chore: fix clippy

Author: hack3ric

src/kernel/linux/mod.rs

@@ -59,7 +59,7 @@ impl Kernel for Linux {
       .collect::<Result<Vec<_>, _>>()?;
     let rules = (0..total).map(move |i| {
       (base.iter())
-        .flat_map(|(x, v)| x[(x.len() == 1).then_some(0).unwrap_or_else(|| i / v % x.len())].iter())
+        .flat_map(|(x, v)| x[if x.len() == 1 { 0 } else { i / v % x.len() }].iter())
         .cloned()
         .collect::<Vec<_>>()
     });

src/kernel/linux/nft.rs

@@ -229,9 +229,11 @@ impl Component {
         )]]
       }
       PacketLen(ops) => {
-        let ops = (afi == Afi::Ipv4)
-          .then(|| Cow::Borrowed(ops))
-          .unwrap_or_else(|| Cow::Owned(ops.with_offset(-40)));
+        let ops = if afi == Afi::Ipv4 {
+          Cow::Borrowed(ops)
+        } else {
+          Cow::Owned(ops.with_offset(-40))
+        };
         range_stmt_branch(make_payload_field(ip_ver, "length"), &ops, 0xffff)?
       }
       Dscp(ops) => range_stmt_branch(make_payload_field(ip_ver, "dscp"), ops, 0x3f)?,
@@ -248,12 +250,16 @@ impl Component {
         let mut iter = new_set.into_iter().peekable();
         let mut branch = StatementBranch::new();
 
-        let frag_off = (afi == Afi::Ipv4)
-          .then(|| make_payload_field("ip", "frag-off"))
-          .unwrap_or_else(|| make_exthdr("frag", "frag-off", 0));
-        let mf = (afi == Afi::Ipv4)
-          .then(|| make_payload_raw(expr::PayloadBase::NH, 18, 1))
-          .unwrap_or_else(|| make_exthdr("frag", "more-fragments", 0));
+        let frag_off = if afi == Afi::Ipv4 {
+          make_payload_field("ip", "frag-off")
+        } else {
+          make_exthdr("frag", "frag-off", 0)
+        };
+        let mf = if afi == Afi::Ipv4 {
+          make_payload_raw(expr::PayloadBase::NH, 18, 1)
+        } else {
+          make_exthdr("frag", "more-fragments", 0)
+        };
 
         // DF (IPv4)
         if let Some(0b0001) = iter.peek() {