[PATCH 3/5] crypto: powerpc/sha - remove duplicate hash init function

[Tianjia Zhang]

sha*_base_init() series functions has implemented the initialization
of the hash context, this commit use sha*_base_init() function to
replace repeated implementations.

Signed-off-by: Tianjia Zhang <tianjia.zhang at linux.alibaba.com>
---
 arch/powerpc/crypto/sha1-spe-glue.c   | 17 ++----------
 arch/powerpc/crypto/sha1.c            | 14 ++--------
 arch/powerpc/crypto/sha256-spe-glue.c | 39 +++------------------------
 3 files changed, 7 insertions(+), 63 deletions(-)

diff --git a/arch/powerpc/crypto/sha1-spe-glue.c b/arch/powerpc/crypto/sha1-spe-glue.c
index 88e8ea73bfa7..9170892a8557 100644
--- a/arch/powerpc/crypto/sha1-spe-glue.c
+++ b/arch/powerpc/crypto/sha1-spe-glue.c
@@ -13,6 +13,7 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <crypto/sha1.h>
+#include <crypto/sha1_base.h>
 #include <asm/byteorder.h>
 #include <asm/switch_to.h>
 #include <linux/hardirq.h>
@@ -55,20 +56,6 @@ static inline void ppc_sha1_clear_context(struct sha1_state *sctx)
 	do { *ptr++ = 0; } while (--count);
 }
 
-static int ppc_spe_sha1_init(struct shash_desc *desc)
-{
-	struct sha1_state *sctx = shash_desc_ctx(desc);
-
-	sctx->state[0] = SHA1_H0;
-	sctx->state[1] = SHA1_H1;
-	sctx->state[2] = SHA1_H2;
-	sctx->state[3] = SHA1_H3;
-	sctx->state[4] = SHA1_H4;
-	sctx->count = 0;
-
-	return 0;
-}
-
 static int ppc_spe_sha1_update(struct shash_desc *desc, const u8 *data,
 			unsigned int len)
 {
@@ -168,7 +155,7 @@ static int ppc_spe_sha1_import(struct shash_desc *desc, const void *in)
 
 static struct shash_alg alg = {
 	.digestsize	=	SHA1_DIGEST_SIZE,
-	.init		=	ppc_spe_sha1_init,
+	.init		=	sha1_base_init,
 	.update		=	ppc_spe_sha1_update,
 	.final		=	ppc_spe_sha1_final,
 	.export		=	ppc_spe_sha1_export,
diff --git a/arch/powerpc/crypto/sha1.c b/arch/powerpc/crypto/sha1.c
index 7a55d790cdb1..f283bbd3f121 100644
--- a/arch/powerpc/crypto/sha1.c
+++ b/arch/powerpc/crypto/sha1.c
@@ -18,21 +18,11 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <crypto/sha1.h>
+#include <crypto/sha1_base.h>
 #include <asm/byteorder.h>
 
 void powerpc_sha_transform(u32 *state, const u8 *src);
 
-static int powerpc_sha1_init(struct shash_desc *desc)
-{
-	struct sha1_state *sctx = shash_desc_ctx(desc);
-
-	*sctx = (struct sha1_state){
-		.state = { SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4 },
-	};
-
-	return 0;
-}
-
 static int powerpc_sha1_update(struct shash_desc *desc, const u8 *data,
 			       unsigned int len)
 {
@@ -114,7 +104,7 @@ static int powerpc_sha1_import(struct shash_desc *desc, const void *in)
 
 static struct shash_alg alg = {
 	.digestsize	=	SHA1_DIGEST_SIZE,
-	.init		=	powerpc_sha1_init,
+	.init		=	sha1_base_init,
 	.update		=	powerpc_sha1_update,
 	.final		=	powerpc_sha1_final,
 	.export		=	powerpc_sha1_export,
diff --git a/arch/powerpc/crypto/sha256-spe-glue.c b/arch/powerpc/crypto/sha256-spe-glue.c
index ffedea7e4bef..2997d13236e0 100644
--- a/arch/powerpc/crypto/sha256-spe-glue.c
+++ b/arch/powerpc/crypto/sha256-spe-glue.c
@@ -14,6 +14,7 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <crypto/sha2.h>
+#include <crypto/sha256_base.h>
 #include <asm/byteorder.h>
 #include <asm/switch_to.h>
 #include <linux/hardirq.h>
@@ -56,40 +57,6 @@ static inline void ppc_sha256_clear_context(struct sha256_state *sctx)
 	do { *ptr++ = 0; } while (--count);
 }
 
-static int ppc_spe_sha256_init(struct shash_desc *desc)
-{
-	struct sha256_state *sctx = shash_desc_ctx(desc);
-
-	sctx->state[0] = SHA256_H0;
-	sctx->state[1] = SHA256_H1;
-	sctx->state[2] = SHA256_H2;
-	sctx->state[3] = SHA256_H3;
-	sctx->state[4] = SHA256_H4;
-	sctx->state[5] = SHA256_H5;
-	sctx->state[6] = SHA256_H6;
-	sctx->state[7] = SHA256_H7;
-	sctx->count = 0;
-
-	return 0;
-}
-
-static int ppc_spe_sha224_init(struct shash_desc *desc)
-{
-	struct sha256_state *sctx = shash_desc_ctx(desc);
-
-	sctx->state[0] = SHA224_H0;
-	sctx->state[1] = SHA224_H1;
-	sctx->state[2] = SHA224_H2;
-	sctx->state[3] = SHA224_H3;
-	sctx->state[4] = SHA224_H4;
-	sctx->state[5] = SHA224_H5;
-	sctx->state[6] = SHA224_H6;
-	sctx->state[7] = SHA224_H7;
-	sctx->count = 0;
-
-	return 0;
-}
-
 static int ppc_spe_sha256_update(struct shash_desc *desc, const u8 *data,
 			unsigned int len)
 {
@@ -214,7 +181,7 @@ static int ppc_spe_sha256_import(struct shash_desc *desc, const void *in)
 
 static struct shash_alg algs[2] = { {
 	.digestsize	=	SHA256_DIGEST_SIZE,
-	.init		=	ppc_spe_sha256_init,
+	.init		=	sha256_base_init,
 	.update		=	ppc_spe_sha256_update,
 	.final		=	ppc_spe_sha256_final,
 	.export		=	ppc_spe_sha256_export,
@@ -230,7 +197,7 @@ static struct shash_alg algs[2] = { {
 	}
 }, {
 	.digestsize	=	SHA224_DIGEST_SIZE,
-	.init		=	ppc_spe_sha224_init,
+	.init		=	sha224_base_init,
 	.update		=	ppc_spe_sha256_update,
 	.final		=	ppc_spe_sha224_final,
 	.export		=	ppc_spe_sha256_export,
-- 
2.32.0