macremapper: linux 5.6+ compatibility

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

kernel/macremapper/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=macremapper
 PKG_VERSION:=1.1.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/ewsi/$(PKG_NAME)/tar.gz/v$(PKG_VERSION)?

kernel/macremapper/patches/02-mrm_ctlfile.c-compatibility-with-linux-5.6.patch

@@ -0,0 +1,64 @@
+From 6126f8efebf659708245ba99df6b85d7c1260668 Mon Sep 17 00:00:00 2001
+From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+Date: Sun, 31 Jan 2021 20:53:32 -0800
+Subject: [PATCH] mrm_ctlfile.c: compatibility with linux >= 5.6
+
+Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+---
+ kernelmod/mrm_ctlfile.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/kernelmod/mrm_ctlfile.c b/kernelmod/mrm_ctlfile.c
+index 85a8bf9..ca8e7d8 100644
+--- a/kernelmod/mrm_ctlfile.c
++++ b/kernelmod/mrm_ctlfile.c
+@@ -13,6 +13,7 @@
+ #include "./macremapper_ioctl.h"
+ #include "./bufprintf.h"
+ 
++#include <linux/version.h>
+ #include <linux/proc_fs.h>
+ #include <linux/uaccess.h>
+ #include <linux/mutex.h>
+@@ -80,13 +81,14 @@ mrm_handle_read(struct file *f, char __user *buf, size_t size, loff_t *off) {
+ }
+ 
+ static long
+-mrm_handle_ioctl(struct file *f, unsigned int type, void __user *param) {
++mrm_handle_ioctl(struct file *f, unsigned int type, unsigned long arg) {
+   union {
+     struct mrm_filter_config  filt_conf;
+     struct mrm_remap_entry    remap_entry;
+     unsigned                  count;
+   } u;
+   int rv;
++  void __user *param = (void __user *)arg;
+ 
+   mutex_lock(&_ctrl_mutex);
+ 
+@@ -159,6 +161,14 @@ fail_fault:
+ }
+ 
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
++static const struct proc_ops _fops = {
++	.proc_open	= mrm_handle_open,
++	.proc_release	= mrm_handle_release,
++	.proc_read	= mrm_handle_read,
++	.proc_ioctl	= mrm_handle_ioctl,
++};
++#else
+ static const struct file_operations _fops = {
+   owner:           THIS_MODULE,
+   open:            &mrm_handle_open,
+@@ -166,6 +176,7 @@ static const struct file_operations _fops = {
+   read:            &mrm_handle_read,
+   unlocked_ioctl:  (void*)&mrm_handle_ioctl,
+ };
++#endif
+ 
+ int mrm_init_ctlfile( void ) {
+   struct proc_dir_entry *pde;
+-- 
+2.30.0
+