Fix clippy errors

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>

Author: vadorovsky

src/bin/bpf-linker.rs

@@ -135,7 +135,13 @@ struct CommandLine {
     #[clap(long, value_name = "symbols", use_delimiter = true, multiple = true)]
     export: Vec<String>,
 
-    #[clap(short = 'l', long = "lib", use_delimiter = true, multiple = true, hidden = true)]
+    #[clap(
+        short = 'l',
+        long = "lib",
+        use_delimiter = true,
+        multiple = true,
+        hidden = true
+    )]
     _lib: Option<String>,
     #[clap(long = "debug", hidden = true)]
     _debug: bool,

src/linker.rs

@@ -437,7 +437,7 @@ impl Linker {
     fn write_ir(&mut self, output: &CStr) -> Result<(), LinkerError> {
         info!("writing IR to {:?}", output);
 
-        unsafe { llvm::write_ir(self.module, &output) }.map_err(LinkerError::WriteIRError)
+        unsafe { llvm::write_ir(self.module, output) }.map_err(LinkerError::WriteIRError)
     }
 
     fn emit(&mut self, output: &CStr, output_type: LLVMCodeGenFileType) -> Result<(), LinkerError> {

src/llvm/mod.rs

@@ -35,7 +35,7 @@ pub unsafe fn init<T: AsRef<str>>(args: &[T], overview: &str) {
     LLVMInitializeBPFAsmPrinter();
     LLVMInitializeBPFDisassembler();
 
-    parse_command_line_options(&args, overview);
+    parse_command_line_options(args, overview);
 }
 
 unsafe fn parse_command_line_options<T: AsRef<str>>(args: &[T], overview: &str) {
@@ -138,7 +138,7 @@ pub unsafe fn target_from_triple(triple: &CStr) -> Result<LLVMTargetRef, String>
 
 pub unsafe fn target_from_module(module: LLVMModuleRef) -> Result<LLVMTargetRef, String> {
     let triple = LLVMGetTarget(module);
-    target_from_triple(&CStr::from_ptr(triple))
+    target_from_triple(CStr::from_ptr(triple))
 }
 
 pub unsafe fn create_target_machine(