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TOMOYO Linux Cross Reference
Linux/include/linux/mdev.h

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Diff markup

Differences between /include/linux/mdev.h (Version linux-6.12-rc7) and /include/linux/mdev.h (Version linux-6.1.114)


** Warning: Cannot open xref database.

  1 /* SPDX-License-Identifier: GPL-2.0-only */         1 
  2 /*                                                
  3  * Mediated device definition                     
  4  *                                                
  5  * Copyright (c) 2016, NVIDIA CORPORATION. All    
  6  *     Author: Neo Jia <cjia@nvidia.com>          
  7  *             Kirti Wankhede <kwankhede@nvidi    
  8  */                                               
  9                                                   
 10 #ifndef MDEV_H                                    
 11 #define MDEV_H                                    
 12                                                   
 13 #include <linux/device.h>                         
 14 #include <linux/uuid.h>                           
 15                                                   
 16 struct mdev_type;                                 
 17                                                   
 18 struct mdev_device {                              
 19         struct device dev;                        
 20         guid_t uuid;                              
 21         struct list_head next;                    
 22         struct mdev_type *type;                   
 23         bool active;                              
 24 };                                                
 25                                                   
 26 struct mdev_type {                                
 27         /* set by the driver before calling md    
 28         const char *sysfs_name;                   
 29         const char *pretty_name;                  
 30                                                   
 31         /* set by the core, can be used driver    
 32         struct mdev_parent *parent;               
 33                                                   
 34         /* internal only */                       
 35         struct kobject kobj;                      
 36         struct kobject *devices_kobj;             
 37 };                                                
 38                                                   
 39 /* embedded into the struct device that the md    
 40 struct mdev_parent {                              
 41         struct device *dev;                       
 42         struct mdev_driver *mdev_driver;          
 43         struct kset *mdev_types_kset;             
 44         /* Synchronize device creation/removal    
 45         struct rw_semaphore unreg_sem;            
 46         struct mdev_type **types;                 
 47         unsigned int nr_types;                    
 48         atomic_t available_instances;             
 49 };                                                
 50                                                   
 51 static inline struct mdev_device *to_mdev_devi    
 52 {                                                 
 53         return container_of(dev, struct mdev_d    
 54 }                                                 
 55                                                   
 56 /**                                               
 57  * struct mdev_driver - Mediated device driver    
 58  * @device_api: string to return for the devic    
 59  * @max_instances: maximum number of instances    
 60  * @probe: called when new device created         
 61  * @remove: called when device removed            
 62  * @get_available: Return the max number of in    
 63  * @show_description: Print a description of t    
 64  * @driver: device driver structure               
 65  **/                                              
 66 struct mdev_driver {                              
 67         const char *device_api;                   
 68         unsigned int max_instances;               
 69         int (*probe)(struct mdev_device *dev);    
 70         void (*remove)(struct mdev_device *dev    
 71         unsigned int (*get_available)(struct m    
 72         ssize_t (*show_description)(struct mde    
 73         struct device_driver driver;              
 74 };                                                
 75                                                   
 76 int mdev_register_parent(struct mdev_parent *p    
 77                 struct mdev_driver *mdev_drive    
 78                 unsigned int nr_types);           
 79 void mdev_unregister_parent(struct mdev_parent    
 80                                                   
 81 int mdev_register_driver(struct mdev_driver *d    
 82 void mdev_unregister_driver(struct mdev_driver    
 83                                                   
 84 static inline struct device *mdev_dev(struct m    
 85 {                                                 
 86         return &mdev->dev;                        
 87 }                                                 
 88                                                   
 89 #endif /* MDEV_H */                               
 90                                                   

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