+ kernelh-drop-stack_magic-macro.patch added to mm-nonmm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

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The patch titled
     Subject: kernel.h: drop STACK_MAGIC macro
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     kernelh-drop-stack_magic-macro.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kernelh-drop-stack_magic-macro.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Yury Norov (NVIDIA)" <yury.norov@gmail.com>
Subject: kernel.h: drop STACK_MAGIC macro
Date: Fri, 5 Dec 2025 12:52:32 -0500

Patch series "Unload linux/kernel.h", v3.

kernel.h contains declarations that can be placed better.


This patch (of 4):

The macro was introduced in 1994, v1.0.4, for stacks protection.  Since
that, people found better ways to protect stacks, and now the macro is
only used by i915 selftests.  Move it to a local header and drop from the
kernel.h.

Link: https://lkml.kernel.org/r/20251205175237.242022-1-yury.norov@gmail.com
Link: https://lkml.kernel.org/r/20251205175237.242022-2-yury.norov@gmail.com
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Petr Pavlu <petr.pavlu@suse.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/gpu/drm/i915/gt/selftest_ring_submission.c |    1 +
 drivers/gpu/drm/i915/i915_selftest.h               |    2 ++
 include/linux/kernel.h                             |    2 --
 3 files changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c~kernelh-drop-stack_magic-macro
+++ a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
@@ -3,6 +3,7 @@
  * Copyright © 2020 Intel Corporation
  */
 
+#include "i915_selftest.h"
 #include "intel_engine_pm.h"
 #include "selftests/igt_flush_test.h"
 
--- a/drivers/gpu/drm/i915/i915_selftest.h~kernelh-drop-stack_magic-macro
+++ a/drivers/gpu/drm/i915/i915_selftest.h
@@ -26,6 +26,8 @@
 
 #include <linux/types.h>
 
+#define STACK_MAGIC	0xdeadbeef
+
 struct pci_dev;
 struct drm_i915_private;
 
--- a/include/linux/kernel.h~kernelh-drop-stack_magic-macro
+++ a/include/linux/kernel.h
@@ -39,8 +39,6 @@
 
 #include <uapi/linux/kernel.h>
 
-#define STACK_MAGIC	0xdeadbeef
-
 struct completion;
 struct user;
 
_

Patches currently in -mm which might be from yury.norov@gmail.com are

kernelh-drop-stack_magic-macro.patch
moduleparam-include-required-headers-explicitly.patch
kernelh-move-verify_octal_permissions-to-sysfsh.patch
tracing-move-tracing-declarations-from-kernelh-to-a-dedicated-header.patch