rust: str: implement PartialEq for BStr

Implement `PartialEq` for `BStr` by comparing underlying byte slices.

Reviewed-by: Alice Ryhl <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Reviewed-by: Daniel Almeida <[email protected]>
Tested-by: Daniel Almeida <[email protected]>
Signed-off-by: Andreas Hindborg <[email protected]>
Reviewed-by: Fiona Behrens <[email protected]>
Tested-by: Daniel Gomez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>

Author: Andreas Hindborg

rust/kernel/str.rs

@@ -108,6 +108,12 @@ impl Deref for BStr {
     }
 }
 
+impl PartialEq for BStr {
+    fn eq(&self, other: &Self) -> bool {
+        self.deref().eq(other.deref())
+    }
+}
+
 /// Creates a new [`BStr`] from a string literal.
 ///
 /// `b_str!` converts the supplied string literal to byte string, so non-ASCII