The patch titled
Subject: asm-generic: introduce text-patching.h
has been added to the -mm mm-unstable branch. Its filename is
asm-generic-introduce-text-patchingh.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/asm-generic-introduce-text-patchingh.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
Subject: asm-generic: introduce text-patching.h
Date: Wed, 9 Oct 2024 21:08:11 +0300
Several architectures support text patching, but they name the header
files that declare patching functions differently.
Make all such headers consistently named text-patching.h and add an empty
header in asm-generic for architectures that do not support text patching.
Link: https://lkml.kernel.org/r/20241009180816.83591-4-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Brian Cain <bcain@xxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Guo Ren <guoren@xxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Cc: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Song Liu <song@xxxxxxxxxx>
Cc: Stafford Horne <shorne@xxxxxxxxx>
Cc: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Cc: Vineet Gupta <vgupta@xxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/include/asm/Kbuild | 1
arch/arc/include/asm/Kbuild | 1
arch/arm/include/asm/patch.h | 18 -
arch/arm/include/asm/text-patching.h | 18 +
arch/arm/kernel/ftrace.c | 2
arch/arm/kernel/jump_label.c | 2
arch/arm/kernel/kgdb.c | 2
arch/arm/kernel/patch.c | 2
arch/arm/probes/kprobes/core.c | 2
arch/arm/probes/kprobes/opt-arm.c | 2
arch/arm64/include/asm/patching.h | 17 -
arch/arm64/include/asm/text-patching.h | 17 +
arch/arm64/kernel/ftrace.c | 2
arch/arm64/kernel/jump_label.c | 2
arch/arm64/kernel/kgdb.c | 2
arch/arm64/kernel/patching.c | 2
arch/arm64/kernel/probes/kprobes.c | 2
arch/arm64/kernel/traps.c | 2
arch/arm64/net/bpf_jit_comp.c | 2
arch/csky/include/asm/Kbuild | 1
arch/hexagon/include/asm/Kbuild | 1
arch/loongarch/include/asm/Kbuild | 1
arch/m68k/include/asm/Kbuild | 1
arch/microblaze/include/asm/Kbuild | 1
arch/mips/include/asm/Kbuild | 1
arch/nios2/include/asm/Kbuild | 1
arch/openrisc/include/asm/Kbuild | 1
arch/parisc/include/asm/patch.h | 13
arch/parisc/include/asm/text-patching.h | 13
arch/parisc/kernel/ftrace.c | 2
arch/parisc/kernel/jump_label.c | 2
arch/parisc/kernel/kgdb.c | 2
arch/parisc/kernel/kprobes.c | 2
arch/parisc/kernel/patch.c | 2
arch/powerpc/include/asm/code-patching.h | 275 --------------------
arch/powerpc/include/asm/kprobes.h | 2
arch/powerpc/include/asm/text-patching.h | 275 ++++++++++++++++++++
arch/powerpc/kernel/crash_dump.c | 2
arch/powerpc/kernel/epapr_paravirt.c | 2
arch/powerpc/kernel/jump_label.c | 2
arch/powerpc/kernel/kgdb.c | 2
arch/powerpc/kernel/kprobes.c | 2
arch/powerpc/kernel/module_32.c | 2
arch/powerpc/kernel/module_64.c | 2
arch/powerpc/kernel/optprobes.c | 2
arch/powerpc/kernel/process.c | 2
arch/powerpc/kernel/security.c | 2
arch/powerpc/kernel/setup_32.c | 2
arch/powerpc/kernel/setup_64.c | 2
arch/powerpc/kernel/static_call.c | 2
arch/powerpc/kernel/trace/ftrace.c | 2
arch/powerpc/kernel/trace/ftrace_64_pg.c | 2
arch/powerpc/lib/code-patching.c | 2
arch/powerpc/lib/feature-fixups.c | 2
arch/powerpc/lib/test-code-patching.c | 2
arch/powerpc/lib/test_emulate_step.c | 2
arch/powerpc/mm/book3s32/mmu.c | 2
arch/powerpc/mm/book3s64/hash_utils.c | 2
arch/powerpc/mm/book3s64/slb.c | 2
arch/powerpc/mm/kasan/init_32.c | 2
arch/powerpc/mm/mem.c | 2
arch/powerpc/mm/nohash/44x.c | 2
arch/powerpc/mm/nohash/book3e_pgtable.c | 2
arch/powerpc/mm/nohash/tlb.c | 2
arch/powerpc/mm/nohash/tlb_64e.c | 2
arch/powerpc/net/bpf_jit_comp.c | 2
arch/powerpc/perf/8xx-pmu.c | 2
arch/powerpc/perf/core-book3s.c | 2
arch/powerpc/platforms/85xx/smp.c | 2
arch/powerpc/platforms/86xx/mpc86xx_smp.c | 2
arch/powerpc/platforms/cell/smp.c | 2
arch/powerpc/platforms/powermac/smp.c | 2
arch/powerpc/platforms/powernv/idle.c | 2
arch/powerpc/platforms/powernv/smp.c | 2
arch/powerpc/platforms/pseries/smp.c | 2
arch/powerpc/xmon/xmon.c | 2
arch/riscv/errata/andes/errata.c | 2
arch/riscv/errata/sifive/errata.c | 2
arch/riscv/errata/thead/errata.c | 2
arch/riscv/include/asm/patch.h | 16 -
arch/riscv/include/asm/text-patching.h | 16 +
arch/riscv/include/asm/uprobes.h | 2
arch/riscv/kernel/alternative.c | 2
arch/riscv/kernel/cpufeature.c | 3
arch/riscv/kernel/ftrace.c | 2
arch/riscv/kernel/jump_label.c | 2
arch/riscv/kernel/patch.c | 2
arch/riscv/kernel/probes/kprobes.c | 2
arch/riscv/net/bpf_jit_comp64.c | 2
arch/riscv/net/bpf_jit_core.c | 2
arch/sh/include/asm/Kbuild | 1
arch/sparc/include/asm/Kbuild | 1
arch/um/kernel/um_arch.c | 5
arch/x86/include/asm/text-patching.h | 1
arch/xtensa/include/asm/Kbuild | 1
include/asm-generic/text-patching.h | 5
include/linux/text-patching.h | 15 +
97 files changed, 449 insertions(+), 409 deletions(-)
--- a/arch/alpha/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/alpha/include/asm/Kbuild
@@ -5,3 +5,4 @@ generic-y += agp.h
generic-y += asm-offsets.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
+generic-y += text-patching.h
--- a/arch/arc/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/arc/include/asm/Kbuild
@@ -6,3 +6,4 @@ generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += parport.h
generic-y += user.h
+generic-y += text-patching.h
diff --git a/arch/arm64/include/asm/patching.h a/arch/arm64/include/asm/patching.h
deleted file mode 100644
--- a/arch/arm64/include/asm/patching.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-#ifndef __ASM_PATCHING_H
-#define __ASM_PATCHING_H
-
-#include <linux/types.h>
-
-int aarch64_insn_read(void *addr, u32 *insnp);
-int aarch64_insn_write(void *addr, u32 insn);
-
-int aarch64_insn_write_literal_u64(void *addr, u64 val);
-void *aarch64_insn_set(void *dst, u32 insn, size_t len);
-void *aarch64_insn_copy(void *dst, void *src, size_t len);
-
-int aarch64_insn_patch_text_nosync(void *addr, u32 insn);
-int aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt);
-
-#endif /* __ASM_PATCHING_H */
diff --git a/arch/arm64/include/asm/text-patching.h a/arch/arm64/include/asm/text-patching.h
new file mode 100664
--- /dev/null
+++ a/arch/arm64/include/asm/text-patching.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_PATCHING_H
+#define __ASM_PATCHING_H
+
+#include <linux/types.h>
+
+int aarch64_insn_read(void *addr, u32 *insnp);
+int aarch64_insn_write(void *addr, u32 insn);
+
+int aarch64_insn_write_literal_u64(void *addr, u64 val);
+void *aarch64_insn_set(void *dst, u32 insn, size_t len);
+void *aarch64_insn_copy(void *dst, void *src, size_t len);
+
+int aarch64_insn_patch_text_nosync(void *addr, u32 insn);
+int aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt);
+
+#endif /* __ASM_PATCHING_H */
--- a/arch/arm64/kernel/ftrace.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/ftrace.c
@@ -15,7 +15,7 @@
#include <asm/debug-monitors.h>
#include <asm/ftrace.h>
#include <asm/insn.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#ifdef CONFIG_DYNAMIC_FTRACE_WITH_ARGS
struct fregs_offset {
--- a/arch/arm64/kernel/jump_label.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/jump_label.c
@@ -9,7 +9,7 @@
#include <linux/jump_label.h>
#include <linux/smp.h>
#include <asm/insn.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
bool arch_jump_label_transform_queue(struct jump_entry *entry,
enum jump_label_type type)
--- a/arch/arm64/kernel/kgdb.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/kgdb.c
@@ -17,7 +17,7 @@
#include <asm/debug-monitors.h>
#include <asm/insn.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#include <asm/traps.h>
struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = {
--- a/arch/arm64/kernel/patching.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/patching.c
@@ -10,7 +10,7 @@
#include <asm/fixmap.h>
#include <asm/insn.h>
#include <asm/kprobes.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#include <asm/sections.h>
static DEFINE_RAW_SPINLOCK(patch_lock);
--- a/arch/arm64/kernel/probes/kprobes.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/probes/kprobes.c
@@ -27,7 +27,7 @@
#include <asm/debug-monitors.h>
#include <asm/insn.h>
#include <asm/irq.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#include <asm/ptrace.h>
#include <asm/sections.h>
#include <asm/system_misc.h>
--- a/arch/arm64/kernel/traps.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/kernel/traps.c
@@ -41,7 +41,7 @@
#include <asm/extable.h>
#include <asm/insn.h>
#include <asm/kprobes.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#include <asm/traps.h>
#include <asm/smp.h>
#include <asm/stack_pointer.h>
--- a/arch/arm64/net/bpf_jit_comp.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm64/net/bpf_jit_comp.c
@@ -19,7 +19,7 @@
#include <asm/cacheflush.h>
#include <asm/debug-monitors.h>
#include <asm/insn.h>
-#include <asm/patching.h>
+#include <asm/text-patching.h>
#include <asm/set_memory.h>
#include "bpf_jit.h"
diff --git a/arch/arm/include/asm/patch.h a/arch/arm/include/asm/patch.h
deleted file mode 100644
--- a/arch/arm/include/asm/patch.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ARM_KERNEL_PATCH_H
-#define _ARM_KERNEL_PATCH_H
-
-void patch_text(void *addr, unsigned int insn);
-void __patch_text_real(void *addr, unsigned int insn, bool remap);
-
-static inline void __patch_text(void *addr, unsigned int insn)
-{
- __patch_text_real(addr, insn, true);
-}
-
-static inline void __patch_text_early(void *addr, unsigned int insn)
-{
- __patch_text_real(addr, insn, false);
-}
-
-#endif
diff --git a/arch/arm/include/asm/text-patching.h a/arch/arm/include/asm/text-patching.h
new file mode 100664
--- /dev/null
+++ a/arch/arm/include/asm/text-patching.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARM_KERNEL_PATCH_H
+#define _ARM_KERNEL_PATCH_H
+
+void patch_text(void *addr, unsigned int insn);
+void __patch_text_real(void *addr, unsigned int insn, bool remap);
+
+static inline void __patch_text(void *addr, unsigned int insn)
+{
+ __patch_text_real(addr, insn, true);
+}
+
+static inline void __patch_text_early(void *addr, unsigned int insn)
+{
+ __patch_text_real(addr, insn, false);
+}
+
+#endif
--- a/arch/arm/kernel/ftrace.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/kernel/ftrace.c
@@ -23,7 +23,7 @@
#include <asm/insn.h>
#include <asm/set_memory.h>
#include <asm/stacktrace.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
/*
* The compiler emitted profiling hook consists of
--- a/arch/arm/kernel/jump_label.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/kernel/jump_label.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/jump_label.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/insn.h>
static void __arch_jump_label_transform(struct jump_entry *entry,
--- a/arch/arm/kernel/kgdb.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/kernel/kgdb.c
@@ -15,7 +15,7 @@
#include <linux/kgdb.h>
#include <linux/uaccess.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/traps.h>
struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] =
--- a/arch/arm/kernel/patch.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/kernel/patch.c
@@ -9,7 +9,7 @@
#include <asm/fixmap.h>
#include <asm/smp_plat.h>
#include <asm/opcodes.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
struct patch {
void *addr;
--- a/arch/arm/probes/kprobes/core.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/probes/kprobes/core.c
@@ -25,7 +25,7 @@
#include <asm/cacheflush.h>
#include <linux/percpu.h>
#include <linux/bug.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/sections.h>
#include "../decode-arm.h"
--- a/arch/arm/probes/kprobes/opt-arm.c~asm-generic-introduce-text-patchingh
+++ a/arch/arm/probes/kprobes/opt-arm.c
@@ -14,7 +14,7 @@
/* for arm_gen_branch */
#include <asm/insn.h>
/* for patch_text */
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include "core.h"
--- a/arch/csky/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/csky/include/asm/Kbuild
@@ -11,3 +11,4 @@ generic-y += qspinlock.h
generic-y += parport.h
generic-y += user.h
generic-y += vmlinux.lds.h
+generic-y += text-patching.h
--- a/arch/hexagon/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/hexagon/include/asm/Kbuild
@@ -5,3 +5,4 @@ generic-y += extable.h
generic-y += iomap.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
+generic-y += text-patching.h
--- a/arch/loongarch/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/loongarch/include/asm/Kbuild
@@ -11,3 +11,4 @@ generic-y += ioctl.h
generic-y += mmzone.h
generic-y += statfs.h
generic-y += param.h
+generic-y += text-patching.h
--- a/arch/m68k/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/m68k/include/asm/Kbuild
@@ -4,3 +4,4 @@ generic-y += extable.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += spinlock.h
+generic-y += text-patching.h
--- a/arch/microblaze/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/microblaze/include/asm/Kbuild
@@ -8,3 +8,4 @@ generic-y += parport.h
generic-y += syscalls.h
generic-y += tlb.h
generic-y += user.h
+generic-y += text-patching.h
--- a/arch/mips/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/mips/include/asm/Kbuild
@@ -13,3 +13,4 @@ generic-y += parport.h
generic-y += qrwlock.h
generic-y += qspinlock.h
generic-y += user.h
+generic-y += text-patching.h
--- a/arch/nios2/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/nios2/include/asm/Kbuild
@@ -7,3 +7,4 @@ generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += spinlock.h
generic-y += user.h
+generic-y += text-patching.h
--- a/arch/openrisc/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/openrisc/include/asm/Kbuild
@@ -9,3 +9,4 @@ generic-y += spinlock.h
generic-y += qrwlock_types.h
generic-y += qrwlock.h
generic-y += user.h
+generic-y += text-patching.h
diff --git a/arch/parisc/include/asm/patch.h a/arch/parisc/include/asm/patch.h
deleted file mode 100644
--- a/arch/parisc/include/asm/patch.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _PARISC_KERNEL_PATCH_H
-#define _PARISC_KERNEL_PATCH_H
-
-/* stop machine and patch kernel text */
-void patch_text(void *addr, unsigned int insn);
-void patch_text_multiple(void *addr, u32 *insn, unsigned int len);
-
-/* patch kernel text with machine already stopped (e.g. in kgdb) */
-void __patch_text(void *addr, u32 insn);
-void __patch_text_multiple(void *addr, u32 *insn, unsigned int len);
-
-#endif
diff --git a/arch/parisc/include/asm/text-patching.h a/arch/parisc/include/asm/text-patching.h
new file mode 100664
--- /dev/null
+++ a/arch/parisc/include/asm/text-patching.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PARISC_KERNEL_PATCH_H
+#define _PARISC_KERNEL_PATCH_H
+
+/* stop machine and patch kernel text */
+void patch_text(void *addr, unsigned int insn);
+void patch_text_multiple(void *addr, u32 *insn, unsigned int len);
+
+/* patch kernel text with machine already stopped (e.g. in kgdb) */
+void __patch_text(void *addr, u32 insn);
+void __patch_text_multiple(void *addr, u32 *insn, unsigned int len);
+
+#endif
--- a/arch/parisc/kernel/ftrace.c~asm-generic-introduce-text-patchingh
+++ a/arch/parisc/kernel/ftrace.c
@@ -20,7 +20,7 @@
#include <asm/assembly.h>
#include <asm/sections.h>
#include <asm/ftrace.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#define __hot __section(".text.hot")
--- a/arch/parisc/kernel/jump_label.c~asm-generic-introduce-text-patchingh
+++ a/arch/parisc/kernel/jump_label.c
@@ -8,7 +8,7 @@
#include <linux/jump_label.h>
#include <linux/bug.h>
#include <asm/alternative.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
static inline int reassemble_17(int as17)
{
--- a/arch/parisc/kernel/kgdb.c~asm-generic-introduce-text-patchingh
+++ a/arch/parisc/kernel/kgdb.c
@@ -16,7 +16,7 @@
#include <asm/ptrace.h>
#include <asm/traps.h>
#include <asm/processor.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/cacheflush.h>
const struct kgdb_arch arch_kgdb_ops = {
--- a/arch/parisc/kernel/kprobes.c~asm-generic-introduce-text-patchingh
+++ a/arch/parisc/kernel/kprobes.c
@@ -12,7 +12,7 @@
#include <linux/kprobes.h>
#include <linux/slab.h>
#include <asm/cacheflush.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
--- a/arch/parisc/kernel/patch.c~asm-generic-introduce-text-patchingh
+++ a/arch/parisc/kernel/patch.c
@@ -13,7 +13,7 @@
#include <asm/cacheflush.h>
#include <asm/fixmap.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
struct patch {
void *addr;
diff --git a/arch/powerpc/include/asm/code-patching.h a/arch/powerpc/include/asm/code-patching.h
deleted file mode 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ /dev/null
@@ -1,275 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-#ifndef _ASM_POWERPC_CODE_PATCHING_H
-#define _ASM_POWERPC_CODE_PATCHING_H
-
-/*
- * Copyright 2008, Michael Ellerman, IBM Corporation.
- */
-
-#include <asm/types.h>
-#include <asm/ppc-opcode.h>
-#include <linux/string.h>
-#include <linux/kallsyms.h>
-#include <asm/asm-compat.h>
-#include <asm/inst.h>
-
-/* Flags for create_branch:
- * "b" == create_branch(addr, target, 0);
- * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE);
- * "bl" == create_branch(addr, target, BRANCH_SET_LINK);
- * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK);
- */
-#define BRANCH_SET_LINK 0x1
-#define BRANCH_ABSOLUTE 0x2
-
-/*
- * Powerpc branch instruction is :
- *
- * 0 6 30 31
- * +---------+----------------+---+---+
- * | opcode | LI |AA |LK |
- * +---------+----------------+---+---+
- * Where AA = 0 and LK = 0
- *
- * LI is a signed 24 bits integer. The real branch offset is computed
- * by: imm32 = SignExtend(LI:'0b00', 32);
- *
- * So the maximum forward branch should be:
- * (0x007fffff << 2) = 0x01fffffc = 0x1fffffc
- * The maximum backward branch should be:
- * (0xff800000 << 2) = 0xfe000000 = -0x2000000
- */
-static inline bool is_offset_in_branch_range(long offset)
-{
- return (offset >= -0x2000000 && offset <= 0x1fffffc && !(offset & 0x3));
-}
-
-static inline bool is_offset_in_cond_branch_range(long offset)
-{
- return offset >= -0x8000 && offset <= 0x7fff && !(offset & 0x3);
-}
-
-static inline int create_branch(ppc_inst_t *instr, const u32 *addr,
- unsigned long target, int flags)
-{
- long offset;
-
- *instr = ppc_inst(0);
- offset = target;
- if (! (flags & BRANCH_ABSOLUTE))
- offset = offset - (unsigned long)addr;
-
- /* Check we can represent the target in the instruction format */
- if (!is_offset_in_branch_range(offset))
- return 1;
-
- /* Mask out the flags and target, so they don't step on each other. */
- *instr = ppc_inst(0x48000000 | (flags & 0x3) | (offset & 0x03FFFFFC));
-
- return 0;
-}
-
-int create_cond_branch(ppc_inst_t *instr, const u32 *addr,
- unsigned long target, int flags);
-int patch_branch(u32 *addr, unsigned long target, int flags);
-int patch_instruction(u32 *addr, ppc_inst_t instr);
-int raw_patch_instruction(u32 *addr, ppc_inst_t instr);
-int patch_instructions(u32 *addr, u32 *code, size_t len, bool repeat_instr);
-
-/*
- * The data patching functions patch_uint() and patch_ulong(), etc., must be
- * called on aligned addresses.
- *
- * The instruction patching functions patch_instruction() and similar must be
- * called on addresses satisfying instruction alignment requirements.
- */
-
-#ifdef CONFIG_PPC64
-
-int patch_uint(void *addr, unsigned int val);
-int patch_ulong(void *addr, unsigned long val);
-
-#define patch_u64 patch_ulong
-
-#else
-
-static inline int patch_uint(void *addr, unsigned int val)
-{
- if (!IS_ALIGNED((unsigned long)addr, sizeof(unsigned int)))
- return -EINVAL;
-
- return patch_instruction(addr, ppc_inst(val));
-}
-
-static inline int patch_ulong(void *addr, unsigned long val)
-{
- if (!IS_ALIGNED((unsigned long)addr, sizeof(unsigned long)))
- return -EINVAL;
-
- return patch_instruction(addr, ppc_inst(val));
-}
-
-#endif
-
-#define patch_u32 patch_uint
-
-static inline unsigned long patch_site_addr(s32 *site)
-{
- return (unsigned long)site + *site;
-}
-
-static inline int patch_instruction_site(s32 *site, ppc_inst_t instr)
-{
- return patch_instruction((u32 *)patch_site_addr(site), instr);
-}
-
-static inline int patch_branch_site(s32 *site, unsigned long target, int flags)
-{
- return patch_branch((u32 *)patch_site_addr(site), target, flags);
-}
-
-static inline int modify_instruction(unsigned int *addr, unsigned int clr,
- unsigned int set)
-{
- return patch_instruction(addr, ppc_inst((*addr & ~clr) | set));
-}
-
-static inline int modify_instruction_site(s32 *site, unsigned int clr, unsigned int set)
-{
- return modify_instruction((unsigned int *)patch_site_addr(site), clr, set);
-}
-
-static inline unsigned int branch_opcode(ppc_inst_t instr)
-{
- return ppc_inst_primary_opcode(instr) & 0x3F;
-}
-
-static inline int instr_is_branch_iform(ppc_inst_t instr)
-{
- return branch_opcode(instr) == 18;
-}
-
-static inline int instr_is_branch_bform(ppc_inst_t instr)
-{
- return branch_opcode(instr) == 16;
-}
-
-int instr_is_relative_branch(ppc_inst_t instr);
-int instr_is_relative_link_branch(ppc_inst_t instr);
-unsigned long branch_target(const u32 *instr);
-int translate_branch(ppc_inst_t *instr, const u32 *dest, const u32 *src);
-bool is_conditional_branch(ppc_inst_t instr);
-
-#define OP_RT_RA_MASK 0xffff0000UL
-#define LIS_R2 (PPC_RAW_LIS(_R2, 0))
-#define ADDIS_R2_R12 (PPC_RAW_ADDIS(_R2, _R12, 0))
-#define ADDI_R2_R2 (PPC_RAW_ADDI(_R2, _R2, 0))
-
-
-static inline unsigned long ppc_function_entry(void *func)
-{
-#ifdef CONFIG_PPC64_ELF_ABI_V2
- u32 *insn = func;
-
- /*
- * A PPC64 ABIv2 function may have a local and a global entry
- * point. We need to use the local entry point when patching
- * functions, so identify and step over the global entry point
- * sequence.
- *
- * The global entry point sequence is always of the form:
- *
- * addis r2,r12,XXXX
- * addi r2,r2,XXXX
- *
- * A linker optimisation may convert the addis to lis:
- *
- * lis r2,XXXX
- * addi r2,r2,XXXX
- */
- if ((((*insn & OP_RT_RA_MASK) == ADDIS_R2_R12) ||
- ((*insn & OP_RT_RA_MASK) == LIS_R2)) &&
- ((*(insn+1) & OP_RT_RA_MASK) == ADDI_R2_R2))
- return (unsigned long)(insn + 2);
- else
- return (unsigned long)func;
-#elif defined(CONFIG_PPC64_ELF_ABI_V1)
- /*
- * On PPC64 ABIv1 the function pointer actually points to the
- * function's descriptor. The first entry in the descriptor is the
- * address of the function text.
- */
- return ((struct func_desc *)func)->addr;
-#else
- return (unsigned long)func;
-#endif
-}
-
-static inline unsigned long ppc_global_function_entry(void *func)
-{
-#ifdef CONFIG_PPC64_ELF_ABI_V2
- /* PPC64 ABIv2 the global entry point is at the address */
- return (unsigned long)func;
-#else
- /* All other cases there is no change vs ppc_function_entry() */
- return ppc_function_entry(func);
-#endif
-}
-
-/*
- * Wrapper around kallsyms_lookup() to return function entry address:
- * - For ABIv1, we lookup the dot variant.
- * - For ABIv2, we return the local entry point.
- */
-static inline unsigned long ppc_kallsyms_lookup_name(const char *name)
-{
- unsigned long addr;
-#ifdef CONFIG_PPC64_ELF_ABI_V1
- /* check for dot variant */
- char dot_name[1 + KSYM_NAME_LEN];
- bool dot_appended = false;
-
- if (strnlen(name, KSYM_NAME_LEN) >= KSYM_NAME_LEN)
- return 0;
-
- if (name[0] != '.') {
- dot_name[0] = '.';
- dot_name[1] = '\0';
- strlcat(dot_name, name, sizeof(dot_name));
- dot_appended = true;
- } else {
- dot_name[0] = '\0';
- strlcat(dot_name, name, sizeof(dot_name));
- }
- addr = kallsyms_lookup_name(dot_name);
- if (!addr && dot_appended)
- /* Let's try the original non-dot symbol lookup */
- addr = kallsyms_lookup_name(name);
-#elif defined(CONFIG_PPC64_ELF_ABI_V2)
- addr = kallsyms_lookup_name(name);
- if (addr)
- addr = ppc_function_entry((void *)addr);
-#else
- addr = kallsyms_lookup_name(name);
-#endif
- return addr;
-}
-
-/*
- * Some instruction encodings commonly used in dynamic ftracing
- * and function live patching.
- */
-
-/* This must match the definition of STK_GOT in <asm/ppc_asm.h> */
-#ifdef CONFIG_PPC64_ELF_ABI_V2
-#define R2_STACK_OFFSET 24
-#else
-#define R2_STACK_OFFSET 40
-#endif
-
-#define PPC_INST_LD_TOC PPC_RAW_LD(_R2, _R1, R2_STACK_OFFSET)
-
-/* usually preceded by a mflr r0 */
-#define PPC_INST_STD_LR PPC_RAW_STD(_R0, _R1, PPC_LR_STKOFF)
-
-#endif /* _ASM_POWERPC_CODE_PATCHING_H */
--- a/arch/powerpc/include/asm/kprobes.h~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/include/asm/kprobes.h
@@ -21,7 +21,7 @@
#include <linux/percpu.h>
#include <linux/module.h>
#include <asm/probes.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#ifdef CONFIG_KPROBES
#define __ARCH_WANT_KPROBES_INSN_SLOT
diff --git a/arch/powerpc/include/asm/text-patching.h a/arch/powerpc/include/asm/text-patching.h
new file mode 100664
--- /dev/null
+++ a/arch/powerpc/include/asm/text-patching.h
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_POWERPC_CODE_PATCHING_H
+#define _ASM_POWERPC_CODE_PATCHING_H
+
+/*
+ * Copyright 2008, Michael Ellerman, IBM Corporation.
+ */
+
+#include <asm/types.h>
+#include <asm/ppc-opcode.h>
+#include <linux/string.h>
+#include <linux/kallsyms.h>
+#include <asm/asm-compat.h>
+#include <asm/inst.h>
+
+/* Flags for create_branch:
+ * "b" == create_branch(addr, target, 0);
+ * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE);
+ * "bl" == create_branch(addr, target, BRANCH_SET_LINK);
+ * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK);
+ */
+#define BRANCH_SET_LINK 0x1
+#define BRANCH_ABSOLUTE 0x2
+
+/*
+ * Powerpc branch instruction is :
+ *
+ * 0 6 30 31
+ * +---------+----------------+---+---+
+ * | opcode | LI |AA |LK |
+ * +---------+----------------+---+---+
+ * Where AA = 0 and LK = 0
+ *
+ * LI is a signed 24 bits integer. The real branch offset is computed
+ * by: imm32 = SignExtend(LI:'0b00', 32);
+ *
+ * So the maximum forward branch should be:
+ * (0x007fffff << 2) = 0x01fffffc = 0x1fffffc
+ * The maximum backward branch should be:
+ * (0xff800000 << 2) = 0xfe000000 = -0x2000000
+ */
+static inline bool is_offset_in_branch_range(long offset)
+{
+ return (offset >= -0x2000000 && offset <= 0x1fffffc && !(offset & 0x3));
+}
+
+static inline bool is_offset_in_cond_branch_range(long offset)
+{
+ return offset >= -0x8000 && offset <= 0x7fff && !(offset & 0x3);
+}
+
+static inline int create_branch(ppc_inst_t *instr, const u32 *addr,
+ unsigned long target, int flags)
+{
+ long offset;
+
+ *instr = ppc_inst(0);
+ offset = target;
+ if (! (flags & BRANCH_ABSOLUTE))
+ offset = offset - (unsigned long)addr;
+
+ /* Check we can represent the target in the instruction format */
+ if (!is_offset_in_branch_range(offset))
+ return 1;
+
+ /* Mask out the flags and target, so they don't step on each other. */
+ *instr = ppc_inst(0x48000000 | (flags & 0x3) | (offset & 0x03FFFFFC));
+
+ return 0;
+}
+
+int create_cond_branch(ppc_inst_t *instr, const u32 *addr,
+ unsigned long target, int flags);
+int patch_branch(u32 *addr, unsigned long target, int flags);
+int patch_instruction(u32 *addr, ppc_inst_t instr);
+int raw_patch_instruction(u32 *addr, ppc_inst_t instr);
+int patch_instructions(u32 *addr, u32 *code, size_t len, bool repeat_instr);
+
+/*
+ * The data patching functions patch_uint() and patch_ulong(), etc., must be
+ * called on aligned addresses.
+ *
+ * The instruction patching functions patch_instruction() and similar must be
+ * called on addresses satisfying instruction alignment requirements.
+ */
+
+#ifdef CONFIG_PPC64
+
+int patch_uint(void *addr, unsigned int val);
+int patch_ulong(void *addr, unsigned long val);
+
+#define patch_u64 patch_ulong
+
+#else
+
+static inline int patch_uint(void *addr, unsigned int val)
+{
+ if (!IS_ALIGNED((unsigned long)addr, sizeof(unsigned int)))
+ return -EINVAL;
+
+ return patch_instruction(addr, ppc_inst(val));
+}
+
+static inline int patch_ulong(void *addr, unsigned long val)
+{
+ if (!IS_ALIGNED((unsigned long)addr, sizeof(unsigned long)))
+ return -EINVAL;
+
+ return patch_instruction(addr, ppc_inst(val));
+}
+
+#endif
+
+#define patch_u32 patch_uint
+
+static inline unsigned long patch_site_addr(s32 *site)
+{
+ return (unsigned long)site + *site;
+}
+
+static inline int patch_instruction_site(s32 *site, ppc_inst_t instr)
+{
+ return patch_instruction((u32 *)patch_site_addr(site), instr);
+}
+
+static inline int patch_branch_site(s32 *site, unsigned long target, int flags)
+{
+ return patch_branch((u32 *)patch_site_addr(site), target, flags);
+}
+
+static inline int modify_instruction(unsigned int *addr, unsigned int clr,
+ unsigned int set)
+{
+ return patch_instruction(addr, ppc_inst((*addr & ~clr) | set));
+}
+
+static inline int modify_instruction_site(s32 *site, unsigned int clr, unsigned int set)
+{
+ return modify_instruction((unsigned int *)patch_site_addr(site), clr, set);
+}
+
+static inline unsigned int branch_opcode(ppc_inst_t instr)
+{
+ return ppc_inst_primary_opcode(instr) & 0x3F;
+}
+
+static inline int instr_is_branch_iform(ppc_inst_t instr)
+{
+ return branch_opcode(instr) == 18;
+}
+
+static inline int instr_is_branch_bform(ppc_inst_t instr)
+{
+ return branch_opcode(instr) == 16;
+}
+
+int instr_is_relative_branch(ppc_inst_t instr);
+int instr_is_relative_link_branch(ppc_inst_t instr);
+unsigned long branch_target(const u32 *instr);
+int translate_branch(ppc_inst_t *instr, const u32 *dest, const u32 *src);
+bool is_conditional_branch(ppc_inst_t instr);
+
+#define OP_RT_RA_MASK 0xffff0000UL
+#define LIS_R2 (PPC_RAW_LIS(_R2, 0))
+#define ADDIS_R2_R12 (PPC_RAW_ADDIS(_R2, _R12, 0))
+#define ADDI_R2_R2 (PPC_RAW_ADDI(_R2, _R2, 0))
+
+
+static inline unsigned long ppc_function_entry(void *func)
+{
+#ifdef CONFIG_PPC64_ELF_ABI_V2
+ u32 *insn = func;
+
+ /*
+ * A PPC64 ABIv2 function may have a local and a global entry
+ * point. We need to use the local entry point when patching
+ * functions, so identify and step over the global entry point
+ * sequence.
+ *
+ * The global entry point sequence is always of the form:
+ *
+ * addis r2,r12,XXXX
+ * addi r2,r2,XXXX
+ *
+ * A linker optimisation may convert the addis to lis:
+ *
+ * lis r2,XXXX
+ * addi r2,r2,XXXX
+ */
+ if ((((*insn & OP_RT_RA_MASK) == ADDIS_R2_R12) ||
+ ((*insn & OP_RT_RA_MASK) == LIS_R2)) &&
+ ((*(insn+1) & OP_RT_RA_MASK) == ADDI_R2_R2))
+ return (unsigned long)(insn + 2);
+ else
+ return (unsigned long)func;
+#elif defined(CONFIG_PPC64_ELF_ABI_V1)
+ /*
+ * On PPC64 ABIv1 the function pointer actually points to the
+ * function's descriptor. The first entry in the descriptor is the
+ * address of the function text.
+ */
+ return ((struct func_desc *)func)->addr;
+#else
+ return (unsigned long)func;
+#endif
+}
+
+static inline unsigned long ppc_global_function_entry(void *func)
+{
+#ifdef CONFIG_PPC64_ELF_ABI_V2
+ /* PPC64 ABIv2 the global entry point is at the address */
+ return (unsigned long)func;
+#else
+ /* All other cases there is no change vs ppc_function_entry() */
+ return ppc_function_entry(func);
+#endif
+}
+
+/*
+ * Wrapper around kallsyms_lookup() to return function entry address:
+ * - For ABIv1, we lookup the dot variant.
+ * - For ABIv2, we return the local entry point.
+ */
+static inline unsigned long ppc_kallsyms_lookup_name(const char *name)
+{
+ unsigned long addr;
+#ifdef CONFIG_PPC64_ELF_ABI_V1
+ /* check for dot variant */
+ char dot_name[1 + KSYM_NAME_LEN];
+ bool dot_appended = false;
+
+ if (strnlen(name, KSYM_NAME_LEN) >= KSYM_NAME_LEN)
+ return 0;
+
+ if (name[0] != '.') {
+ dot_name[0] = '.';
+ dot_name[1] = '\0';
+ strlcat(dot_name, name, sizeof(dot_name));
+ dot_appended = true;
+ } else {
+ dot_name[0] = '\0';
+ strlcat(dot_name, name, sizeof(dot_name));
+ }
+ addr = kallsyms_lookup_name(dot_name);
+ if (!addr && dot_appended)
+ /* Let's try the original non-dot symbol lookup */
+ addr = kallsyms_lookup_name(name);
+#elif defined(CONFIG_PPC64_ELF_ABI_V2)
+ addr = kallsyms_lookup_name(name);
+ if (addr)
+ addr = ppc_function_entry((void *)addr);
+#else
+ addr = kallsyms_lookup_name(name);
+#endif
+ return addr;
+}
+
+/*
+ * Some instruction encodings commonly used in dynamic ftracing
+ * and function live patching.
+ */
+
+/* This must match the definition of STK_GOT in <asm/ppc_asm.h> */
+#ifdef CONFIG_PPC64_ELF_ABI_V2
+#define R2_STACK_OFFSET 24
+#else
+#define R2_STACK_OFFSET 40
+#endif
+
+#define PPC_INST_LD_TOC PPC_RAW_LD(_R2, _R1, R2_STACK_OFFSET)
+
+/* usually preceded by a mflr r0 */
+#define PPC_INST_STD_LR PPC_RAW_STD(_R0, _R1, PPC_LR_STKOFF)
+
+#endif /* _ASM_POWERPC_CODE_PATCHING_H */
--- a/arch/powerpc/kernel/crash_dump.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/crash_dump.c
@@ -13,7 +13,7 @@
#include <linux/io.h>
#include <linux/memblock.h>
#include <linux/of.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/kdump.h>
#include <asm/firmware.h>
#include <linux/uio.h>
--- a/arch/powerpc/kernel/epapr_paravirt.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/epapr_paravirt.c
@@ -9,7 +9,7 @@
#include <linux/of_fdt.h>
#include <asm/epapr_hcalls.h>
#include <asm/cacheflush.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/machdep.h>
#include <asm/inst.h>
--- a/arch/powerpc/kernel/jump_label.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/jump_label.c
@@ -5,7 +5,7 @@
#include <linux/kernel.h>
#include <linux/jump_label.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/inst.h>
void arch_jump_label_transform(struct jump_entry *entry,
--- a/arch/powerpc/kernel/kgdb.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/kgdb.c
@@ -21,7 +21,7 @@
#include <asm/processor.h>
#include <asm/machdep.h>
#include <asm/debug.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <linux/slab.h>
#include <asm/inst.h>
--- a/arch/powerpc/kernel/kprobes.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/kprobes.c
@@ -21,7 +21,7 @@
#include <linux/slab.h>
#include <linux/set_memory.h>
#include <linux/execmem.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/cacheflush.h>
#include <asm/sstep.h>
#include <asm/sections.h>
--- a/arch/powerpc/kernel/module_32.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/module_32.c
@@ -18,7 +18,7 @@
#include <linux/bug.h>
#include <linux/sort.h>
#include <asm/setup.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
/* Count how many different relocations (different symbol, different
addend) */
--- a/arch/powerpc/kernel/module_64.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/module_64.c
@@ -17,7 +17,7 @@
#include <linux/kernel.h>
#include <asm/module.h>
#include <asm/firmware.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <linux/sort.h>
#include <asm/setup.h>
#include <asm/sections.h>
--- a/arch/powerpc/kernel/optprobes.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/optprobes.c
@@ -13,7 +13,7 @@
#include <asm/kprobes.h>
#include <asm/ptrace.h>
#include <asm/cacheflush.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/sstep.h>
#include <asm/ppc-opcode.h>
#include <asm/inst.h>
--- a/arch/powerpc/kernel/process.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/process.c
@@ -54,7 +54,7 @@
#include <asm/firmware.h>
#include <asm/hw_irq.h>
#endif
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/exec.h>
#include <asm/livepatch.h>
#include <asm/cpu_has_feature.h>
--- a/arch/powerpc/kernel/security.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/security.c
@@ -14,7 +14,7 @@
#include <linux/debugfs.h>
#include <asm/asm-prototypes.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/security_features.h>
#include <asm/sections.h>
#include <asm/setup.h>
--- a/arch/powerpc/kernel/setup_32.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/setup_32.c
@@ -40,7 +40,7 @@
#include <asm/time.h>
#include <asm/serial.h>
#include <asm/udbg.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/cpu_has_feature.h>
#include <asm/asm-prototypes.h>
#include <asm/kdump.h>
--- a/arch/powerpc/kernel/setup_64.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/setup_64.c
@@ -60,7 +60,7 @@
#include <asm/xmon.h>
#include <asm/udbg.h>
#include <asm/kexec.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/ftrace.h>
#include <asm/opal.h>
#include <asm/cputhreads.h>
--- a/arch/powerpc/kernel/static_call.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/static_call.c
@@ -2,7 +2,7 @@
#include <linux/memory.h>
#include <linux/static_call.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
void arch_static_call_transform(void *site, void *tramp, void *func, bool tail)
{
--- a/arch/powerpc/kernel/trace/ftrace_64_pg.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/trace/ftrace_64_pg.c
@@ -23,7 +23,7 @@
#include <linux/list.h>
#include <asm/cacheflush.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/ftrace.h>
#include <asm/syscall.h>
#include <asm/inst.h>
--- a/arch/powerpc/kernel/trace/ftrace.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/kernel/trace/ftrace.c
@@ -23,7 +23,7 @@
#include <linux/list.h>
#include <asm/cacheflush.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/ftrace.h>
#include <asm/syscall.h>
#include <asm/inst.h>
--- a/arch/powerpc/lib/code-patching.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/lib/code-patching.c
@@ -17,7 +17,7 @@
#include <asm/tlb.h>
#include <asm/tlbflush.h>
#include <asm/page.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/inst.h>
static int __patch_mem(void *exec_addr, unsigned long val, void *patch_addr, bool is_dword)
--- a/arch/powerpc/lib/feature-fixups.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/lib/feature-fixups.c
@@ -16,7 +16,7 @@
#include <linux/sched/mm.h>
#include <linux/stop_machine.h>
#include <asm/cputable.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/interrupt.h>
#include <asm/page.h>
#include <asm/sections.h>
--- a/arch/powerpc/lib/test-code-patching.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/lib/test-code-patching.c
@@ -6,7 +6,7 @@
#include <linux/vmalloc.h>
#include <linux/init.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
static int __init instr_is_branch_to_addr(const u32 *instr, unsigned long addr)
{
--- a/arch/powerpc/lib/test_emulate_step.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/lib/test_emulate_step.c
@@ -11,7 +11,7 @@
#include <asm/cpu_has_feature.h>
#include <asm/sstep.h>
#include <asm/ppc-opcode.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/inst.h>
#define MAX_SUBTESTS 16
--- a/arch/powerpc/mm/book3s32/mmu.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/book3s32/mmu.c
@@ -25,7 +25,7 @@
#include <asm/mmu.h>
#include <asm/machdep.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/sections.h>
#include <mm/mmu_decl.h>
--- a/arch/powerpc/mm/book3s64/hash_utils.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/book3s64/hash_utils.c
@@ -57,7 +57,7 @@
#include <asm/sections.h>
#include <asm/copro.h>
#include <asm/udbg.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/fadump.h>
#include <asm/firmware.h>
#include <asm/tm.h>
--- a/arch/powerpc/mm/book3s64/slb.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/book3s64/slb.c
@@ -24,7 +24,7 @@
#include <linux/pgtable.h>
#include <asm/udbg.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include "internal.h"
--- a/arch/powerpc/mm/kasan/init_32.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/kasan/init_32.c
@@ -7,7 +7,7 @@
#include <linux/memblock.h>
#include <linux/sched/task.h>
#include <asm/pgalloc.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <mm/mmu_decl.h>
static pgprot_t __init kasan_prot_ro(void)
--- a/arch/powerpc/mm/mem.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/mem.c
@@ -26,7 +26,7 @@
#include <asm/svm.h>
#include <asm/mmzone.h>
#include <asm/ftrace.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/setup.h>
#include <asm/fixmap.h>
--- a/arch/powerpc/mm/nohash/44x.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/nohash/44x.c
@@ -24,7 +24,7 @@
#include <asm/mmu.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/smp.h>
#include <mm/mmu_decl.h>
--- a/arch/powerpc/mm/nohash/book3e_pgtable.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/nohash/book3e_pgtable.c
@@ -10,7 +10,7 @@
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/dma.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <mm/mmu_decl.h>
--- a/arch/powerpc/mm/nohash/tlb_64e.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/nohash/tlb_64e.c
@@ -24,7 +24,7 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#include <asm/tlb.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/cputhreads.h>
#include <mm/mmu_decl.h>
--- a/arch/powerpc/mm/nohash/tlb.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/mm/nohash/tlb.c
@@ -37,7 +37,7 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#include <asm/tlb.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/cputhreads.h>
#include <asm/hugetlb.h>
#include <asm/paca.h>
--- a/arch/powerpc/net/bpf_jit_comp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/net/bpf_jit_comp.c
@@ -18,7 +18,7 @@
#include <linux/bpf.h>
#include <asm/kprobes.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include "bpf_jit.h"
--- a/arch/powerpc/perf/8xx-pmu.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/perf/8xx-pmu.c
@@ -14,7 +14,7 @@
#include <asm/machdep.h>
#include <asm/firmware.h>
#include <asm/ptrace.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/inst.h>
#define PERF_8xx_ID_CPU_CYCLES 1
--- a/arch/powerpc/perf/core-book3s.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/perf/core-book3s.c
@@ -16,7 +16,7 @@
#include <asm/machdep.h>
#include <asm/firmware.h>
#include <asm/ptrace.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/hw_irq.h>
#include <asm/interrupt.h>
--- a/arch/powerpc/platforms/85xx/smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/85xx/smp.c
@@ -23,7 +23,7 @@
#include <asm/mpic.h>
#include <asm/cacheflush.h>
#include <asm/dbell.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/cputhreads.h>
#include <asm/fsl_pm.h>
--- a/arch/powerpc/platforms/86xx/mpc86xx_smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/86xx/mpc86xx_smp.c
@@ -12,7 +12,7 @@
#include <linux/delay.h>
#include <linux/pgtable.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/page.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
--- a/arch/powerpc/platforms/cell/smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/cell/smp.c
@@ -35,7 +35,7 @@
#include <asm/firmware.h>
#include <asm/rtas.h>
#include <asm/cputhreads.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include "interrupt.h"
#include <asm/udbg.h>
--- a/arch/powerpc/platforms/powermac/smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/powermac/smp.c
@@ -35,7 +35,7 @@
#include <asm/ptrace.h>
#include <linux/atomic.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/irq.h>
#include <asm/page.h>
#include <asm/sections.h>
--- a/arch/powerpc/platforms/powernv/idle.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/powernv/idle.c
@@ -18,7 +18,7 @@
#include <asm/opal.h>
#include <asm/cputhreads.h>
#include <asm/cpuidle.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/smp.h>
#include <asm/runlatch.h>
#include <asm/dbell.h>
--- a/arch/powerpc/platforms/powernv/smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/powernv/smp.c
@@ -28,7 +28,7 @@
#include <asm/xive.h>
#include <asm/opal.h>
#include <asm/runlatch.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/dbell.h>
#include <asm/kvm_ppc.h>
#include <asm/ppc-opcode.h>
--- a/arch/powerpc/platforms/pseries/smp.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/platforms/pseries/smp.c
@@ -39,7 +39,7 @@
#include <asm/xive.h>
#include <asm/dbell.h>
#include <asm/plpar_wrappers.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/svm.h>
#include <asm/kvm_guest.h>
--- a/arch/powerpc/xmon/xmon.c~asm-generic-introduce-text-patchingh
+++ a/arch/powerpc/xmon/xmon.c
@@ -50,7 +50,7 @@
#include <asm/xive.h>
#include <asm/opal.h>
#include <asm/firmware.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
#include <asm/sections.h>
#include <asm/inst.h>
#include <asm/interrupt.h>
--- a/arch/riscv/errata/andes/errata.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/errata/andes/errata.c
@@ -13,7 +13,7 @@
#include <asm/alternative.h>
#include <asm/cacheflush.h>
#include <asm/errata_list.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/processor.h>
#include <asm/sbi.h>
#include <asm/vendorid_list.h>
--- a/arch/riscv/errata/sifive/errata.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/errata/sifive/errata.c
@@ -8,7 +8,7 @@
#include <linux/module.h>
#include <linux/string.h>
#include <linux/bug.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/alternative.h>
#include <asm/vendorid_list.h>
#include <asm/errata_list.h>
--- a/arch/riscv/errata/thead/errata.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/errata/thead/errata.c
@@ -16,7 +16,7 @@
#include <asm/errata_list.h>
#include <asm/hwprobe.h>
#include <asm/io.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/vendorid_list.h>
#include <asm/vendor_extensions.h>
diff --git a/arch/riscv/include/asm/patch.h a/arch/riscv/include/asm/patch.h
deleted file mode 100644
--- a/arch/riscv/include/asm/patch.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2020 SiFive
- */
-
-#ifndef _ASM_RISCV_PATCH_H
-#define _ASM_RISCV_PATCH_H
-
-int patch_insn_write(void *addr, const void *insn, size_t len);
-int patch_text_nosync(void *addr, const void *insns, size_t len);
-int patch_text_set_nosync(void *addr, u8 c, size_t len);
-int patch_text(void *addr, u32 *insns, size_t len);
-
-extern int riscv_patch_in_stop_machine;
-
-#endif /* _ASM_RISCV_PATCH_H */
diff --git a/arch/riscv/include/asm/text-patching.h a/arch/riscv/include/asm/text-patching.h
new file mode 100664
--- /dev/null
+++ a/arch/riscv/include/asm/text-patching.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 SiFive
+ */
+
+#ifndef _ASM_RISCV_PATCH_H
+#define _ASM_RISCV_PATCH_H
+
+int patch_insn_write(void *addr, const void *insn, size_t len);
+int patch_text_nosync(void *addr, const void *insns, size_t len);
+int patch_text_set_nosync(void *addr, u8 c, size_t len);
+int patch_text(void *addr, u32 *insns, size_t len);
+
+extern int riscv_patch_in_stop_machine;
+
+#endif /* _ASM_RISCV_PATCH_H */
--- a/arch/riscv/include/asm/uprobes.h~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/include/asm/uprobes.h
@@ -4,7 +4,7 @@
#define _ASM_RISCV_UPROBES_H
#include <asm/probes.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/bug.h>
#define MAX_UINSN_BYTES 8
--- a/arch/riscv/kernel/alternative.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/alternative.c
@@ -18,7 +18,7 @@
#include <asm/sbi.h>
#include <asm/csr.h>
#include <asm/insn.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
struct cpu_manufacturer_info_t {
unsigned long vendor_id;
--- a/arch/riscv/kernel/cpufeature.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/cpufeature.c
@@ -20,7 +20,8 @@
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
#include <asm/hwcap.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
+#include <asm/hwprobe.h>
#include <asm/processor.h>
#include <asm/sbi.h>
#include <asm/vector.h>
--- a/arch/riscv/kernel/ftrace.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/ftrace.c
@@ -10,7 +10,7 @@
#include <linux/memory.h>
#include <linux/stop_machine.h>
#include <asm/cacheflush.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#ifdef CONFIG_DYNAMIC_FTRACE
void ftrace_arch_code_modify_prepare(void) __acquires(&text_mutex)
--- a/arch/riscv/kernel/jump_label.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/jump_label.c
@@ -10,7 +10,7 @@
#include <linux/mutex.h>
#include <asm/bug.h>
#include <asm/cacheflush.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#define RISCV_INSN_NOP 0x00000013U
#define RISCV_INSN_JAL 0x0000006fU
--- a/arch/riscv/kernel/patch.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/patch.c
@@ -13,7 +13,7 @@
#include <asm/cacheflush.h>
#include <asm/fixmap.h>
#include <asm/ftrace.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/sections.h>
struct patch_insn {
--- a/arch/riscv/kernel/probes/kprobes.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/kernel/probes/kprobes.c
@@ -12,7 +12,7 @@
#include <asm/sections.h>
#include <asm/cacheflush.h>
#include <asm/bug.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include "decode-insn.h"
--- a/arch/riscv/net/bpf_jit_comp64.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/net/bpf_jit_comp64.c
@@ -10,7 +10,7 @@
#include <linux/filter.h>
#include <linux/memory.h>
#include <linux/stop_machine.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/cfi.h>
#include <asm/percpu.h>
#include "bpf_jit.h"
--- a/arch/riscv/net/bpf_jit_core.c~asm-generic-introduce-text-patchingh
+++ a/arch/riscv/net/bpf_jit_core.c
@@ -9,7 +9,7 @@
#include <linux/bpf.h>
#include <linux/filter.h>
#include <linux/memory.h>
-#include <asm/patch.h>
+#include <asm/text-patching.h>
#include <asm/cfi.h>
#include "bpf_jit.h"
--- a/arch/sh/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/sh/include/asm/Kbuild
@@ -3,3 +3,4 @@ generated-y += syscall_table.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += parport.h
+generic-y += text-patching.h
--- a/arch/sparc/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/sparc/include/asm/Kbuild
@@ -4,3 +4,4 @@ generated-y += syscall_table_64.h
generic-y += agp.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
+generic-y += text-patching.h
--- a/arch/um/kernel/um_arch.c~asm-generic-introduce-text-patchingh
+++ a/arch/um/kernel/um_arch.c
@@ -468,6 +468,11 @@ void *text_poke(void *addr, const void *
return memcpy(addr, opcode, len);
}
+void *text_poke_copy(void *addr, const void *opcode, size_t len)
+{
+ return text_poke(addr, opcode, len);
+}
+
void text_poke_sync(void)
{
}
--- a/arch/x86/include/asm/text-patching.h~asm-generic-introduce-text-patchingh
+++ a/arch/x86/include/asm/text-patching.h
@@ -35,6 +35,7 @@ extern void *text_poke(void *addr, const
extern void text_poke_sync(void);
extern void *text_poke_kgdb(void *addr, const void *opcode, size_t len);
extern void *text_poke_copy(void *addr, const void *opcode, size_t len);
+#define text_poke_copy text_poke_copy
extern void *text_poke_copy_locked(void *addr, const void *opcode, size_t len, bool core_ok);
extern void *text_poke_set(void *addr, int c, size_t len);
extern int poke_int3_handler(struct pt_regs *regs);
--- a/arch/xtensa/include/asm/Kbuild~asm-generic-introduce-text-patchingh
+++ a/arch/xtensa/include/asm/Kbuild
@@ -8,3 +8,4 @@ generic-y += parport.h
generic-y += qrwlock.h
generic-y += qspinlock.h
generic-y += user.h
+generic-y += text-patching.h
diff --git a/include/asm-generic/text-patching.h a/include/asm-generic/text-patching.h
new file mode 100644
--- /dev/null
+++ a/include/asm-generic/text-patching.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_TEXT_PATCHING_H
+#define _ASM_GENERIC_TEXT_PATCHING_H
+
+#endif /* _ASM_GENERIC_TEXT_PATCHING_H */
diff --git a/include/linux/text-patching.h a/include/linux/text-patching.h
new file mode 100644
--- /dev/null
+++ a/include/linux/text-patching.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_TEXT_PATCHING_H
+#define _LINUX_TEXT_PATCHING_H
+
+#include <asm/text-patching.h>
+
+#ifndef text_poke_copy
+static inline void *text_poke_copy(void *dst, const void *src, size_t len)
+{
+ return memcpy(dst, src, len);
+}
+#define text_poke_copy text_poke_copy
+#endif
+
+#endif /* _LINUX_TEXT_PATCHING_H */
_
Patches currently in -mm which might be from rppt@xxxxxxxxxx are
mm-vmalloc-group-declarations-depending-on-config_mmu-together.patch
mm-vmalloc-dont-account-for-number-of-nodes-for-huge_vmap-allocations.patch
asm-generic-introduce-text-patchingh.patch
module-prepare-to-handle-rox-allocations-for-text.patch
arch-introduce-set_direct_map_valid_noflush.patch
x86-module-perpare-module-loading-for-rox-allocations-of-text.patch
execmem-add-support-for-cache-of-large-rox-pages.patch
x86-module-enable-rox-caches-for-module-text.patch
