scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 240 insertions, 0 deletions

diff --git a/crypto/sha1.c b/crypto/sha1.c
new file mode 100644
index 000000000..4fbf61cf0
--- /dev/null
+++ b/crypto/sha1.c
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Crypto API support for SHA-1 and HMAC-SHA1
+ *
+ * Copyright (c) Alan Smithee.
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
+ * Copyright 2025 Google LLC
+ */
+#include <crypto/internal/hash.h>
+#include <crypto/sha1.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+/*
+ * Export and import functions.  crypto_shash wants a particular format that
+ * matches that used by some legacy drivers.  It currently is the same as the
+ * library SHA context, except the value in bytecount must be block-aligned and
+ * the remainder must be stored in an extra u8 appended to the struct.
+ */
+
+#define SHA1_SHASH_STATE_SIZE (sizeof(struct sha1_ctx) + 1)
+static_assert(sizeof(struct sha1_ctx) == sizeof(struct sha1_state));
+static_assert(offsetof(struct sha1_ctx, state) == offsetof(struct sha1_state, state));
+static_assert(offsetof(struct sha1_ctx, bytecount) == offsetof(struct sha1_state, count));
+static_assert(offsetof(struct sha1_ctx, buf) == offsetof(struct sha1_state, buffer));
+
+static int __crypto_sha1_export(const struct sha1_ctx *ctx0, void *out)
+{
+	struct sha1_ctx ctx = *ctx0;
+	unsigned int partial;
+	u8 *p = out;
+
+	partial = ctx.bytecount % SHA1_BLOCK_SIZE;
+	ctx.bytecount -= partial;
+	memcpy(p, &ctx, sizeof(ctx));
+	p += sizeof(ctx);
+	*p = partial;
+	return 0;
+}
+
+static int __crypto_sha1_import(struct sha1_ctx *ctx, const void *in)
+{
+	const u8 *p = in;
+
+	memcpy(ctx, p, sizeof(*ctx));
+	p += sizeof(*ctx);
+	ctx->bytecount += *p;
+	return 0;
+}
+
+static int __crypto_sha1_export_core(const struct sha1_ctx *ctx, void *out)
+{
+	memcpy(out, ctx, offsetof(struct sha1_ctx, buf));
+	return 0;
+}
+
+static int __crypto_sha1_import_core(struct sha1_ctx *ctx, const void *in)
+{
+	memcpy(ctx, in, offsetof(struct sha1_ctx, buf));
+	return 0;
+}
+
+const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE] = {
+	0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d,
+	0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90,
+	0xaf, 0xd8, 0x07, 0x09
+};
+EXPORT_SYMBOL_GPL(sha1_zero_message_hash);
+
+#define SHA1_CTX(desc) ((struct sha1_ctx *)shash_desc_ctx(desc))
+
+static int crypto_sha1_init(struct shash_desc *desc)
+{
+	sha1_init(SHA1_CTX(desc));
+	return 0;
+}
+
+static int crypto_sha1_update(struct shash_desc *desc,
+			      const u8 *data, unsigned int len)
+{
+	sha1_update(SHA1_CTX(desc), data, len);
+	return 0;
+}
+
+static int crypto_sha1_final(struct shash_desc *desc, u8 *out)
+{
+	sha1_final(SHA1_CTX(desc), out);
+	return 0;
+}
+
+static int crypto_sha1_digest(struct shash_desc *desc,
+			      const u8 *data, unsigned int len, u8 *out)
+{
+	sha1(data, len, out);
+	return 0;
+}
+
+static int crypto_sha1_export(struct shash_desc *desc, void *out)
+{
+	return __crypto_sha1_export(SHA1_CTX(desc), out);
+}
+
+static int crypto_sha1_import(struct shash_desc *desc, const void *in)
+{
+	return __crypto_sha1_import(SHA1_CTX(desc), in);
+}
+
+static int crypto_sha1_export_core(struct shash_desc *desc, void *out)
+{
+	return __crypto_sha1_export_core(SHA1_CTX(desc), out);
+}
+
+static int crypto_sha1_import_core(struct shash_desc *desc, const void *in)
+{
+	return __crypto_sha1_import_core(SHA1_CTX(desc), in);
+}
+
+#define HMAC_SHA1_KEY(tfm) ((struct hmac_sha1_key *)crypto_shash_ctx(tfm))
+#define HMAC_SHA1_CTX(desc) ((struct hmac_sha1_ctx *)shash_desc_ctx(desc))
+
+static int crypto_hmac_sha1_setkey(struct crypto_shash *tfm,
+				   const u8 *raw_key, unsigned int keylen)
+{
+	hmac_sha1_preparekey(HMAC_SHA1_KEY(tfm), raw_key, keylen);
+	return 0;
+}
+
+static int crypto_hmac_sha1_init(struct shash_desc *desc)
+{
+	hmac_sha1_init(HMAC_SHA1_CTX(desc), HMAC_SHA1_KEY(desc->tfm));
+	return 0;
+}
+
+static int crypto_hmac_sha1_update(struct shash_desc *desc,
+				   const u8 *data, unsigned int len)
+{
+	hmac_sha1_update(HMAC_SHA1_CTX(desc), data, len);
+	return 0;
+}
+
+static int crypto_hmac_sha1_final(struct shash_desc *desc, u8 *out)
+{
+	hmac_sha1_final(HMAC_SHA1_CTX(desc), out);
+	return 0;
+}
+
+static int crypto_hmac_sha1_digest(struct shash_desc *desc,
+				   const u8 *data, unsigned int len, u8 *out)
+{
+	hmac_sha1(HMAC_SHA1_KEY(desc->tfm), data, len, out);
+	return 0;
+}
+
+static int crypto_hmac_sha1_export(struct shash_desc *desc, void *out)
+{
+	return __crypto_sha1_export(&HMAC_SHA1_CTX(desc)->sha_ctx, out);
+}
+
+static int crypto_hmac_sha1_import(struct shash_desc *desc, const void *in)
+{
+	struct hmac_sha1_ctx *ctx = HMAC_SHA1_CTX(desc);
+
+	ctx->ostate = HMAC_SHA1_KEY(desc->tfm)->ostate;
+	return __crypto_sha1_import(&ctx->sha_ctx, in);
+}
+
+static int crypto_hmac_sha1_export_core(struct shash_desc *desc, void *out)
+{
+	return __crypto_sha1_export_core(&HMAC_SHA1_CTX(desc)->sha_ctx, out);
+}
+
+static int crypto_hmac_sha1_import_core(struct shash_desc *desc, const void *in)
+{
+	struct hmac_sha1_ctx *ctx = HMAC_SHA1_CTX(desc);
+
+	ctx->ostate = HMAC_SHA1_KEY(desc->tfm)->ostate;
+	return __crypto_sha1_import_core(&ctx->sha_ctx, in);
+}
+
+static struct shash_alg algs[] = {
+	{
+		.base.cra_name		= "sha1",
+		.base.cra_driver_name	= "sha1-lib",
+		.base.cra_priority	= 300,
+		.base.cra_blocksize	= SHA1_BLOCK_SIZE,
+		.base.cra_module	= THIS_MODULE,
+		.digestsize		= SHA1_DIGEST_SIZE,
+		.init			= crypto_sha1_init,
+		.update			= crypto_sha1_update,
+		.final			= crypto_sha1_final,
+		.digest			= crypto_sha1_digest,
+		.export			= crypto_sha1_export,
+		.import			= crypto_sha1_import,
+		.export_core		= crypto_sha1_export_core,
+		.import_core		= crypto_sha1_import_core,
+		.descsize		= sizeof(struct sha1_ctx),
+		.statesize		= SHA1_SHASH_STATE_SIZE,
+	},
+	{
+		.base.cra_name		= "hmac(sha1)",
+		.base.cra_driver_name	= "hmac-sha1-lib",
+		.base.cra_priority	= 300,
+		.base.cra_blocksize	= SHA1_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct hmac_sha1_key),
+		.base.cra_module	= THIS_MODULE,
+		.digestsize		= SHA1_DIGEST_SIZE,
+		.setkey			= crypto_hmac_sha1_setkey,
+		.init			= crypto_hmac_sha1_init,
+		.update			= crypto_hmac_sha1_update,
+		.final			= crypto_hmac_sha1_final,
+		.digest			= crypto_hmac_sha1_digest,
+		.export			= crypto_hmac_sha1_export,
+		.import			= crypto_hmac_sha1_import,
+		.export_core		= crypto_hmac_sha1_export_core,
+		.import_core		= crypto_hmac_sha1_import_core,
+		.descsize		= sizeof(struct hmac_sha1_ctx),
+		.statesize		= SHA1_SHASH_STATE_SIZE,
+	},
+};
+
+static int __init crypto_sha1_mod_init(void)
+{
+	return crypto_register_shashes(algs, ARRAY_SIZE(algs));
+}
+module_init(crypto_sha1_mod_init);
+
+static void __exit crypto_sha1_mod_exit(void)
+{
+	crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
+}
+module_exit(crypto_sha1_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Crypto API support for SHA-1 and HMAC-SHA1");
+
+MODULE_ALIAS_CRYPTO("sha1");
+MODULE_ALIAS_CRYPTO("sha1-lib");
+MODULE_ALIAS_CRYPTO("hmac(sha1)");
+MODULE_ALIAS_CRYPTO("hmac-sha1-lib");