initial buildroot for linux 5.15

package/iperf/0001-Fix-build-with-musl-libc.patch

@@ -0,0 +1,67 @@
+From 6766ab322a9eb8c73f8276be9cdea356eb124de0 Mon Sep 17 00:00:00 2001
+From: Baruch Siach <baruch@tkos.co.il>
+Date: Thu, 11 Nov 2021 07:58:10 +0200
+Subject: [PATCH] Fix build with musl libc
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+musl libc defines its own struct ethhdr that conflicts with the kernel
+define one. The kernel headers provide a way to suppress its struct
+ethhdr. For that to work the libc headers must precede the kernel. Move
+the kernel linux/if_tun.h include below libc net/ethernet.h. That fixes
+the following build failure:
+
+In file included from .../arm-buildroot-linux-musleabihf/sysroot/usr/include/net/ethernet.h:10,
+                 from ../include/headers.h:117,
+                 from Thread.c:72:
+.../arm-buildroot-linux-musleabihf/sysroot/usr/include/netinet/if_ether.h:116:8: error: redefinition of ‘struct ethhdr’
+  116 | struct ethhdr {
+      |        ^~~~~~
+In file included from .../arm-buildroot-linux-musleabihf/sysroot/usr/include/linux/if_tun.h:20,
+                 from ../include/headers.h:110,
+                 from Thread.c:72:
+.../arm-buildroot-linux-musleabihf/sysroot/usr/include/linux/if_ether.h:148:8: note: originally defined here
+  148 | struct ethhdr {
+      |        ^~~~~~
+
+Fixes bug #157.
+
+Signed-off-by: Baruch Siach <baruch@tkos.co.il>
+---
+Upstream status: sent to Robert McMahon <rjmcmahon@rjmcmahon.com>
+
+ include/headers.h | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/include/headers.h b/include/headers.h
+index 00e0ea0dba42..887490475381 100644
+--- a/include/headers.h
++++ b/include/headers.h
+@@ -106,11 +106,6 @@ typedef bool _Bool;
+ #include <net/if.h>
+ #endif
+ 
+-#if ((HAVE_TUNTAP_TAP) || (HAVE_TUNTAP_TUN))
+-#include <linux/if_tun.h>
+-#include <sys/ioctl.h>
+-#endif
+-
+ 
+ // AF_PACKET HEADERS
+ #if defined(HAVE_LINUX_FILTER_H) && defined(HAVE_AF_PACKET)
+@@ -146,6 +141,11 @@ typedef bool _Bool;
+ #define  IPV6HDRLEN 40
+ #endif // HAVE_AF_PACKET
+ 
++#if ((HAVE_TUNTAP_TAP) || (HAVE_TUNTAP_TUN))
++#include <linux/if_tun.h>
++#include <sys/ioctl.h>
++#endif
++
+ #ifdef WIN32
+ 
+ /* Windows config file */
+-- 
+2.33.0
+

package/iperf/Config.in

@@ -0,0 +1,14 @@
+config BR2_PACKAGE_IPERF
+	bool "iperf"
+	depends on BR2_INSTALL_LIBSTDCPP
+	# uses fork()
+	depends on BR2_USE_MMU
+	help
+	  Internet Protocol bandwidth measuring tool for measuring
+	  TCP/UDP performance.
+
+	  https://sourceforge.net/projects/iperf2/
+
+comment "iperf needs a toolchain w/ C++"
+	depends on BR2_USE_MMU
+	depends on !BR2_INSTALL_LIBSTDCPP

package/iperf/iperf.hash

@@ -0,0 +1,6 @@
+# From https://sourceforge.net/projects/iperf2/files/
+sha1  f1b7835eb74094b1a1849faeafe35b7c362f4ab5  iperf-2.1.4.tar.gz
+
+# Locally computed:
+sha256  062b392e87b8e227aca74fef0a99b04fe0382d4518957041b508a56885b4d4f9  iperf-2.1.4.tar.gz
+sha256  5f9f5c4feca3347c3b3c0ada8b16b4e6b698aac4e6f016a24adf61a5915336d1  COPYING

package/iperf/iperf.mk

@@ -0,0 +1,17 @@
+################################################################################
+#
+# iperf
+#
+################################################################################
+
+IPERF_VERSION = 2.1.4
+IPERF_SITE = http://downloads.sourceforge.net/project/iperf2
+IPERF_LICENSE = MIT-like
+IPERF_LICENSE_FILES = COPYING
+IPERF_CPE_ID_VENDOR = iperf2_project
+IPERF_CPE_ID_PRODUCT = iperf2
+
+IPERF_CONF_OPTS = \
+	--disable-web100
+
+$(eval $(autotools-package))