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efi_loader: eliminate handle member

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A pointer to a struct efi_object is a handle. We do not need any handle
member in this structure. Let's eliminate it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-09-26 05:27:55 +02:00 • committed by Alexander Graf
parent faea104105
commit fae0118e7a
7 changed files with 68 additions and 61 deletions
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26
include/efi_loader.h
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@ -167,20 +167,28 @@ struct efi_handler {
struct list_head open_infos;
};
/*
* UEFI has a poor man's OO model where one "object" can be polymorphic and have
* multiple different protocols (classes) attached to it.
/**
* struct efi_object - dereferenced EFI handle
*
* This struct is the parent struct for all of our actual implementation objects
* that can include it to make themselves an EFI object
* @link: pointers to put the handle into a linked list
* @protocols: linked list with the protocol interfaces installed on this
* handle
*
* UEFI offers a flexible and expandable object model. The objects in the UEFI
* API are devices, drivers, and loaded images. struct efi_object is our storage
* structure for these objects.
*
* When including this structure into a larger structure always put it first so
* that when deleting a handle the whole encompassing structure can be freed.
*
* A pointer to this structure is referred to as a handle. Typedef efi_handle_t
* has been created for such pointers.
*/
struct efi_object {
/* Every UEFI object is part of a global object list */
struct list_head link;
/* The list of protocols */
struct list_head protocols;
/* The object spawner can either use this for data or as identifier */
void *handle;
};
/**
@ -290,11 +298,11 @@ void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
/* Call this to set the current device name */
void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
/* Add a new object to the object list. */
void efi_add_handle(struct efi_object *obj);
void efi_add_handle(efi_handle_t obj);
/* Create handle */
efi_status_t efi_create_handle(efi_handle_t *handle);
/* Delete handle */
void efi_delete_handle(struct efi_object *obj);
void efi_delete_handle(efi_handle_t obj);
/* Call this to validate a handle and find the EFI object for it */
struct efi_object *efi_search_obj(const efi_handle_t handle);
/* Find a protocol on a handle */