2023-02-10T00:51:43+00:00

Currently, for vmalloc areas with flag VM_IOREMAP set, except of the
specific alignment clamping in __get_vm_area_node(), they will be

1) Shown as ioremap in /proc/vmallocinfo;

2) Ignored by /proc/kcore reading via vread()

So for the ioremap in __sq_remap() of sh, we should set VM_IOREMAP in flag
to make it handled correctly as above.

Link: https://lkml.kernel.org/r/20230206084020.174506-8-bhe@redhat.com
Signed-off-by: Baoquan He 
Reviewed-by: Lorenzo Stoakes 
Reviewed-by: Uladzislau Rezki (Sony) 
Cc: Dan Carpenter 
Cc: Stephen Brennan 
Signed-off-by: Andrew Morton

sh: sq: use default_groups in kobj_type

2022-01-05T18:11:52+00:00

There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the sh sq sysfs code to use default_groups field which has
been the preferred way since aa30f47cf666 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.

Cc: Yoshinori Sato 
Cc: Rich Felker 
Cc: linux-sh@vger.kernel.org
Tested-by: Rob Landley 
Link: https://lore.kernel.org/r/20220104162240.1309639-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman

mm: remove __get_vm_area

2020-06-02T17:59:10+00:00

Switch the two remaining callers to use __get_vm_area_caller instead.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Acked-by: Peter Zijlstra (Intel) 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Vetter 
Cc: David Airlie 
Cc: Gao Xiang 
Cc: Greg Kroah-Hartman 
Cc: Haiyang Zhang 
Cc: Johannes Weiner 
Cc: "K. Y. Srinivasan" 
Cc: Laura Abbott 
Cc: Mark Rutland 
Cc: Michael Kelley 
Cc: Minchan Kim 
Cc: Nitin Gupta 
Cc: Robin Murphy 
Cc: Sakari Ailus 
Cc: Stephen Hemminger 
Cc: Sumit Semwal 
Cc: Wei Liu 
Cc: Benjamin Herrenschmidt 
Cc: Catalin Marinas 
Cc: Heiko Carstens 
Cc: Paul Mackerras 
Cc: Vasily Gorbik 
Cc: Will Deacon 
Link: http://lkml.kernel.org/r/20200414131348.444715-9-hch@lst.de
Signed-off-by: Linus Torvalds

sh: add the sh_ prefix to early platform symbols

2019-10-07T11:50:48+00:00

Old early platform device support is now sh-specific. Before moving on
to implementing new early platform framework based on real platform
devices, prefix all early platform symbols with 'sh_'.

Signed-off-by: Bartosz Golaszewski 
Cc: Rich Felker 
Link: https://lore.kernel.org/r/20191003092913.10731-3-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman

drivers: move the early platform device support to arch/sh

2019-10-07T11:50:47+00:00

SuperH is the only user of the current implementation of early platform
device support. We want to introduce a more robust approach to early
probing. As the first step - move all the current early platform code
to arch/sh.

In order not to export internal drivers/base functions to arch code for
this temporary solution - copy the two needed routines for driver
matching from drivers/base/platform.c to arch/sh/drivers/platform_early.c.

Also: call early_platform_cleanup() from subsys_initcall() so that it's
called after all early devices are probed.

Signed-off-by: Bartosz Golaszewski 
Cc: Rich Felker 
Link: https://lore.kernel.org/r/20191003092913.10731-2-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman