Thread (91 messages) 91 messages, 11 authors, 2018-12-13

Re: [RFC v2 04/13] x86/mm: Add helper functions for MKTME memory encryption keys

From: Peter Zijlstra <peterz@infradead.org>
Date: 2018-12-04 09:14:46
Also in: keyrings, linux-mm

On Mon, Dec 03, 2018 at 11:39:51PM -0800, Alison Schofield wrote:
+int mktme_map_keyid_from_key(void *key)
+{
+	int i;
+
+	for (i = 1; i <= mktme_nr_keyids; i++)
+		if (mktme_map->key[i] == key)
+			return i;
CodingStyle
+	return 0;
+}
+int mktme_map_get_free_keyid(void)
+{
+	int i;
+
+	if (mktme_map->mapped_keyids < mktme_nr_keyids) {
+		for (i = 1; i <= mktme_nr_keyids; i++)
+			if (mktme_map->key[i] == 0)
+				return i;
CodingStyle
+	}
+	return 0;
+}
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