1 files changed, 0 insertions, 120 deletions
diff --git a/include/linux/keyslot-manager.h b/include/linux/keyslot-manager.h
deleted file mode 100644
index a27605e2f826..000000000000
--- a/include/linux/keyslot-manager.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright 2019 Google LLC
- */
-
-#ifndef __LINUX_KEYSLOT_MANAGER_H
-#define __LINUX_KEYSLOT_MANAGER_H
-
-#include <linux/bio.h>
-#include <linux/blk-crypto.h>
-
-struct blk_keyslot_manager;
-
-/**
- * struct blk_ksm_ll_ops - functions to manage keyslots in hardware
- * @keyslot_program:	Program the specified key into the specified slot in the
- *			inline encryption hardware.
- * @keyslot_evict:	Evict key from the specified keyslot in the hardware.
- *			The key is provided so that e.g. dm layers can evict
- *			keys from the devices that they map over.
- *			Returns 0 on success, -errno otherwise.
- *
- * This structure should be provided by storage device drivers when they set up
- * a keyslot manager - this structure holds the function ptrs that the keyslot
- * manager will use to manipulate keyslots in the hardware.
- */
-struct blk_ksm_ll_ops {
-	int (*keyslot_program)(struct blk_keyslot_manager *ksm,
-			       const struct blk_crypto_key *key,
-			       unsigned int slot);
-	int (*keyslot_evict)(struct blk_keyslot_manager *ksm,
-			     const struct blk_crypto_key *key,
-			     unsigned int slot);
-};
-
-struct blk_keyslot_manager {
-	/*
-	 * The struct blk_ksm_ll_ops that this keyslot manager will use
-	 * to perform operations like programming and evicting keys on the
-	 * device
-	 */
-	struct blk_ksm_ll_ops ksm_ll_ops;
-
-	/*
-	 * The maximum number of bytes supported for specifying the data unit
-	 * number.
-	 */
-	unsigned int max_dun_bytes_supported;
-
-	/*
-	 * Array of size BLK_ENCRYPTION_MODE_MAX of bitmasks that represents
-	 * whether a crypto mode and data unit size are supported. The i'th
-	 * bit of crypto_mode_supported[crypto_mode] is set iff a data unit
-	 * size of (1 << i) is supported. We only support data unit sizes
-	 * that are powers of 2.
-	 */
-	unsigned int crypto_modes_supported[BLK_ENCRYPTION_MODE_MAX];
-
-	/* Device for runtime power management (NULL if none) */
-	struct device *dev;
-
-	/* Here onwards are *private* fields for internal keyslot manager use */
-
-	unsigned int num_slots;
-
-	/* Protects programming and evicting keys from the device */
-	struct rw_semaphore lock;
-
-	/* List of idle slots, with least recently used slot at front */
-	wait_queue_head_t idle_slots_wait_queue;
-	struct list_head idle_slots;
-	spinlock_t idle_slots_lock;
-
-	/*
-	 * Hash table which maps struct *blk_crypto_key to keyslots, so that we
-	 * can find a key's keyslot in O(1) time rather than O(num_slots).
-	 * Protected by 'lock'.
-	 */
-	struct hlist_head *slot_hashtable;
-	unsigned int log_slot_ht_size;
-
-	/* Per-keyslot data */
-	struct blk_ksm_keyslot *slots;
-};
-
-int blk_ksm_init(struct blk_keyslot_manager *ksm, unsigned int num_slots);
-
-int devm_blk_ksm_init(struct device *dev, struct blk_keyslot_manager *ksm,
-		      unsigned int num_slots);
-
-blk_status_t blk_ksm_get_slot_for_key(struct blk_keyslot_manager *ksm,
-				      const struct blk_crypto_key *key,
-				      struct blk_ksm_keyslot **slot_ptr);
-
-unsigned int blk_ksm_get_slot_idx(struct blk_ksm_keyslot *slot);
-
-void blk_ksm_put_slot(struct blk_ksm_keyslot *slot);
-
-bool blk_ksm_crypto_cfg_supported(struct blk_keyslot_manager *ksm,
-				  const struct blk_crypto_config *cfg);
-
-int blk_ksm_evict_key(struct blk_keyslot_manager *ksm,
-		      const struct blk_crypto_key *key);
-
-void blk_ksm_reprogram_all_keys(struct blk_keyslot_manager *ksm);
-
-void blk_ksm_destroy(struct blk_keyslot_manager *ksm);
-
-void blk_ksm_intersect_modes(struct blk_keyslot_manager *parent,
-			     const struct blk_keyslot_manager *child);
-
-void blk_ksm_init_passthrough(struct blk_keyslot_manager *ksm);
-
-bool blk_ksm_is_superset(struct blk_keyslot_manager *ksm_superset,
-			 struct blk_keyslot_manager *ksm_subset);
-
-void blk_ksm_update_capabilities(struct blk_keyslot_manager *target_ksm,
-				 struct blk_keyslot_manager *reference_ksm);
-
-#endif /* __LINUX_KEYSLOT_MANAGER_H */