most: add backport patch

This patch adds the network-backport patch to the files directory.
It is needed to replace the skb_put_data function with a call to
memcpy for kernels older than 4.13 .

Change-Id: Ic20a99a88b632f3b4e6281e3d8cd462dc5c0752b
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>

diff --git a/meta-agl-profile-core/recipes-kernel/most/files/0001-most-aim-network-backport-Kernel-API.patch b/meta-agl-profile-core/recipes-kernel/most/files/0001-most-aim-network-backport-Kernel-API.patch
new file mode 100644 (file)
index 0000000..d43b132
--- /dev/null
+++ b/meta-agl-profile-core/recipes-kernel/most/files/0001-most-aim-network-backport-Kernel-API.patch
@@ -0,0 +1,43 @@
+From 383ffadd33f484ab4aaeb14fa109b61143d27d58 Mon Sep 17 00:00:00 2001
+From: Christian Gromm <christian.gromm@microchip.com>
+Date: Thu, 7 Jun 2018 12:15:38 +0200
+Subject: [PATCH] most: aim-network: backport Kernel API
+
+This patch replaces the function calls skb_put_data with memcpy. It is
+needed to have the module compiled for kernels prior to 4.13.
+
+Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
+---
+ aim-network/networking.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/aim-network/networking.c b/aim-network/networking.c
+index 936f013..4c259c2 100644
+--- a/aim-network/networking.c
++++ b/aim-network/networking.c
+@@ -470,11 +470,11 @@ static int aim_rx_data(struct mbo *mbo)
+               ether_addr_copy(skb_put(skb, ETH_ALEN), dev->dev_addr);
+ 
+               /* src */
+-              skb_put_data(skb, &zero, 4);
+-              skb_put_data(skb, buf + 5, 2);
++              memcpy(skb_put(skb, 4), &zero, 4);
++              memcpy(skb_put(skb, 2), buf + 5, 2);
+ 
+               /* eth type */
+-              skb_put_data(skb, buf + 10, 2);
++              memcpy(skb_put(skb, 2), buf + 10, 2);
+ 
+               buf += MDP_HDR_LEN;
+               len -= MDP_HDR_LEN;
+@@ -483,7 +483,7 @@ static int aim_rx_data(struct mbo *mbo)
+               len -= MEP_HDR_LEN;
+       }
+ 
+-      skb_put_data(skb, buf, len);
++      memcpy(skb_put(skb, len), buf, len);
+       skb->protocol = eth_type_trans(skb, dev);
+       skb_len = skb->len;
+       if (netif_rx(skb) == NET_RX_SUCCESS) {
+-- 
+2.11.0