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Message-ID: <20241117002244.105200-11-ebiggers@kernel.org>
Date: Sat, 16 Nov 2024 16:22:43 -0800
From: Eric Biggers <ebiggers@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: linux-arch@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-crypto@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org,
x86@...nel.org,
Zhihang Shao <zhihang.shao.iscas@...il.com>,
Ard Biesheuvel <ardb@...nel.org>
Subject: [PATCH 10/11] powerpc/crc: delete obsolete crc-vpmsum_test.c
From: Eric Biggers <ebiggers@...gle.com>
Delete crc-vpmsum_test.c, since its functionality is now covered by the
new crc_kunit.c as well as the crypto subsystem's fuzz tests.
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
arch/powerpc/configs/ppc64_defconfig | 1 -
arch/powerpc/crypto/Kconfig | 9 --
arch/powerpc/crypto/Makefile | 1 -
arch/powerpc/crypto/crc-vpmsum_test.c | 133 --------------------------
4 files changed, 144 deletions(-)
delete mode 100644 arch/powerpc/crypto/crc-vpmsum_test.c
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index ec91e0104713..c6445c2b3131 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -388,11 +388,10 @@ CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_LZO=m
-CONFIG_CRYPTO_VPMSUM_TESTER=m
CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_AES_GCM_P10=m
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index 90ac79513923..e48d23fb7ea5 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -11,19 +11,10 @@ config CRYPTO_CURVE25519_PPC64
Curve25519 algorithm
Architecture: PowerPC64
- Little-endian
-config CRYPTO_VPMSUM_TESTER
- tristate "CRC32c and CRC32T10DIF hardware acceleration tester"
- depends on CRYPTO_CRC32C && CRC32_ARCH
- depends on CRYPTO_CRCT10DIF && CRC_T10DIF_ARCH
- help
- Stress test for CRC32c and CRCT10DIF algorithms implemented with
- powerpc64 AltiVec extensions (POWER8 vpmsum instructions).
- Unless you are testing these algorithms, you don't need this.
-
config CRYPTO_MD5_PPC
tristate "Digests: MD5"
depends on PPC
select CRYPTO_HASH
help
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index d2238ac7e52c..9b38f4a7bc15 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile
@@ -8,11 +8,10 @@
obj-$(CONFIG_CRYPTO_AES_PPC_SPE) += aes-ppc-spe.o
obj-$(CONFIG_CRYPTO_MD5_PPC) += md5-ppc.o
obj-$(CONFIG_CRYPTO_SHA1_PPC) += sha1-powerpc.o
obj-$(CONFIG_CRYPTO_SHA1_PPC_SPE) += sha1-ppc-spe.o
obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o
-obj-$(CONFIG_CRYPTO_VPMSUM_TESTER) += crc-vpmsum_test.o
obj-$(CONFIG_CRYPTO_AES_GCM_P10) += aes-gcm-p10-crypto.o
obj-$(CONFIG_CRYPTO_CHACHA20_P10) += chacha-p10-crypto.o
obj-$(CONFIG_CRYPTO_POLY1305_P10) += poly1305-p10-crypto.o
obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
obj-$(CONFIG_CRYPTO_CURVE25519_PPC64) += curve25519-ppc64le.o
diff --git a/arch/powerpc/crypto/crc-vpmsum_test.c b/arch/powerpc/crypto/crc-vpmsum_test.c
deleted file mode 100644
index c61a874a3a5c..000000000000
--- a/arch/powerpc/crypto/crc-vpmsum_test.c
+++ /dev/null
@@ -1,133 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * CRC vpmsum tester
- * Copyright 2017 Daniel Axtens, IBM Corporation.
- */
-
-#include <linux/crc-t10dif.h>
-#include <linux/crc32.h>
-#include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/random.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/cpufeature.h>
-#include <asm/switch_to.h>
-
-static unsigned long iterations = 10000;
-
-#define MAX_CRC_LENGTH 65535
-
-
-static int __init crc_test_init(void)
-{
- u16 crc16 = 0, verify16 = 0;
- __le32 verify32le = 0;
- unsigned char *data;
- u32 verify32 = 0;
- unsigned long i;
- __le32 crc32;
- int ret;
-
- struct crypto_shash *crct10dif_tfm;
- struct crypto_shash *crc32c_tfm;
-
- if (!cpu_has_feature(CPU_FTR_ARCH_207S))
- return -ENODEV;
-
- data = kmalloc(MAX_CRC_LENGTH, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- crct10dif_tfm = crypto_alloc_shash("crct10dif", 0, 0);
-
- if (IS_ERR(crct10dif_tfm)) {
- pr_err("Error allocating crc-t10dif\n");
- goto free_buf;
- }
-
- crc32c_tfm = crypto_alloc_shash("crc32c", 0, 0);
-
- if (IS_ERR(crc32c_tfm)) {
- pr_err("Error allocating crc32c\n");
- goto free_16;
- }
-
- do {
- SHASH_DESC_ON_STACK(crct10dif_shash, crct10dif_tfm);
- SHASH_DESC_ON_STACK(crc32c_shash, crc32c_tfm);
-
- crct10dif_shash->tfm = crct10dif_tfm;
- ret = crypto_shash_init(crct10dif_shash);
-
- if (ret) {
- pr_err("Error initing crc-t10dif\n");
- goto free_32;
- }
-
-
- crc32c_shash->tfm = crc32c_tfm;
- ret = crypto_shash_init(crc32c_shash);
-
- if (ret) {
- pr_err("Error initing crc32c\n");
- goto free_32;
- }
-
- pr_info("crc-vpmsum_test begins, %lu iterations\n", iterations);
- for (i=0; i<iterations; i++) {
- size_t offset = get_random_u32_below(16);
- size_t len = get_random_u32_below(MAX_CRC_LENGTH);
-
- if (len <= offset)
- continue;
- get_random_bytes(data, len);
- len -= offset;
-
- crypto_shash_update(crct10dif_shash, data+offset, len);
- crypto_shash_final(crct10dif_shash, (u8 *)(&crc16));
- verify16 = crc_t10dif_generic(verify16, data+offset, len);
-
-
- if (crc16 != verify16) {
- pr_err("FAILURE in CRC16: got 0x%04x expected 0x%04x (len %lu)\n",
- crc16, verify16, len);
- break;
- }
-
- crypto_shash_update(crc32c_shash, data+offset, len);
- crypto_shash_final(crc32c_shash, (u8 *)(&crc32));
- verify32 = le32_to_cpu(verify32le);
- verify32le = ~cpu_to_le32(__crc32c_le(~verify32, data+offset, len));
- if (crc32 != verify32le) {
- pr_err("FAILURE in CRC32: got 0x%08x expected 0x%08x (len %lu)\n",
- crc32, verify32, len);
- break;
- }
- cond_resched();
- }
- pr_info("crc-vpmsum_test done, completed %lu iterations\n", i);
- } while (0);
-
-free_32:
- crypto_free_shash(crc32c_tfm);
-
-free_16:
- crypto_free_shash(crct10dif_tfm);
-
-free_buf:
- kfree(data);
-
- return 0;
-}
-
-static void __exit crc_test_exit(void) {}
-
-module_init(crc_test_init);
-module_exit(crc_test_exit);
-module_param(iterations, long, 0400);
-
-MODULE_AUTHOR("Daniel Axtens <dja@...ens.net>");
-MODULE_DESCRIPTION("Vector polynomial multiply-sum CRC tester");
-MODULE_LICENSE("GPL");
--
2.47.0
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