diff --git a/common/src/dma.rs b/common/src/dma.rs
index fef60d04e0..fbeb74bf96 100644
--- a/common/src/dma.rs
+++ b/common/src/dma.rs
@@ -3,7 +3,7 @@ use std::ops::{Deref, DerefMut};
 use std::ptr;
 
 use libredox::call::MmapArgs;
-use libredox::{flag, error::Result, Fd};
+use libredox::{error::Result, flag, Fd};
 use syscall::PAGE_SIZE;
 
 use crate::MemoryType;
@@ -34,7 +34,7 @@ fn alloc_and_map(length: usize) -> Result<(usize, *mut ())> {
         let fd = phys_contiguous_fd()?;
         let virt = libredox::call::mmap(MmapArgs {
             fd: fd.raw(),
-            offset: 0,  // ignored
+            offset: 0,                   // ignored
             addr: core::ptr::null_mut(), // ignored
             length,
             flags: flag::MAP_PRIVATE,
@@ -42,7 +42,11 @@ fn alloc_and_map(length: usize) -> Result<(usize, *mut ())> {
         })?;
         let phys = syscall::virttophys(virt as usize)?;
         for i in 1..length.div_ceil(PAGE_SIZE) {
-            debug_assert_eq!(syscall::virttophys(virt as usize + i * PAGE_SIZE), Ok(phys + i * PAGE_SIZE), "NOT CONTIGUOUS");
+            debug_assert_eq!(
+                syscall::virttophys(virt as usize + i * PAGE_SIZE),
+                Ok(phys + i * PAGE_SIZE),
+                "NOT CONTIGUOUS"
+            );
         }
         Ok((phys, virt as *mut ()))
     }
diff --git a/common/src/lib.rs b/common/src/lib.rs
index c96e3e8c4e..7403ce4793 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -1,8 +1,8 @@
 #![feature(int_roundings)]
 
 use libredox::call::MmapArgs;
-use libredox::{Fd, error::*, errno::EINVAL};
 use libredox::flag::{self, O_CLOEXEC, O_RDONLY, O_RDWR, O_WRONLY};
+use libredox::{errno::EINVAL, error::*, Fd};
 use syscall::PAGE_SIZE;
 
 pub mod dma;
diff --git a/common/src/sgl.rs b/common/src/sgl.rs
index 236ab85a05..cdd043415c 100644
--- a/common/src/sgl.rs
+++ b/common/src/sgl.rs
@@ -35,7 +35,8 @@ impl Sgl {
                 offset: 0,
                 fd: !0,
                 addr: core::ptr::null_mut(),
-            })?.cast::<u8>();
+            })?
+            .cast::<u8>();
 
             let mut this = Self {
                 virt,
@@ -51,7 +52,9 @@ impl Sgl {
 
             let mut offset = 0;
             while offset < unaligned_length.get() {
-                let chunk_length = (aligned_length - offset).min(MAX_ALLOC_SIZE).next_power_of_two();
+                let chunk_length = (aligned_length - offset)
+                    .min(MAX_ALLOC_SIZE)
+                    .next_power_of_two();
                 libredox::call::mmap(MmapArgs {
                     addr: virt.add(offset).cast(),
                     flags: MAP_PRIVATE | (MAP_FIXED.bits() as u32),
@@ -62,7 +65,12 @@ impl Sgl {
                     offset: 0,
                 })?;
                 let phys = syscall::virttophys(virt as usize + offset)?;
-                this.chunks.push(Chunk { offset, phys, length: (unaligned_length.get() - offset).min(chunk_length), virt: virt.add(offset) });
+                this.chunks.push(Chunk {
+                    offset,
+                    phys,
+                    length: (unaligned_length.get() - offset).min(chunk_length),
+                    virt: virt.add(offset),
+                });
                 offset += chunk_length;
             }
 
diff --git a/fmt.sh b/fmt.sh
index f62b954766..597ef30965 100755
--- a/fmt.sh
+++ b/fmt.sh
@@ -16,7 +16,8 @@ function fmt() {
     done
 }
 
-fmt graphics/bgad \
+fmt common \
+    graphics/bgad \
     graphics/fbcond \
     graphics/vesad \
     graphics/virtio-gpud \