From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 22 Jan 2020 12:32:33 -0800
Subject: NOUPSTREAM: ANDROID: block: export symbols needed for modules to use
 inline crypto

Export the blk-crypto symbols needed for modules to use inline crypto.

This is needed for dm-default-key.

These would have already been exported, except that so far they've only
been used by fs/crypto/, which is no longer modular.

[CPNOTE: 20/07/21] Lee: Required until 'dm-default-key' is upstream

Bug: 137270441
Bug: 147814592
Bug: 160885805
Change-Id: I64bf98aecabe891c188b30dd50124aacb1e008ca
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Lee Jones <joneslee@google.com>
---
 block/blk-crypto.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/blk-crypto.c b/block/blk-crypto.c
--- a/block/blk-crypto.c
+++ b/block/blk-crypto.c
@@ -115,6 +115,7 @@ void bio_crypt_set_ctx(struct bio *bio, const struct blk_crypto_key *key,
 
 	bio->bi_crypt_context = bc;
 }
+EXPORT_SYMBOL_GPL(bio_crypt_set_ctx);
 
 void __bio_crypt_free_ctx(struct bio *bio)
 {
@@ -380,6 +381,7 @@ int blk_crypto_init_key(struct blk_crypto_key *blk_key,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(blk_crypto_init_key);
 
 bool blk_crypto_config_supported_natively(struct block_device *bdev,
 					  const struct blk_crypto_config *cfg)
@@ -428,6 +430,7 @@ int blk_crypto_start_using_key(struct block_device *bdev,
 	}
 	return blk_crypto_fallback_start_using_mode(key->crypto_cfg.crypto_mode);
 }
+EXPORT_SYMBOL_GPL(blk_crypto_start_using_key);
 
 /**
  * blk_crypto_evict_key() - Evict a blk_crypto_key from a block_device