linux-kernel - [PATCH 16/23] riscv: ptrace: Use USER_REGSET_NOTE

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Message-Id: <20250701135616.29630-17-Dave.Martin@arm.com>
Date: Tue,  1 Jul 2025 14:56:09 +0100
From: Dave Martin <Dave.Martin@....com>
To: linux-kernel@...r.kernel.org
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Oleg Nesterov <oleg@...hat.com>,
	Kees Cook <kees@...nel.org>,
	Akihiko Odaki <akihiko.odaki@...nix.com>,
	linux-riscv@...ts.infradead.org
Subject: [PATCH 16/23] riscv: ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names

Instead of having the core code guess the note name for each regset,
use USER_REGSET_NOTE_TYPE() to pick the correct name from elf.h.

Signed-off-by: Dave Martin <Dave.Martin@....com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>
Cc: Palmer Dabbelt <palmer@...belt.com>
Cc: Albert Ou <aou@...s.berkeley.edu>
Cc: Alexandre Ghiti <alex@...ti.fr>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Kees Cook <kees@...nel.org>
Cc: Akihiko Odaki <akihiko.odaki@...nix.com>
Cc: linux-riscv@...ts.infradead.org
---
 arch/riscv/kernel/ptrace.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c
index ea67e9fb7a58..8e86305831ea 100644
--- a/arch/riscv/kernel/ptrace.c
+++ b/arch/riscv/kernel/ptrace.c
@@ -186,7 +186,7 @@ static int tagged_addr_ctrl_set(struct task_struct *target,
 
 static const struct user_regset riscv_user_regset[] = {
 	[REGSET_X] = {
-		.core_note_type = NT_PRSTATUS,
+		USER_REGSET_NOTE_TYPE(PRSTATUS),
 		.n = ELF_NGREG,
 		.size = sizeof(elf_greg_t),
 		.align = sizeof(elf_greg_t),
@@ -195,7 +195,7 @@ static const struct user_regset riscv_user_regset[] = {
 	},
 #ifdef CONFIG_FPU
 	[REGSET_F] = {
-		.core_note_type = NT_PRFPREG,
+		USER_REGSET_NOTE_TYPE(PRFPREG),
 		.n = ELF_NFPREG,
 		.size = sizeof(elf_fpreg_t),
 		.align = sizeof(elf_fpreg_t),
@@ -205,7 +205,7 @@ static const struct user_regset riscv_user_regset[] = {
 #endif
 #ifdef CONFIG_RISCV_ISA_V
 	[REGSET_V] = {
-		.core_note_type = NT_RISCV_VECTOR,
+		USER_REGSET_NOTE_TYPE(RISCV_VECTOR),
 		.align = 16,
 		.n = ((32 * RISCV_MAX_VLENB) +
 		      sizeof(struct __riscv_v_regset_state)) / sizeof(__u32),
@@ -216,7 +216,7 @@ static const struct user_regset riscv_user_regset[] = {
 #endif
 #ifdef CONFIG_RISCV_ISA_SUPM
 	[REGSET_TAGGED_ADDR_CTRL] = {
-		.core_note_type = NT_RISCV_TAGGED_ADDR_CTRL,
+		USER_REGSET_NOTE_TYPE(RISCV_TAGGED_ADDR_CTRL),
 		.n = 1,
 		.size = sizeof(long),
 		.align = sizeof(long),
@@ -380,7 +380,7 @@ static int compat_riscv_gpr_set(struct task_struct *target,
 
 static const struct user_regset compat_riscv_user_regset[] = {
 	[REGSET_X] = {
-		.core_note_type = NT_PRSTATUS,
+		USER_REGSET_NOTE_TYPE(PRSTATUS),
 		.n = ELF_NGREG,
 		.size = sizeof(compat_elf_greg_t),
 		.align = sizeof(compat_elf_greg_t),
@@ -389,7 +389,7 @@ static const struct user_regset compat_riscv_user_regset[] = {
 	},
 #ifdef CONFIG_FPU
 	[REGSET_F] = {
-		.core_note_type = NT_PRFPREG,
+		USER_REGSET_NOTE_TYPE(PRFPREG),
 		.n = ELF_NFPREG,
 		.size = sizeof(elf_fpreg_t),
 		.align = sizeof(elf_fpreg_t),
-- 
2.34.1