From 6f28a874b80f8206a0073e2295eec20fb778ccc6 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 7 Jul 2017 13:52:25 +0800
Subject: [PATCH] pbuf: Simplify pbuf_alloc a bit

No need to have additional if statement for PBUF_REF/PBUF_ROM.
It can be merged to the existing swtich(type) cases.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 src/core/pbuf.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/core/pbuf.c b/src/core/pbuf.c
index a263864c..4e21d47e 100644
--- a/src/core/pbuf.c
+++ b/src/core/pbuf.c
@@ -224,11 +224,10 @@ pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
   u16_t offset = (u16_t)layer;
   LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F")\n", length));
 
-  if ((type == PBUF_REF) || (type == PBUF_ROM)) {
-    return pbuf_alloc_reference(NULL, length, type);
-  }
-
   switch (type) {
+  case PBUF_REF:
+  case PBUF_ROM:
+    return pbuf_alloc_reference(NULL, length, type);
   case PBUF_POOL:
     {
       struct pbuf *q, *last;