From 648247592c9429e80bc6236bfbc3e33d6c098f4c Mon Sep 17 00:00:00 2001
From: Akshai M <akshai.kannan@gmail.com>
Date: Thu, 14 May 2020 16:31:28 +0530
Subject: [PATCH] gnrc/tcp : Move GNRC_TCP_RCV_BUFFERS to 'CONFIG_'

---
 sys/include/net/gnrc/tcp.h                         | 2 +-
 sys/include/net/gnrc/tcp/config.h                  | 4 ++--
 sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c | 6 +++---
 sys/net/gnrc/transport_layer/tcp/internal/rcvbuf.h | 2 +-
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/sys/include/net/gnrc/tcp.h b/sys/include/net/gnrc/tcp.h
index dfaf53e3aa..d44412e41c 100644
--- a/sys/include/net/gnrc/tcp.h
+++ b/sys/include/net/gnrc/tcp.h
@@ -150,7 +150,7 @@ int gnrc_tcp_open_active(gnrc_tcp_tcb_t *tcb, const gnrc_tcp_ep_t *remote,
  *                    or the address in @p local is invalid.
  * @return   -EISCONN if TCB is already in use.
  * @return   -ENOMEM if the receive buffer for the TCB could not be allocated.
- *            Hint: Increase "GNRC_TCP_RCV_BUFFERS".
+ *            Hint: Increase "CONFIG_GNRC_TCP_RCV_BUFFERS".
  */
 int gnrc_tcp_open_passive(gnrc_tcp_tcb_t *tcb, const gnrc_tcp_ep_t *local);
 
diff --git a/sys/include/net/gnrc/tcp/config.h b/sys/include/net/gnrc/tcp/config.h
index c4aa11beb6..b849bdd829 100644
--- a/sys/include/net/gnrc/tcp/config.h
+++ b/sys/include/net/gnrc/tcp/config.h
@@ -96,8 +96,8 @@ extern "C" {
  * This value determines how many parallel TCP connections can be active at the
  * same time.
  */
-#ifndef GNRC_TCP_RCV_BUFFERS
-#define GNRC_TCP_RCV_BUFFERS (1U)
+#ifndef CONFIG_GNRC_TCP_RCV_BUFFERS
+#define CONFIG_GNRC_TCP_RCV_BUFFERS (1U)
 #endif
 
 /**
diff --git a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
index 8058f4687e..e06fc5de0d 100644
--- a/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
+++ b/sys/net/gnrc/transport_layer/tcp/gnrc_tcp_rcvbuf.c
@@ -33,7 +33,7 @@ void _rcvbuf_init(void)
 {
     DEBUG("gnrc_tcp_rcvbuf.c : _rcvbuf_init() : entry\n");
     mutex_init(&(_static_buf.lock));
-    for (size_t i = 0; i < GNRC_TCP_RCV_BUFFERS; ++i) {
+    for (size_t i = 0; i < CONFIG_GNRC_TCP_RCV_BUFFERS; ++i) {
         _static_buf.entries[i].used = 0;
     }
 }
@@ -49,7 +49,7 @@ static void* _rcvbuf_alloc(void)
     void *result = NULL;
     DEBUG("gnrc_tcp_rcvbuf.c : _rcvbuf_alloc() : Entry\n");
     mutex_lock(&(_static_buf.lock));
-    for (size_t i = 0; i < GNRC_TCP_RCV_BUFFERS; ++i) {
+    for (size_t i = 0; i < CONFIG_GNRC_TCP_RCV_BUFFERS; ++i) {
         if (_static_buf.entries[i].used == 0) {
             _static_buf.entries[i].used = 1;
             result = (void *)(_static_buf.entries[i].buffer);
@@ -69,7 +69,7 @@ static void _rcvbuf_free(void * const buf)
 {
     DEBUG("gnrc_tcp_rcvbuf.c : _rcvbuf_free() : Entry\n");
     mutex_lock(&(_static_buf.lock));
-    for (size_t i = 0; i < GNRC_TCP_RCV_BUFFERS; ++i) {
+    for (size_t i = 0; i < CONFIG_GNRC_TCP_RCV_BUFFERS; ++i) {
         if ((_static_buf.entries[i].used == 1) && (buf == _static_buf.entries[i].buffer)) {
             _static_buf.entries[i].used = 0;
         }
diff --git a/sys/net/gnrc/transport_layer/tcp/internal/rcvbuf.h b/sys/net/gnrc/transport_layer/tcp/internal/rcvbuf.h
index 778726b61c..fe6a24da32 100644
--- a/sys/net/gnrc/transport_layer/tcp/internal/rcvbuf.h
+++ b/sys/net/gnrc/transport_layer/tcp/internal/rcvbuf.h
@@ -42,7 +42,7 @@ typedef struct rcvbuf_entry {
  */
 typedef struct rcvbuf {
     mutex_t lock;                                 /**< Lock for allocation synchronization */
-    rcvbuf_entry_t entries[GNRC_TCP_RCV_BUFFERS]; /**< Maintained receive buffers */
+    rcvbuf_entry_t entries[CONFIG_GNRC_TCP_RCV_BUFFERS]; /**< Maintained receive buffers */
 } rcvbuf_t;
 
 /**