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efi_loader: don't use HandleProtocol

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HandleProtocol() is deprecrated. According to the UEFI specification it
should be implemented as a call to  OpenProtocolInterface() with a hard
coded agent handle. This implies that we would have to call
CloseProtocolInterfaces() after usage with the same handle.

Getting rid of an EFI_CALL() is also appreciated.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt 2023-01-24 20:36:45 +01:00
parent 23aa0502a4
commit 15436faa46
1 changed files with 3 additions and 2 deletions
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5
lib/efi_loader/efi_boottime.c
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@ -1949,6 +1949,7 @@ efi_status_t efi_load_image_from_path(bool boot_policy,
efi_uintn_t buffer_size;
uint64_t addr, pages;
const efi_guid_t *guid;
struct efi_handler *handler;
/* In case of failure nothing is returned */
*buffer = NULL;
@ -1970,11 +1971,11 @@ efi_status_t efi_load_image_from_path(bool boot_policy,
}
if (ret != EFI_SUCCESS)
return EFI_NOT_FOUND;
ret = EFI_CALL(efi_handle_protocol(device, guid,
(void **)&load_file_protocol));
ret = efi_search_protocol(device, guid, &handler);
if (ret != EFI_SUCCESS)
return EFI_NOT_FOUND;
buffer_size = 0;
load_file_protocol = handler->protocol_interface;
ret = EFI_CALL(load_file_protocol->load_file(
load_file_protocol, rem, boot_policy,
&buffer_size, NULL));