blk-crypto: export wrapped key functions

Export blk_crypto_derive_sw_secret(), blk_crypto_import_key(),
blk_crypto_generate_key(), and blk_crypto_prepare_key() so that they can
be used by device-mapper when passing through wrapped key support.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

diff --git a/block/blk-crypto-profile.c b/block/blk-crypto-profile.c
index 94a155912bf1c77aa275d4e3d3e0ec9d81448833..81918f6e0caea2b22d946448cba27ec61d2e34cf 100644 (file)
--- a/block/blk-crypto-profile.c
+++ b/block/blk-crypto-profile.c
@@ -501,6 +501,7 @@ int blk_crypto_derive_sw_secret(struct block_device *bdev,
        blk_crypto_hw_exit(profile);
        return err;
 }
+EXPORT_SYMBOL_GPL(blk_crypto_derive_sw_secret);
 
 int blk_crypto_import_key(struct blk_crypto_profile *profile,
                          const u8 *raw_key, size_t raw_key_size,
@@ -520,6 +521,7 @@ int blk_crypto_import_key(struct blk_crypto_profile *profile,
        blk_crypto_hw_exit(profile);
        return ret;
 }
+EXPORT_SYMBOL_GPL(blk_crypto_import_key);
 
 int blk_crypto_generate_key(struct blk_crypto_profile *profile,
                            u8 lt_key[BLK_CRYPTO_MAX_HW_WRAPPED_KEY_SIZE])
@@ -537,6 +539,7 @@ int blk_crypto_generate_key(struct blk_crypto_profile *profile,
        blk_crypto_hw_exit(profile);
        return ret;
 }
+EXPORT_SYMBOL_GPL(blk_crypto_generate_key);
 
 int blk_crypto_prepare_key(struct blk_crypto_profile *profile,
                           const u8 *lt_key, size_t lt_key_size,
@@ -556,6 +559,7 @@ int blk_crypto_prepare_key(struct blk_crypto_profile *profile,
        blk_crypto_hw_exit(profile);
        return ret;
 }
+EXPORT_SYMBOL_GPL(blk_crypto_prepare_key);
 
 /**
  * blk_crypto_intersect_capabilities() - restrict supported crypto capabilities