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Message-ID: <20250426065041.1551914-13-ebiggers@kernel.org>
Date: Fri, 25 Apr 2025 23:50:38 -0700
From: Eric Biggers <ebiggers@...nel.org>
To: linux-crypto@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
linux-arch@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mips@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org,
linux-riscv@...ts.infradead.org,
sparclinux@...r.kernel.org,
linux-s390@...r.kernel.org,
x86@...nel.org,
Ard Biesheuvel <ardb@...nel.org>,
"Jason A . Donenfeld " <Jason@...c4.com>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 12/13] crypto: sha256 - remove sha256_base.h
From: Eric Biggers <ebiggers@...gle.com>
sha256_base.h is no longer used, so remove it.
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
include/crypto/sha256_base.h | 183 -----------------------------------
1 file changed, 183 deletions(-)
delete mode 100644 include/crypto/sha256_base.h
diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h
deleted file mode 100644
index 6878fb9c26c04..0000000000000
--- a/include/crypto/sha256_base.h
+++ /dev/null
@@ -1,183 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * sha256_base.h - core logic for SHA-256 implementations
- *
- * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@...aro.org>
- */
-
-#ifndef _CRYPTO_SHA256_BASE_H
-#define _CRYPTO_SHA256_BASE_H
-
-#include <crypto/internal/hash.h>
-#include <crypto/internal/sha2.h>
-#include <linux/math.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/unaligned.h>
-
-typedef void (sha256_block_fn)(struct crypto_sha256_state *sst, u8 const *src,
- int blocks);
-
-static inline int sha224_base_init(struct shash_desc *desc)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- sha224_init(sctx);
- return 0;
-}
-
-static inline int sha256_base_init(struct shash_desc *desc)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- sha256_init(sctx);
- return 0;
-}
-
-static inline int lib_sha256_base_do_update(struct sha256_state *sctx,
- const u8 *data,
- unsigned int len,
- sha256_block_fn *block_fn)
-{
- unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
- struct crypto_sha256_state *state = (void *)sctx;
-
- sctx->count += len;
-
- if (unlikely((partial + len) >= SHA256_BLOCK_SIZE)) {
- int blocks;
-
- if (partial) {
- int p = SHA256_BLOCK_SIZE - partial;
-
- memcpy(sctx->buf + partial, data, p);
- data += p;
- len -= p;
-
- block_fn(state, sctx->buf, 1);
- }
-
- blocks = len / SHA256_BLOCK_SIZE;
- len %= SHA256_BLOCK_SIZE;
-
- if (blocks) {
- block_fn(state, data, blocks);
- data += blocks * SHA256_BLOCK_SIZE;
- }
- partial = 0;
- }
- if (len)
- memcpy(sctx->buf + partial, data, len);
-
- return 0;
-}
-
-static inline int lib_sha256_base_do_update_blocks(
- struct crypto_sha256_state *sctx, const u8 *data, unsigned int len,
- sha256_block_fn *block_fn)
-{
- unsigned int remain = len - round_down(len, SHA256_BLOCK_SIZE);
-
- sctx->count += len - remain;
- block_fn(sctx, data, len / SHA256_BLOCK_SIZE);
- return remain;
-}
-
-static inline int sha256_base_do_update_blocks(
- struct shash_desc *desc, const u8 *data, unsigned int len,
- sha256_block_fn *block_fn)
-{
- return lib_sha256_base_do_update_blocks(shash_desc_ctx(desc), data,
- len, block_fn);
-}
-
-static inline int lib_sha256_base_do_finup(struct crypto_sha256_state *sctx,
- const u8 *src, unsigned int len,
- sha256_block_fn *block_fn)
-{
- unsigned int bit_offset = SHA256_BLOCK_SIZE / 8 - 1;
- union {
- __be64 b64[SHA256_BLOCK_SIZE / 4];
- u8 u8[SHA256_BLOCK_SIZE * 2];
- } block = {};
-
- if (len >= bit_offset * 8)
- bit_offset += SHA256_BLOCK_SIZE / 8;
- memcpy(&block, src, len);
- block.u8[len] = 0x80;
- sctx->count += len;
- block.b64[bit_offset] = cpu_to_be64(sctx->count << 3);
- block_fn(sctx, block.u8, (bit_offset + 1) * 8 / SHA256_BLOCK_SIZE);
- memzero_explicit(&block, sizeof(block));
-
- return 0;
-}
-
-static inline int sha256_base_do_finup(struct shash_desc *desc,
- const u8 *src, unsigned int len,
- sha256_block_fn *block_fn)
-{
- struct crypto_sha256_state *sctx = shash_desc_ctx(desc);
-
- if (len >= SHA256_BLOCK_SIZE) {
- int remain;
-
- remain = lib_sha256_base_do_update_blocks(sctx, src, len,
- block_fn);
- src += len - remain;
- len = remain;
- }
- return lib_sha256_base_do_finup(sctx, src, len, block_fn);
-}
-
-static inline int lib_sha256_base_do_finalize(struct sha256_state *sctx,
- sha256_block_fn *block_fn)
-{
- unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
- struct crypto_sha256_state *state = (void *)sctx;
-
- sctx->count -= partial;
- return lib_sha256_base_do_finup(state, sctx->buf, partial, block_fn);
-}
-
-static inline int sha256_base_do_finalize(struct shash_desc *desc,
- sha256_block_fn *block_fn)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- return lib_sha256_base_do_finalize(sctx, block_fn);
-}
-
-static inline int __sha256_base_finish(u32 state[SHA256_DIGEST_SIZE / 4],
- u8 *out, unsigned int digest_size)
-{
- __be32 *digest = (__be32 *)out;
- int i;
-
- for (i = 0; digest_size > 0; i++, digest_size -= sizeof(__be32))
- put_unaligned_be32(state[i], digest++);
- return 0;
-}
-
-static inline void lib_sha256_base_finish(struct sha256_state *sctx, u8 *out,
- unsigned int digest_size)
-{
- __sha256_base_finish(sctx->state, out, digest_size);
- memzero_explicit(sctx, sizeof(*sctx));
-}
-
-static inline int sha256_base_finish(struct shash_desc *desc, u8 *out)
-{
- unsigned int digest_size = crypto_shash_digestsize(desc->tfm);
- struct crypto_sha256_state *sctx = shash_desc_ctx(desc);
-
- return __sha256_base_finish(sctx->state, out, digest_size);
-}
-
-static inline void sha256_transform_blocks(struct crypto_sha256_state *sst,
- const u8 *input, int blocks)
-{
- sha256_blocks_generic(sst->state, input, blocks);
-}
-
-#endif /* _CRYPTO_SHA256_BASE_H */
--
2.49.0
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