[PATCH v2 3/5] riscv: misaligned: use get_user() instead of __get_user()

From: "Clément Léger" <cleger@rivosinc.com>
To: linux-doc@vger.kernel.org (open list:DOCUMENTATION),
	linux-kernel@vger.kernel.org (open list),
	linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE),
	linux-kselftest@vger.kernel.org (open list:KERNEL SELFTEST
	FRAMEWORK)
Cc: "Clément Léger" <cleger@rivosinc.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Alexandre Ghiti" <alex@ghiti.fr>,
	"Shuah Khan" <shuah@kernel.org>,
	"Andrew Jones" <ajones@ventanamicro.com>,
	"Samuel Holland" <samuel.holland@sifive.com>,
	"Alexandre Ghiti" <alexghiti@rivosinc.com>
Subject: [PATCH v2 3/5] riscv: misaligned: use get_user() instead of __get_user()
Date: Tue, 22 Apr 2025 18:23:10 +0200	[thread overview]
Message-ID: <20250422162324.956065-4-cleger@rivosinc.com> (raw)
In-Reply-To: <20250422162324.956065-1-cleger@rivosinc.com>

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@rivosinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.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 4354c87c0376..97c674d7d34f 100644
--- a/arch/riscv/kernel/traps_misaligned.c
+++ b/arch/riscv/kernel/traps_misaligned.c
@@ -268,7 +268,7 @@ 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;				\
-- 
2.49.0


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
