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([2a01:e0a:e17:9700:16d2:7456:6634:9626]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39eae9780a0sm11003166f8f.50.2025.04.14.05.35.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Apr 2025 05:35:55 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= 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: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Shuah Khan , Andrew Jones , Samuel Holland Subject: [PATCH 3/5] riscv: misaligned: use get_user() instead of __get_user() Date: Mon, 14 Apr 2025 14:34:43 +0200 Message-ID: <20250414123543.1615478-4-cleger@rivosinc.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250414123543.1615478-1-cleger@rivosinc.com> References: <20250414123543.1615478-1-cleger@rivosinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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: Cl=C3=A9ment L=C3=A9ger Reviewed-by: Alexandre Ghiti --- 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 =3D __get_user(insn, (type __user *) insn_addr); \ + __ret =3D get_user(insn, (type __user *) insn_addr); \ } else { \ insn =3D *(type *)insn_addr; \ __ret =3D 0; \ --=20 2.49.0