From 63c19be095d0f8eb8992674991e44b4228bd4179 Mon Sep 17 00:00:00 2001
From: Ingo Franzki <ifranzki@linux.ibm.com>
Date: Wed, 17 Oct 2018 17:24:43 +0200
Subject: s390/pkey: Load pkey kernel module automatically

With the recent enhancements of the pkey kernel module,
the pkey kernel module should be loaded automatically
during system startup, if MSA is available.

When used for swap device encryption with random protected
keys, pkey must be loaded before /etc/crypttab is processed,
otherwise the sysfs attributes to read the key from are
not available.

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/crypto/pkey_api.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/s390')

diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c
index 683ff72ae977..86a8799475e9 100644
--- a/drivers/s390/crypto/pkey_api.c
+++ b/drivers/s390/crypto/pkey_api.c
@@ -17,6 +17,7 @@
 #include <linux/kallsyms.h>
 #include <linux/debugfs.h>
 #include <linux/random.h>
+#include <linux/cpufeature.h>
 #include <asm/zcrypt.h>
 #include <asm/cpacf.h>
 #include <asm/pkey.h>
@@ -1704,5 +1705,5 @@ static void __exit pkey_exit(void)
 	pkey_debug_exit();
 }
 
-module_init(pkey_init);
+module_cpu_feature_match(MSA, pkey_init);
 module_exit(pkey_exit);
-- 
cgit 1.4.1