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