Messages in this thread Patch in this message | | | From | Zhen Lei <> | Subject | [PATCH v2 1/2] ARM: Fix some check warnings of tool sparse | Date | Mon, 10 Oct 2022 17:53:45 +0800 |
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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 <thunder.leizhen@huawei.com> --- 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
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