of-reconfig-notifier-error-inject.c

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    1 #include <linux/kernel.h>
    2 #include <linux/module.h>
    3 #include <linux/of.h>
    4 
    5 #include "notifier-error-inject.h"
    6 
    7 static int priority;
    8 module_param(priority, int, 0);
    9 MODULE_PARM_DESC(priority, "specify OF reconfig notifier priority");
   10 
   11 static struct notifier_err_inject reconfig_err_inject = {
   12         .actions = {
   13                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ATTACH_NODE) },
   14                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_DETACH_NODE) },
   15                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ADD_PROPERTY) },
   16                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_REMOVE_PROPERTY) },
   17                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_UPDATE_PROPERTY) },
   18                 {}
   19         }
   20 };
   21 
   22 static struct dentry *dir;
   23 
   24 static int err_inject_init(void)
   25 {
   26         int err;
   27 
   28         dir = notifier_err_inject_init("OF-reconfig",
   29                 notifier_err_inject_dir, &reconfig_err_inject, priority);
   30         if (IS_ERR(dir))
   31                 return PTR_ERR(dir);
   32 
   33         err = of_reconfig_notifier_register(&reconfig_err_inject.nb);
   34         if (err)
   35                 debugfs_remove_recursive(dir);
   36 
   37         return err;
   38 }
   39 
   40 static void err_inject_exit(void)
   41 {
   42         of_reconfig_notifier_unregister(&reconfig_err_inject.nb);
   43         debugfs_remove_recursive(dir);
   44 }
   45 
   46 module_init(err_inject_init);
   47 module_exit(err_inject_exit);
   48 
   49 MODULE_DESCRIPTION("OF reconfig notifier error injection module");
   50 MODULE_LICENSE("GPL");
   51 MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");

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FreeBSD/Linux Kernel Cross Reference sys/lib/of-reconfig-notifier-error-inject.c

FreeBSD/Linux Kernel Cross Reference
sys/lib/of-reconfig-notifier-error-inject.c