[CRYPTO] all: Pass tfm instead of ctx to algorithms
Up until now algorithms have been happy to get a context pointer since
they know everything that's in the tfm already (e.g., alignment, block
size).
However, once we have parameterised algorithms, such information will
be specific to each tfm. So the algorithm API needs to be changed to
pass the tfm structure instead of the context pointer.
This patch is basically a text substitution. The only tricky bit is
the assembly routines that need to get the context pointer offset
through asm-offsets.h.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/khazad.c b/crypto/khazad.c
index 5b8dc9a..d4c9d36 100644
--- a/crypto/khazad.c
+++ b/crypto/khazad.c
@@ -754,10 +754,10 @@
0xccc41d14c363da5dULL, 0x5fdc7dcd7f5a6c5cULL, 0xf726ffede89d6f8eULL
};
-static int khazad_setkey(void *ctx_arg, const u8 *in_key,
- unsigned int key_len, u32 *flags)
+static int khazad_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len, u32 *flags)
{
- struct khazad_ctx *ctx = ctx_arg;
+ struct khazad_ctx *ctx = crypto_tfm_ctx(tfm);
const __be32 *key = (const __be32 *)in_key;
int r;
const u64 *S = T7;
@@ -841,15 +841,15 @@
*dst = cpu_to_be64(state);
}
-static void khazad_encrypt(void *ctx_arg, u8 *dst, const u8 *src)
+static void khazad_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct khazad_ctx *ctx = ctx_arg;
+ struct khazad_ctx *ctx = crypto_tfm_ctx(tfm);
khazad_crypt(ctx->E, dst, src);
}
-static void khazad_decrypt(void *ctx_arg, u8 *dst, const u8 *src)
+static void khazad_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct khazad_ctx *ctx = ctx_arg;
+ struct khazad_ctx *ctx = crypto_tfm_ctx(tfm);
khazad_crypt(ctx->D, dst, src);
}