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powerpc/crc: delete obsolete crc-vpmsum_test.c

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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.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Vinicius Peixoto <vpeixoto@lkcamp.dev>
Link: https://lore.kernel.org/r/20241202012056.209768-12-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers 2024-12-01 17:20:55 -08:00
parent 87fe0a1310
commit db1fda2d4c
4 changed files with 0 additions and 144 deletions
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1
arch/powerpc/configs/ppc64_defconfig
View file

@ -389,7 +389,6 @@ 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

9
arch/powerpc/crypto/Kconfig
View file

@ -13,15 +13,6 @@ config CRYPTO_CURVE25519_PPC64
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

1
arch/powerpc/crypto/Makefile
View file

@ -10,7 +10,6 @@ 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

133
arch/powerpc/crypto/crc-vpmsum_test.c
View file

@ -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@axtens.net>");
MODULE_DESCRIPTION("Vector polynomial multiply-sum CRC tester");
MODULE_LICENSE("GPL");