backport/compat/main.c

   1 #include <linux/module.h>
   2 #include <linux/init.h>
   3 #include <linux/pm_qos.h>
   4 #include <linux/workqueue.h>
   5 #include "backports.h"
   6
   7 MODULE_AUTHOR("Luis R. Rodriguez");
   8 MODULE_DESCRIPTION("Kernel backport module");
   9 MODULE_LICENSE("GPL");
  10
  11 #ifndef CPTCFG_KERNEL_NAME
  12 #error "You need a CPTCFG_KERNEL_NAME"
  13 #endif
  14
  15 #ifndef CPTCFG_KERNEL_VERSION
  16 #error "You need a CPTCFG_KERNEL_VERSION"
  17 #endif
  18
  19 #ifndef CPTCFG_VERSION
  20 #error "You need a CPTCFG_VERSION"
  21 #endif
  22
  23 static char *backported_kernel_name = CPTCFG_KERNEL_NAME;
  24
  25 module_param(backported_kernel_name, charp, 0400);
  26 MODULE_PARM_DESC(backported_kernel_name,
  27                  "The kernel tree name that was used for this backport (" CPTCFG_KERNEL_NAME ")");
  28
  29 #ifdef BACKPORTS_GIT_TRACKED
  30 static char *backports_tracker_id = BACKPORTS_GIT_TRACKED;
  31 module_param(backports_tracker_id, charp, 0400);
  32 MODULE_PARM_DESC(backports_tracker_id,
  33                  "The version of the tree containing this backport (" BACKPORTS_GIT_TRACKED ")");
  34 #else
  35 static char *backported_kernel_version = CPTCFG_KERNEL_VERSION;
  36 static char *backports_version = CPTCFG_VERSION;
  37
  38 module_param(backported_kernel_version, charp, 0400);
  39 MODULE_PARM_DESC(backported_kernel_version,
  40                  "The kernel version that was used for this backport (" CPTCFG_KERNEL_VERSION ")");
  41
  42 module_param(backports_version, charp, 0400);
  43 MODULE_PARM_DESC(backports_version,
  44                  "The git version of the backports tree used to generate this backport (" CPTCFG_VERSION ")");
  45
  46 #endif
  47
  48 void backport_dependency_symbol(void)
  49 {
  50 }
  51 EXPORT_SYMBOL_GPL(backport_dependency_symbol);
  52
  53
  54 static int __init backport_init(void)
  55 {
  56         int ret = crypto_ccm_module_init();
  57         if (ret)
  58                 return ret;
  59
  60         ret = devcoredump_init();
  61         if (ret) {
  62                 crypto_ccm_module_exit();
  63                 return ret;
  64         }
  65
  66         printk(KERN_INFO "Loading modules backported from " CPTCFG_KERNEL_NAME
  67 #ifndef BACKPORTS_GIT_TRACKED
  68                 " version " CPTCFG_KERNEL_VERSION
  69 #endif
  70                 "\n");
  71 #ifdef BACKPORTS_GIT_TRACKED
  72         printk(KERN_INFO BACKPORTS_GIT_TRACKED "\n");
  73 #else
  74
  75 #ifdef CONFIG_BACKPORT_INTEGRATE
  76         printk(KERN_INFO "Backport integrated by backports.git " CPTCFG_VERSION "\n");
  77 #else
  78         printk(KERN_INFO "Backport generated by backports.git " CPTCFG_VERSION "\n");
  79 #endif /* CONFIG_BACKPORT_INTEGRATE */
  80
  81 #endif /* BACKPORTS_GIT_TRACKED */
  82
  83         return 0;
  84 }
  85 subsys_initcall(backport_init);
  86
  87 static void __exit backport_exit(void)
  88 {
  89         crypto_ccm_module_exit();
  90         devcoredump_exit();
  91 }
  92 module_exit(backport_exit);