safe_ptr 108 arch/arm/include/asm/uaccess.h void __user *safe_ptr = (void __user *)ptr; safe_ptr 118 arch/arm/include/asm/uaccess.h : "+r" (safe_ptr), "=&r" (tmp) safe_ptr 123 arch/arm/include/asm/uaccess.h return safe_ptr; safe_ptr 233 arch/arm64/include/asm/uaccess.h void __user *safe_ptr; safe_ptr 238 arch/arm64/include/asm/uaccess.h : "=&r" (safe_ptr) safe_ptr 244 arch/arm64/include/asm/uaccess.h return safe_ptr;