linux-kernel - [PATCH] arc: ptrace: hard-code "arc" instead of UTS

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Message-Id: <20200413013240.8659-1-masahiroy@kernel.org>
Date:   Mon, 13 Apr 2020 10:32:40 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Vineet Gupta <vgupta@...opsys.com>,
        linux-snps-arc@...ts.infradead.org
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Allison Randal <allison@...utok.net>,
        Enrico Weigelt <info@...ux.net>,
        Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arc: ptrace: hard-code "arc" instead of UTS_MACHINE

ARC uses the UTS_MACHINE defined in the top Makefile as follows:

  UTS_MACHINE     := $(ARCH)

We know it is "arc" when we are building the kernel for ARC.
Hard-code user_regset_view::name, like many other architectures do.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 arch/arc/kernel/Makefile | 3 ---
 arch/arc/kernel/ptrace.c | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arc/kernel/Makefile b/arch/arc/kernel/Makefile
index 75539670431a..8c4fc4b54c14 100644
--- a/arch/arc/kernel/Makefile
+++ b/arch/arc/kernel/Makefile
@@ -3,9 +3,6 @@
 # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 #
 
-# Pass UTS_MACHINE for user_regset definition
-CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
-
 obj-y	:= arcksyms.o setup.o irq.o reset.o ptrace.o process.o devtree.o
 obj-y	+= signal.o traps.o sys.o troubleshoot.o stacktrace.o disasm.o
 obj-$(CONFIG_ISA_ARCOMPACT)		+= entry-compact.o intc-compact.o
diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c
index d5f3fcf273b5..f49a054a1016 100644
--- a/arch/arc/kernel/ptrace.c
+++ b/arch/arc/kernel/ptrace.c
@@ -253,7 +253,7 @@ static const struct user_regset arc_regsets[] = {
 };
 
 static const struct user_regset_view user_arc_view = {
-	.name		= UTS_MACHINE,
+	.name		= "arc",
 	.e_machine	= EM_ARC_INUSE,
 	.regsets	= arc_regsets,
 	.n		= ARRAY_SIZE(arc_regsets)
-- 
2.25.1