linux-kernel - [PATCH v2 09/15] riscv: misaligned: use get_user() instead of __get

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Message-ID: <20250210213549.1867704-10-cleger@rivosinc.com>
Date: Mon, 10 Feb 2025 22:35:42 +0100
From: Clément Léger <cleger@...osinc.com>
To: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Anup Patel <anup@...infault.org>,
	Atish Patra <atishp@...shpatra.org>,
	Shuah Khan <shuah@...nel.org>,
	Jonathan Corbet <corbet@....net>,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	kvm@...r.kernel.org,
	kvm-riscv@...ts.infradead.org,
	linux-kselftest@...r.kernel.org
Cc: Clément Léger <cleger@...osinc.com>,
	Samuel Holland <samuel.holland@...ive.com>
Subject: [PATCH v2 09/15] riscv: misaligned: use get_user() instead of __get_user()

Now that we can safely handle user memory accesses while in the
misaligned access handlers, use get_user() instead of __get_user() to
have user memory access checks.

Signed-off-by: Clément Léger <cleger@...osinc.com>
---
 arch/riscv/kernel/traps_misaligned.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c
index 1d523cf96ff0..e6685db58bd1 100644
--- a/arch/riscv/kernel/traps_misaligned.c
+++ b/arch/riscv/kernel/traps_misaligned.c
@@ -269,7 +269,7 @@ static unsigned long get_f32_rs(unsigned long insn, u8 fp_reg_offset,
 	int __ret;					\
 							\
 	if (user_mode(regs)) {				\
-		__ret = __get_user(insn, (type __user *) insn_addr); \
+		__ret = get_user(insn, (type __user *) insn_addr); \
 	} else {					\
 		insn = *(type *)insn_addr;		\
 		__ret = 0;				\
-- 
2.47.2