Method find_utf8

crates/kernel_cmdline/src/bytes.rs:163–173

Locate a kernel argument with the given key name. Returns an error if a parameter with the given key name is found, but the value is not valid UTF-8. Otherwise, returns the first parameter matching the given key, or `None` if not found. Key comparison treats dashes and underscores as equivalent.

(
        &'a self,
        key: &T,
    )

    /// or `None` if not found.  Key comparison treats dashes and
    /// underscores as equivalent.
    pub fn find_utf8<T: AsRef<[u8]> + ?Sized>(
        &'a self,
        key: &T,
    ) -> Result<Option<utf8::Parameter<'a>>> {
        let bytes = match self.find(key.as_ref()) {
            Some(p) => p,
            None => return Ok(None),
        };

        Ok(Some(utf8::Parameter::try_from(bytes)?))
    }

    /// Find all kernel arguments starting with the given prefix.
    ///