In multiple functions we are searching for the protocol of a handle.
This patch provides a new function efi_search_protocol that we can
use to avoid duplicating code.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
lib/efi_loader/efi_boottime.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index b643d299b9..9dae02daca 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -453,6 +453,31 @@ static efi_status_t EFIAPI efi_check_event(struct
efi_event *event)
return EFI_EXIT(EFI_INVALID_PARAMETER);
}
+static efi_status_t efi_search_protocol(void *handle, efi_guid_t
*protocol_guid,
+ struct efi_handler **handler)
+{
+ struct efi_object *efiobj;
+ size_t i;
+ struct efi_handler *protocol;
+
+ if (!handle || !protocol_guid)
+ return EFI_INVALID_PARAMETER;
+ efiobj = efi_search_obj(handle);
+ if (!efiobj)
+ return EFI_INVALID_PARAMETER;
+ for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
+ protocol = &efiobj->protocols[i];
+ if (!protocol->guid)
+ continue;
+ if (!guidcmp(protocol->guid, protocol_guid)) {
+ if (handler)
+ *handler = protocol;
+ return EFI_SUCCESS;
+ }
+ }
+ return EFI_NOT_FOUND;
+}
+
static efi_status_t EFIAPI efi_install_protocol_interface(void **handle,
efi_guid_t *protocol, int protocol_interface_type,
void *protocol_interface)
--
2.14.1
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