The transform function can be used as is by other crypto
drivers that need to transform the 256 bit key using cpu.
Hence export it.
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
---
crypto/sha256_generic.c | 3 ++-
include/crypto/sha.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c
index b7502a96a0d4..583a3c3b93e0 100644
--- a/crypto/sha256_generic.c
+++ b/crypto/sha256_generic.c
@@ -63,7 +63,7 @@ static inline void BLEND_OP(int I, u32 *W)
W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
}
-static void sha256_transform(u32 *state, const u8 *input)
+void sha256_transform(u32 *state, const u8 *input)
{
u32 a, b, c, d, e, f, g, h, t1, t2;
u32 W[64];
@@ -225,6 +225,7 @@ static void sha256_transform(u32 *state, const u8 *input)
a = b = c = d = e = f = g = h = t1 = t2 = 0;
memzero_explicit(W, 64 * sizeof(u32));
}
+EXPORT_SYMBOL(sha256_transform);
static void sha256_generic_block_fn(struct sha256_state *sst, u8 const *src,
int blocks)
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index 8a46202b1857..6e04f412b0c2 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -95,6 +95,7 @@ struct sha512_state {
struct shash_desc;
+extern void sha256_transform(u32 *state, const u8 *input);
extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len);
--
2.17.1
