[PATCH] Generate <asm/asm-offsets.h> and remove identical copies in all architectures
From: Ethan Nelson-Moore <hidden>
Date: 2026-05-19 01:19:59
Also in:
linux-arch, linux-mips, lkml, sparclinux
Subsystem:
arm port, arm64 port (aarch64 architecture), generic include/asm header files, linux for powerpc (32-bit and 64-bit), loongarch, m68k architecture, microblaze architecture, mips, nios2 architecture, openrisc architecture, parisc architecture, qualcomm hexagon architecture, risc-v architecture, sparc + ultrasparc (sparc/sparc64), superh, synopsys arc architecture, tensilica xtensa port (xtensa), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Arnd Bergmann, Madhavan Srinivasan, Michael Ellerman, Huacai Chen, Geert Uytterhoeven, Michal Simek, Thomas Bogendoerfer, Dinh Nguyen, Simon Schuster, Jonas Bonn, Stefan Kristiansson, Stafford Horne, "James E.J. Bottomley", Helge Deller, Brian Cain, Paul Walmsley, Palmer Dabbelt, Albert Ou, "David S. Miller", Andreas Larsson, Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Vineet Gupta, Chris Zankel, Max Filippov, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Every architecture supported by the kernel has a functionally identical copy of <asm/asm-offsets.h> which simply includes <generated/asm-offsets.h>, even though it is also present in asm-generic. Eliminate this unnecessary complexity by adding <asm/asm-offsets.h> to the list of mandatory asm headers, which causes a copy of it that includes <asm-generic/asm-offsets.h> to be generated automatically. Signed-off-by: Ethan Nelson-Moore <redacted> --- arch/arc/include/asm/asm-offsets.h | 6 ------ arch/arm/include/asm/asm-offsets.h | 1 - arch/arm64/include/asm/asm-offsets.h | 1 - arch/hexagon/include/asm/asm-offsets.h | 1 - arch/loongarch/include/asm/asm-offsets.h | 5 ----- arch/m68k/include/asm/asm-offsets.h | 1 - arch/microblaze/include/asm/asm-offsets.h | 1 - arch/mips/include/asm/asm-offsets.h | 1 - arch/nios2/include/asm/asm-offsets.h | 7 ------- arch/openrisc/include/asm/asm-offsets.h | 1 - arch/parisc/include/asm/asm-offsets.h | 1 - arch/powerpc/include/asm/asm-offsets.h | 1 - arch/riscv/include/asm/asm-offsets.h | 1 - arch/sh/include/asm/asm-offsets.h | 2 -- arch/sparc/include/asm/asm-offsets.h | 1 - arch/x86/include/asm/asm-offsets.h | 1 - arch/xtensa/include/asm/asm-offsets.h | 1 - include/asm-generic/Kbuild | 1 + 18 files changed, 1 insertion(+), 33 deletions(-) delete mode 100644 arch/arc/include/asm/asm-offsets.h delete mode 100644 arch/arm/include/asm/asm-offsets.h delete mode 100644 arch/arm64/include/asm/asm-offsets.h delete mode 100644 arch/hexagon/include/asm/asm-offsets.h delete mode 100644 arch/loongarch/include/asm/asm-offsets.h delete mode 100644 arch/m68k/include/asm/asm-offsets.h delete mode 100644 arch/microblaze/include/asm/asm-offsets.h delete mode 100644 arch/mips/include/asm/asm-offsets.h delete mode 100644 arch/nios2/include/asm/asm-offsets.h delete mode 100644 arch/openrisc/include/asm/asm-offsets.h delete mode 100644 arch/parisc/include/asm/asm-offsets.h delete mode 100644 arch/powerpc/include/asm/asm-offsets.h delete mode 100644 arch/riscv/include/asm/asm-offsets.h delete mode 100644 arch/sh/include/asm/asm-offsets.h delete mode 100644 arch/sparc/include/asm/asm-offsets.h delete mode 100644 arch/x86/include/asm/asm-offsets.h delete mode 100644 arch/xtensa/include/asm/asm-offsets.h
diff --git a/arch/arc/include/asm/asm-offsets.h b/arch/arc/include/asm/asm-offsets.h
deleted file mode 100644
index 32a1d3d518dc..000000000000
--- a/arch/arc/include/asm/asm-offsets.h
+++ /dev/null@@ -1,6 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - */ - -#include <generated/asm-offsets.h>
diff --git a/arch/arm/include/asm/asm-offsets.h b/arch/arm/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/arm/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/arm64/include/asm/asm-offsets.h b/arch/arm64/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/arm64/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/hexagon/include/asm/asm-offsets.h b/arch/hexagon/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/hexagon/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/loongarch/include/asm/asm-offsets.h b/arch/loongarch/include/asm/asm-offsets.h
deleted file mode 100644
index d9ad88d293e7..000000000000
--- a/arch/loongarch/include/asm/asm-offsets.h
+++ /dev/null@@ -1,5 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2020-2022 Loongson Technology Corporation Limited - */ -#include <generated/asm-offsets.h>
diff --git a/arch/m68k/include/asm/asm-offsets.h b/arch/m68k/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/m68k/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/microblaze/include/asm/asm-offsets.h b/arch/microblaze/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/microblaze/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/mips/include/asm/asm-offsets.h b/arch/mips/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/mips/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/nios2/include/asm/asm-offsets.h b/arch/nios2/include/asm/asm-offsets.h
deleted file mode 100644
index e51465213b53..000000000000
--- a/arch/nios2/include/asm/asm-offsets.h
+++ /dev/null@@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> - * Copyright (C) 2009 Thomas Chou <thomas@wytron.com.tw> - */ - -#include <generated/asm-offsets.h>
diff --git a/arch/openrisc/include/asm/asm-offsets.h b/arch/openrisc/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/openrisc/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/parisc/include/asm/asm-offsets.h b/arch/parisc/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/parisc/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/powerpc/include/asm/asm-offsets.h b/arch/powerpc/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/powerpc/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/riscv/include/asm/asm-offsets.h b/arch/riscv/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/riscv/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/sh/include/asm/asm-offsets.h b/arch/sh/include/asm/asm-offsets.h
deleted file mode 100644
index 9f8535716392..000000000000
--- a/arch/sh/include/asm/asm-offsets.h
+++ /dev/null@@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include <generated/asm-offsets.h>
diff --git a/arch/sparc/include/asm/asm-offsets.h b/arch/sparc/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/sparc/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/x86/include/asm/asm-offsets.h b/arch/x86/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/x86/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/arch/xtensa/include/asm/asm-offsets.h b/arch/xtensa/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/xtensa/include/asm/asm-offsets.h
+++ /dev/null@@ -1 +0,0 @@ -#include <generated/asm-offsets.h>
diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild
index 2c53a1e0b760..9879bba63a38 100644
--- a/include/asm-generic/Kbuild
+++ b/include/asm-generic/Kbuild@@ -6,6 +6,7 @@ mandatory-y += atomic.h mandatory-y += archrandom.h +mandatory-y += asm-offsets.h mandatory-y += barrier.h mandatory-y += bitops.h mandatory-y += bug.h
--
2.43.0