linux-kernel - [PATCH fixes 1/4] MIPS: mipsmtregs: Fix target register for MFTC0

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Message-Id: <20240616-mips-mt-fixes-v1-1-83913e0e60fc@flygoat.com>
Date: Sun, 16 Jun 2024 14:25:02 +0100
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Jiaxun Yang <jiaxun.yang@...goat.com>, stable@...r.kernel.org
Subject: [PATCH fixes 1/4] MIPS: mipsmtregs: Fix target register for MFTC0

Target register of mftc0 should be __res instead of $1, this is
a leftover from old .insn code.

Fixes: dd6d29a61489 ("MIPS: Implement microMIPS MT ASE helpers")
Cc: stable@...r.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/include/asm/mipsmtregs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/mipsmtregs.h b/arch/mips/include/asm/mipsmtregs.h
index 30e86861c206..b1ee3c48e84b 100644
--- a/arch/mips/include/asm/mipsmtregs.h
+++ b/arch/mips/include/asm/mipsmtregs.h
@@ -322,7 +322,7 @@ static inline void ehb(void)
 	"	.set	push				\n"	\
 	"	.set	"MIPS_ISA_LEVEL"		\n"	\
 	_ASM_SET_MFTC0							\
-	"	mftc0	$1, " #rt ", " #sel "		\n"	\
+	"	mftc0	%0, " #rt ", " #sel "		\n"	\
 	_ASM_UNSET_MFTC0						\
 	"	.set	pop				\n"	\
 	: "=r" (__res));						\

-- 
2.43.0