From 99295c9ae8f40a1be7fd23de9171f820b6a42db6 Mon Sep 17 00:00:00 2001
From: Meco Jianting Man <920369182@qq.com>
Date: Wed, 14 Apr 2021 22:46:46 +0800
Subject: [PATCH] simplify and beautify portBYTE_ALIGNMENT (#309)

---
 include/portable.h | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/include/portable.h b/include/portable.h
index 3768e2cd8..774d3b5b6 100644
--- a/include/portable.h
+++ b/include/portable.h
@@ -53,29 +53,17 @@
 
 #if portBYTE_ALIGNMENT == 32
     #define portBYTE_ALIGNMENT_MASK    ( 0x001f )
-#endif
-
-#if portBYTE_ALIGNMENT == 16
+#elif portBYTE_ALIGNMENT == 16
     #define portBYTE_ALIGNMENT_MASK    ( 0x000f )
-#endif
-
-#if portBYTE_ALIGNMENT == 8
+#elif portBYTE_ALIGNMENT == 8
     #define portBYTE_ALIGNMENT_MASK    ( 0x0007 )
-#endif
-
-#if portBYTE_ALIGNMENT == 4
+#elif portBYTE_ALIGNMENT == 4
     #define portBYTE_ALIGNMENT_MASK    ( 0x0003 )
-#endif
-
-#if portBYTE_ALIGNMENT == 2
+#elif portBYTE_ALIGNMENT == 2
     #define portBYTE_ALIGNMENT_MASK    ( 0x0001 )
-#endif
-
-#if portBYTE_ALIGNMENT == 1
+#elif portBYTE_ALIGNMENT == 1
     #define portBYTE_ALIGNMENT_MASK    ( 0x0000 )
-#endif
-
-#ifndef portBYTE_ALIGNMENT_MASK
+#else
     #error "Invalid portBYTE_ALIGNMENT definition"
 #endif