From f4acdf8c42c3ea27cee8f195a1aabf1f100a4c6e Mon Sep 17 00:00:00 2001
From: Mathias Kresin <dev@kresin.me>
Date: Sun, 27 Dec 2020 14:55:43 +0100
Subject: [PATCH] lantiq: ltq-vdsl-mei: add kernel 5.10 compatiblity

proc_create_data() expects a struct of type proc_ops.

Signed-off-by: Mathias Kresin <dev@kresin.me>
---
 .../ltq-vdsl-mei/patches/100-compat.patch     | 76 +++++++++++++++++--
 .../patches/101_no-date-time.patch            |  2 +-
 2 files changed, 71 insertions(+), 7 deletions(-)

diff --git a/package/kernel/lantiq/ltq-vdsl-mei/patches/100-compat.patch b/package/kernel/lantiq/ltq-vdsl-mei/patches/100-compat.patch
index e9584098ee..75e1500171 100644
--- a/package/kernel/lantiq/ltq-vdsl-mei/patches/100-compat.patch
+++ b/package/kernel/lantiq/ltq-vdsl-mei/patches/100-compat.patch
@@ -43,7 +43,45 @@
  #ifdef MODULE
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
  MODULE_PARM(major_number, "b");
-@@ -2174,9 +2178,11 @@ static int MEI_module_init (void)
+@@ -1479,7 +1483,11 @@ struct proc_entry {
+    char name[32];
+    proc_rd_callback_t rd;
+    proc_wr_callback_t wr;
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0))
+    struct file_operations ops;
++#else
++   struct proc_ops ops;
++#endif
+    int entity;
+ };
+ 
+@@ -1869,6 +1877,7 @@ static int mei_proc_single_open(struct i
+ static void mei_proc_entry_create(struct proc_dir_entry *parent_node,
+                                   struct proc_entry *proc_entry)
+ {
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0))
+    memset(&proc_entry->ops, 0, sizeof(struct file_operations));
+    proc_entry->ops.owner = THIS_MODULE;
+ 
+@@ -1879,6 +1888,17 @@ static void mei_proc_entry_create(struct
+    proc_entry->ops.llseek = seq_lseek;
+    if (proc_entry->wr)
+       proc_entry->ops.write = proc_entry->wr;
++#else
++   memset(&proc_entry->ops, 0, sizeof(struct proc_ops));
++
++   proc_entry->ops.proc_open = mei_proc_single_open;
++   proc_entry->ops.proc_release = single_release;
++
++   proc_entry->ops.proc_read = seq_read;
++   proc_entry->ops.proc_lseek = seq_lseek;
++   if (proc_entry->wr)
++      proc_entry->ops.proc_write = proc_entry->wr;
++#endif
+ 
+    proc_create_data(proc_entry->name,
+                      (S_IFREG | S_IRUGO),
+@@ -2174,9 +2194,11 @@ static int MEI_module_init (void)
        return (result);
     }
  
@@ -55,7 +93,7 @@
  
     return 0;
  }
-@@ -2304,6 +2310,10 @@ static void MEI_module_exit (void)
+@@ -2304,6 +2326,10 @@ static void MEI_module_exit (void)
  
  #else
     unregister_chrdev ( major_number , DRV_MEI_NAME );
@@ -66,7 +104,7 @@
  #endif
  
  #if CONFIG_PROC_FS
-@@ -2388,9 +2398,11 @@ static void MEI_module_exit (void)
+@@ -2388,9 +2414,11 @@ static void MEI_module_exit (void)
              ("MEI_DRV: Chipset Basic Exit failed" MEI_DRV_CRLF));
     }
  
@@ -78,7 +116,7 @@
  
  #if (MEI_SUPPORT_DEBUG_LOGGER == 1)
     if (nl_debug_sock)
-@@ -2514,6 +2526,10 @@ static int MEI_InitModuleRegCharDev(cons
+@@ -2514,6 +2542,10 @@ static int MEI_InitModuleRegCharDev(cons
              ("Using major number %d" MEI_DRV_CRLF, major_number));
     }
  
@@ -89,7 +127,7 @@
     return 0;
  #endif      /* CONFIG_DEVFS_FS */
  }
-@@ -2563,21 +2579,32 @@ static int MEI_InitModuleBasics(void)
+@@ -2563,21 +2595,32 @@ static int MEI_InitModuleBasics(void)
  }
  
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0))
@@ -122,7 +160,7 @@
  
     return 0;
  }
-@@ -2905,11 +2932,15 @@ IFX_int32_t MEI_IoctlInitDevice(
+@@ -2905,11 +2948,15 @@ IFX_int32_t MEI_IoctlInitDevice(
              pMeiDev->eModePoll = e_MEI_DEV_ACCESS_MODE_IRQ;
              pMeiDev->intMask   = ME_ARC2ME_INTERRUPT_UNMASK_ALL;
  
@@ -366,3 +404,29 @@
     }
  #endif
  
+--- a/src/drv_mei_cpe_linux_proc_config.c
++++ b/src/drv_mei_cpe_linux_proc_config.c
+@@ -1039,6 +1039,7 @@ static int mei_proc_single_open(struct i
+ 	return single_open(file, mei_seq_single_show, PDE_DATA(inode));
+ }
+ 
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0))
+ static struct file_operations proc_ops = {
+    .owner = THIS_MODULE,
+    .open = mei_proc_single_open,
+@@ -1047,6 +1048,15 @@ static struct file_operations proc_ops =
+    .llseek = seq_lseek,
+    .write = MEI_ProcWriteConfig
+ };
++#else
++static struct proc_ops proc_ops = {
++   .proc_open = mei_proc_single_open,
++   .proc_release = single_release,
++   .proc_read = seq_read,
++   .proc_lseek = seq_lseek,
++   .proc_write = MEI_ProcWriteConfig
++};
++#endif
+ 
+ /**
+    Create an read/write proc entry for configuration.
diff --git a/package/kernel/lantiq/ltq-vdsl-mei/patches/101_no-date-time.patch b/package/kernel/lantiq/ltq-vdsl-mei/patches/101_no-date-time.patch
index 2cb22d4a8a..055797ad4d 100644
--- a/package/kernel/lantiq/ltq-vdsl-mei/patches/101_no-date-time.patch
+++ b/package/kernel/lantiq/ltq-vdsl-mei/patches/101_no-date-time.patch
@@ -1,6 +1,6 @@
 --- a/src/drv_mei_cpe_linux.c
 +++ b/src/drv_mei_cpe_linux.c
-@@ -1499,8 +1499,8 @@ struct proc_entry {
+@@ -1503,8 +1503,8 @@ struct proc_entry {
  static void MEI_GetVersionProc(struct seq_file *s)
  {
     seq_printf(s, "%s" MEI_DRV_CRLF, &MEI_WHATVERSION[4]);