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.glpk@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)