riscv64: fix clippy

Author: zyuiop

src/arch/riscv64/kernel/mod.rs

@@ -15,7 +15,6 @@ use alloc::vec::Vec;
 use core::ptr;
 use core::sync::atomic::{AtomicPtr, AtomicU32, AtomicU64, Ordering};
 
-use free_list::PageLayout;
 use memory_addresses::PhysAddr;
 use riscv::register::sstatus;
 
@@ -25,7 +24,6 @@ use crate::arch::riscv64::kernel::processor::lsb;
 use crate::config::KERNEL_STACK_SIZE;
 use crate::env;
 use crate::init_cell::InitCell;
-use crate::mm::{FrameAlloc, PageRangeAllocator};
 use crate::mm::stack_alloc::allocate_stack;
 
 // Used to store information about available harts. The index of the hart in the vector

src/arch/riscv64/mm/paging.rs

@@ -1,6 +1,6 @@
 use core::marker::PhantomData;
 use core::ptr;
-use core::sync::atomic::{AtomicPtr, AtomicU64, AtomicUsize, Ordering};
+use core::sync::atomic::{AtomicUsize, Ordering};
 use align_address::Align;
 use free_list::PageLayout;
 use hermit_sync::SpinMutex;
@@ -662,7 +662,6 @@ pub unsafe fn enable_page_table() {
 		asm::sfence_vma_all();
 	}
 
-	#[cfg(feature = "smp")]
 	SATP_VALUE.store(
 		((mode as usize) << 60) | (asid << 44) | ppn,
 		Ordering::Relaxed