[PATCH 8/9] crypto: sha256 - Merge crypto/sha256.h into crypto/sha.h

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The generic sha256 implementation from lib/crypto/sha256.c uses data
structs defined in crypto/sha.h, so lets move the function prototypes
there too.

Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
 arch/s390/purgatory/purgatory.c |  2 +-
 arch/x86/purgatory/purgatory.c  |  2 +-
 crypto/sha256_generic.c         |  1 -
 include/crypto/sha.h            | 21 ++++++++++++++++++++
 include/crypto/sha256.h         | 34 ---------------------------------
 lib/crypto/sha256.c             |  2 +-
 6 files changed, 24 insertions(+), 38 deletions(-)
 delete mode 100644 include/crypto/sha256.h

diff --git a/arch/s390/purgatory/purgatory.c b/arch/s390/purgatory/purgatory.c
index a80c78da9985..0a423bcf6746 100644
--- a/arch/s390/purgatory/purgatory.c
+++ b/arch/s390/purgatory/purgatory.c
@@ -9,7 +9,7 @@
 
 #include <linux/kexec.h>
 #include <linux/string.h>
-#include <crypto/sha256.h>
+#include <crypto/sha.h>
 #include <asm/purgatory.h>
 
 int verify_sha256_digest(void)
diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
index 7f90a86eff49..3b95410ff0f8 100644
--- a/arch/x86/purgatory/purgatory.c
+++ b/arch/x86/purgatory/purgatory.c
@@ -9,7 +9,7 @@
  */
 
 #include <linux/bug.h>
-#include <crypto/sha256.h>
+#include <crypto/sha.h>
 #include <asm/purgatory.h>
 
 #include "../boot/string.h"
diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c
index eafd10f9bf86..f2d7095d4f2d 100644
--- a/crypto/sha256_generic.c
+++ b/crypto/sha256_generic.c
@@ -13,7 +13,6 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <crypto/sha.h>
-#include <crypto/sha256.h>
 #include <crypto/sha256_base.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index 8a46202b1857..535955c84187 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -112,4 +112,25 @@ extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
 
 extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
 			       unsigned int len, u8 *hash);
+
+/*
+ * Stand-alone implementation of the SHA256 algorithm. It is designed to
+ * have as little dependencies as possible so it can be used in the
+ * kexec_file purgatory. In other cases you should generally use the
+ * hash APIs from include/crypto/hash.h. Especially when hashing large
+ * amounts of data as those APIs may be hw-accelerated.
+ *
+ * For details see lib/crypto/sha256.c
+ */
+
+extern int sha256_init(struct sha256_state *sctx);
+extern int sha256_update(struct sha256_state *sctx, const u8 *input,
+			 unsigned int length);
+extern int sha256_final(struct sha256_state *sctx, u8 *hash);
+
+extern int sha224_init(struct sha256_state *sctx);
+extern int sha224_update(struct sha256_state *sctx, const u8 *input,
+			 unsigned int length);
+extern int sha224_final(struct sha256_state *sctx, u8 *hash);
+
 #endif
diff --git a/include/crypto/sha256.h b/include/crypto/sha256.h
deleted file mode 100644
index a75998d65a41..000000000000
--- a/include/crypto/sha256.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- *  Copyright (C) 2014 Red Hat Inc.
- *
- *  Author: Vivek Goyal <vgoyal@xxxxxxxxxx>
- */
-
-#ifndef SHA256_H
-#define SHA256_H
-
-#include <linux/types.h>
-#include <crypto/sha.h>
-
-/*
- * Stand-alone implementation of the SHA256 algorithm. It is designed to
- * have as little dependencies as possible so it can be used in the
- * kexec_file purgatory. In other cases you should generally use the
- * hash APIs from include/crypto/hash.h. Especially when hashing large
- * amounts of data as those APIs may be hw-accelerated.
- *
- * For details see lib/crypto/sha256.c
- */
-
-extern int sha256_init(struct sha256_state *sctx);
-extern int sha256_update(struct sha256_state *sctx, const u8 *input,
-			 unsigned int length);
-extern int sha256_final(struct sha256_state *sctx, u8 *hash);
-
-extern int sha224_init(struct sha256_state *sctx);
-extern int sha224_update(struct sha256_state *sctx, const u8 *input,
-			 unsigned int length);
-extern int sha224_final(struct sha256_state *sctx, u8 *hash);
-
-#endif /* SHA256_H */
diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c
index 42d75e490a97..220b74c2bbd8 100644
--- a/lib/crypto/sha256.c
+++ b/lib/crypto/sha256.c
@@ -15,7 +15,7 @@
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/string.h>
-#include <crypto/sha256.h>
+#include <crypto/sha.h>
 #include <asm/unaligned.h>
 
 static inline u32 Ch(u32 x, u32 y, u32 z)
-- 
2.23.0




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