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From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Richard Kuo <rkuo@codeaurora.org>,
	Michal Simek <monstr@monstr.eu>,
	Ralf Baechle <ralf@linux-mips.org>,
	Paul Burton <paul.burton@mips.com>,
	James Hogan <jhogan@kernel.org>, Ley Foon Tan <lftan@altera.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@davemloft.net>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, Jason Wessel <jason.wessel@windriver.com>,
	Daniel Thompson <daniel.thompson@linaro.org>,
	"GitAuthor: Christophe Leroy" <christophe.leroy@c-s.fr>,
	Douglas Anderson <dianders@chromium.org>,
	Randy Dunlap <rdunlap@infradead.org>,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	uclinux-h8-devel@lists.sourceforge.jp,
	linux-hexagon@vger.kernel.org, linux-mips@vger.kernel.org,
	nios2-dev@lists.rocketboards.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
	kgdb-bugreport@lists.sourceforge.net
Subject: [PATCH 1/2] mips/kgdb: prepare arch_kgdb_ops for constness
Date: Wed,  5 Dec 2018 04:41:09 +0000 (UTC)	[thread overview]
Message-ID: <75bbcdd1e9277d66ebb06e349dda304bd01ce761.1543957194.git.christophe.leroy@c-s.fr> (raw)

MIPS is the only architecture modifying arch_kgdb_ops during init.
This patch makes the init static, so that it can be changed to
const in following patch, as recommended by checkpatch.pl

Suggested-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/mips/kernel/kgdb.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index eb6c0d582626..31eff1bec577 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -394,18 +394,16 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
 	return -1;
 }
 
-struct kgdb_arch arch_kgdb_ops;
+struct kgdb_arch arch_kgdb_ops = {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	.gdb_bpt_instr = { spec_op << 2, 0x00, 0x00, break_op },
+#else
+	.gdb_bpt_instr = { break_op, 0x00, 0x00, spec_op << 2 },
+#endif
+};
 
 int kgdb_arch_init(void)
 {
-	union mips_instruction insn = {
-		.r_format = {
-			.opcode = spec_op,
-			.func	= break_op,
-		}
-	};
-	memcpy(arch_kgdb_ops.gdb_bpt_instr, insn.byte, BREAK_INSTR_SIZE);
-
 	register_die_notifier(&kgdb_notifier);
 
 	return 0;
-- 
2.13.3


             reply	other threads:[~2018-12-05  4:41 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-05  4:41 Christophe Leroy [this message]
2018-12-05  4:41 ` [PATCH 2/2] kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops Christophe Leroy
2018-12-06 14:07   ` Daniel Thompson
2018-12-06 20:15     ` Christophe LEROY
2018-12-06 14:09 ` [PATCH 1/2] mips/kgdb: prepare arch_kgdb_ops for constness Daniel Thompson
2018-12-06 18:05   ` Paul Burton
2018-12-06 20:14   ` Christophe LEROY

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