From: Alistair Francis <alistair.francis@wdc.com>

Make the functions crypto_shash_descsize(), crypto_shash_digestsize()
and crypto_free_shash() available to Rust.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 rust/bindings/bindings_helper.h |  2 ++
 rust/helpers/hash.c             | 18 ++++++++++++++++++
 rust/helpers/helpers.c          |  1 +
 3 files changed, 21 insertions(+)
 create mode 100644 rust/helpers/hash.c

diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h
index a067038b4b42..0075c4b62c29 100644
--- a/rust/bindings/bindings_helper.h
+++ b/rust/bindings/bindings_helper.h
@@ -34,6 +34,7 @@
 #include <drm/drm_file.h>
 #include <drm/drm_gem.h>
 #include <drm/drm_ioctl.h>
+#include <crypto/hash.h>
 #include <kunit/test.h>
 #include <linux/auxiliary_bus.h>
 #include <linux/bitmap.h>
@@ -60,6 +61,7 @@
 #include <linux/fs.h>
 #include <linux/i2c.h>
 #include <linux/ioport.h>
+#include <linux/hash.h>
 #include <linux/jiffies.h>
 #include <linux/jump_label.h>
 #include <linux/mdio.h>
diff --git a/rust/helpers/hash.c b/rust/helpers/hash.c
new file mode 100644
index 000000000000..8ddb84668841
--- /dev/null
+++ b/rust/helpers/hash.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <crypto/hash.h>
+
+unsigned int rust_helper_crypto_shash_descsize(struct crypto_shash *tfm)
+{
+	return crypto_shash_descsize(tfm);
+}
+
+unsigned int rust_helper_crypto_shash_digestsize(struct crypto_shash *tfm)
+{
+	return crypto_shash_digestsize(tfm);
+}
+
+void rust_helper_crypto_free_shash(struct crypto_shash *tfm)
+{
+	crypto_free_shash(tfm);
+}
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index a3c42e51f00a..4b08b4f1d3a3 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -30,6 +30,7 @@
 #include "dma.c"
 #include "drm.c"
 #include "err.c"
+#include "hash.c"
 #include "irq.c"
 #include "fs.c"
 #include "io.c"
-- 
2.52.0