module: Drop unused signature types

Only PKCS#7 signatures are used today.

Remove the unused enum values. As this enum is used in on-disk data,
preserve the numeric value.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

diff --git a/include/linux/module_signature.h b/include/linux/module_signature.h
index 7eb4b00381aca5610c171ca132001fbc10c66d84..820cc1473383d413205e7300959fef0dea0d80ac 100644 (file)
--- a/include/linux/module_signature.h
+++ b/include/linux/module_signature.h
@@ -15,9 +15,7 @@
 #define MODULE_SIG_STRING "~Module signature appended~\n"
 
 enum pkey_id_type {
-       PKEY_ID_PGP,            /* OpenPGP generated key ID */
-       PKEY_ID_X509,           /* X.509 arbitrary subjectKeyIdentifier */
-       PKEY_ID_PKCS7,          /* Signature in PKCS#7 message */
+       PKEY_ID_PKCS7 = 2,      /* Signature in PKCS#7 message */
 };
 
 /*