efi_loader: installation of EFI_RNG_PROTOCOL
Having an EFI_RNG_PROTOCOL without a backing RNG device leads to failure
to boot Linux 5.8.
Only install the EFI_RNG_PROTOCOL if we have a RNG device.
Reported-by: Scott K Logan <logans@cottsay.net>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 0baa1d2..7eea556 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -154,7 +154,6 @@
extern const struct efi_hii_config_access_protocol efi_hii_config_access;
extern const struct efi_hii_database_protocol efi_hii_database;
extern const struct efi_hii_string_protocol efi_hii_string;
-extern const struct efi_rng_protocol efi_rng_protocol;
uint16_t *efi_dp_str(struct efi_device_path *dp);
@@ -404,6 +403,8 @@
efi_status_t efi_console_register(void);
/* Called by bootefi to make all disk storage accessible as EFI objects */
efi_status_t efi_disk_register(void);
+/* Called by efi_init_obj_list() to install EFI_RNG_PROTOCOL */
+efi_status_t efi_rng_register(void);
/* Create handles and protocols for the partitions of a block device */
int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
const char *if_typename, int diskid,