[ Upstream commit f813ec9e84b4d0ca81ec1da94ab07bfb4a29266c ]

Fix missing call to set_node_dbginfo() for new devres nodes created by
devm_krealloc().

Fixes: f82485722e5d ("devres: provide devm_krealloc()")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260202235210.55176-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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 <kees@kernel.org>

Remove unused devm_free_percpu().

By the way, it was never used in the drivers/ from day 1.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251111145046.997309-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Provide a function similar to devm_strdup_const() but for copying blocks
of memory that are likely to be placed in .rodata.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Immutable tag for the driver core tree to pull from

devres: Move devm_*_action*() APIs to devres.h
devres: Add devm_is_action_added() helper

* tag 'gpiod-devm-is-action-added-for-v6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  devres: Add devm_is_action_added() helper
  devres: Move devm_*_action*() APIs to devres.h

In some code we would like to know if the action in device managed resources
was added by devm_add_action() family of calls. Introduce a helper for that.

Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250220162238.2738038-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

devm_kstrdup() logic pretty much reflects devm_kmemdup() for strings,
so just reuse it.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Link: https://lore.kernel.org/r/20250409105432.1852355-1-raag.jadav@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Sync to fix conlicts between drm-xe-next and drm-intel-next.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

It returns the last open group, not the last group.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250222001051.3012936-3-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

When releasing a device, if the release action causes a group to be
released, a warning is emitted because it can't find the group. This
happens because devres_release_all() moves the entire list to a todo
list and also move the group markers. Considering r* normal resource
nodes and g1 a group resource node:

		    g1 -----------.
		    v		  v
	r1 -> r2 -> g1[0] -> r3-> g[1] -> r4

After devres_release_all(), dev->devres_head becomes empty and the todo
list it iterates on becomes:

			       g1
			       v
	r1 -> r2 -> r3-> r4 -> g1[0]

When a call to component_del() is made and takes down the aggregate
device, a warning like this happen:

	RIP: 0010:devres_release_group+0x362/0x530
	...
	Call Trace:
	 <TASK>
	 component_unbind+0x156/0x380
	 component_unbind_all+0x1d0/0x270
	 mei_component_master_unbind+0x28/0x80 [mei_hdcp]
	 take_down_aggregate_device+0xc1/0x160
	 component_del+0x1c6/0x3e0
	 intel_hdcp_component_fini+0xf1/0x170 [xe]
	 xe_display_fini+0x1e/0x40 [xe]

Because the devres group corresponding to the hdcp component cannot be
found. Just ignore this corner case: if the dev->devres_head is empty
and the caller is trying to remove a group, it's likely in the process
of device cleanup so just ignore it instead of warning.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250222001051.3012936-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>