From: Eric Biggers <ebiggers@kernel.org>
Date: Sat, 21 Mar 2026 04:09:33 +0000 (-0700)
Subject: crypto: sm3 - Remove sm3_base.h
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d7f2a6ed598e82b07582d4f5122f66111ef5c00;p=thirdparty%2Fkernel%2Fstable.git

crypto: sm3 - Remove sm3_base.h

Remove include/crypto/sm3_base.h, since it's no longer used.  The
corresponding logic was reimplemented in a central place in lib/crypto/.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20260321040935.410034-11-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---

diff --git a/include/crypto/sm3_base.h b/include/crypto/sm3_base.h
deleted file mode 100644
index 9fa995617495..000000000000
--- a/include/crypto/sm3_base.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * sm3_base.h - core logic for SM3 implementations
- *
- * Copyright (C) 2017 ARM Limited or its affiliates.
- * Written by Gilad Ben-Yossef <gilad@benyossef.com>
- */
-
-#ifndef _CRYPTO_SM3_BASE_H
-#define _CRYPTO_SM3_BASE_H
-
-#include <crypto/internal/hash.h>
-#include <crypto/sm3.h>
-#include <linux/math.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/unaligned.h>
-
-typedef void (sm3_block_fn)(struct sm3_state *sst, u8 const *src, int blocks);
-
-static inline int sm3_base_init(struct shash_desc *desc)
-{
-	struct sm3_state *sctx = shash_desc_ctx(desc);
-
-	sctx->state[0] = SM3_IVA;
-	sctx->state[1] = SM3_IVB;
-	sctx->state[2] = SM3_IVC;
-	sctx->state[3] = SM3_IVD;
-	sctx->state[4] = SM3_IVE;
-	sctx->state[5] = SM3_IVF;
-	sctx->state[6] = SM3_IVG;
-	sctx->state[7] = SM3_IVH;
-	sctx->count = 0;
-	return 0;
-}
-
-static inline int sm3_base_do_update_blocks(struct shash_desc *desc,
-					    const u8 *data, unsigned int len,
-					    sm3_block_fn *block_fn)
-{
-	unsigned int remain = len - round_down(len, SM3_BLOCK_SIZE);
-	struct sm3_state *sctx = shash_desc_ctx(desc);
-
-	sctx->count += len - remain;
-	block_fn(sctx, data, len / SM3_BLOCK_SIZE);
-	return remain;
-}
-
-static inline int sm3_base_do_finup(struct shash_desc *desc,
-				    const u8 *src, unsigned int len,
-				    sm3_block_fn *block_fn)
-{
-	unsigned int bit_offset = SM3_BLOCK_SIZE / 8 - 1;
-	struct sm3_state *sctx = shash_desc_ctx(desc);
-	union {
-		__be64 b64[SM3_BLOCK_SIZE / 4];
-		u8 u8[SM3_BLOCK_SIZE * 2];
-	} block = {};
-
-	if (len >= SM3_BLOCK_SIZE) {
-		int remain;
-
-		remain = sm3_base_do_update_blocks(desc, src, len, block_fn);
-		src += len - remain;
-		len = remain;
-	}
-
-	if (len >= bit_offset * 8)
-		bit_offset += SM3_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 / SM3_BLOCK_SIZE);
-	memzero_explicit(&block, sizeof(block));
-
-	return 0;
-}
-
-static inline int sm3_base_finish(struct shash_desc *desc, u8 *out)
-{
-	struct sm3_state *sctx = shash_desc_ctx(desc);
-	__be32 *digest = (__be32 *)out;
-	int i;
-
-	for (i = 0; i < SM3_DIGEST_SIZE / sizeof(__be32); i++)
-		put_unaligned_be32(sctx->state[i], digest++);
-	return 0;
-}
-
-#endif /* _CRYPTO_SM3_BASE_H */