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Mon, 10 Oct 2022 17:55:00 +0800 From: Zhen Lei To: Russell King , , CC: Zhen Lei Subject: [PATCH v2 1/2] ARM: Fix some check warnings of tool sparse Date: Mon, 10 Oct 2022 17:53:45 +0800 Message-ID: <20221010095346.1957-2-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.37.3.windows.1 In-Reply-To: <20221010095346.1957-1-thunder.leizhen@huawei.com> References: <20221010095346.1957-1-thunder.leizhen@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.178.55] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221010_025508_402297_FCE69727 X-CRM114-Status: GOOD ( 11.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Fix the following warnings: warning: incorrect type in initializer (different address spaces) expected unsigned short [noderef] __user *register __p got unsigned short [usertype] * warning: cast removes address space '__user' of expression Signed-off-by: Zhen Lei --- arch/arm/kernel/traps.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 20b2db6dcd1ced7..34aa80c09c508c1 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -188,9 +188,9 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) } } else { if (thumb) - bad = get_user(val, &((u16 *)addr)[i]); + bad = get_user(val, &((u16 __user *)addr)[i]); else - bad = get_user(val, &((u32 *)addr)[i]); + bad = get_user(val, &((u32 __user *)addr)[i]); } if (!bad) @@ -455,15 +455,15 @@ asmlinkage void do_undefinstr(struct pt_regs *regs) if (processor_mode(regs) == SVC_MODE) { #ifdef CONFIG_THUMB2_KERNEL if (thumb_mode(regs)) { - instr = __mem_to_opcode_thumb16(((u16 *)pc)[0]); + instr = __mem_to_opcode_thumb16(((__force u16 *)pc)[0]); if (is_wide_instruction(instr)) { u16 inst2; - inst2 = __mem_to_opcode_thumb16(((u16 *)pc)[1]); + inst2 = __mem_to_opcode_thumb16(((__force u16 *)pc)[1]); instr = __opcode_thumb32_compose(instr, inst2); } } else #endif - instr = __mem_to_opcode_arm(*(u32 *) pc); + instr = __mem_to_opcode_arm(*(__force u32 *) pc); } else if (thumb_mode(regs)) { if (get_user(instr, (u16 __user *)pc)) goto die_sig; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel