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crypto: tcrypt - avoid signed overflow in byte count 

[ Upstream commit 303fd3e1c771077e32e96e5788817f025f0067e2 ]

The signed long type used for printing the number of bytes processed in
tcrypt benchmarks limits the range to -/+ 2 GiB, which is not sufficient
to cover the performance of common accelerated ciphers such as AES-NI
when benchmarked with sec=1. So switch to u64 instead.

While at it, fix up a missing printk->pr_cont conversion in the AEAD
benchmark.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ard Biesheuvel 2020-12-08 15:34:41 +01:00 committed by Greg Kroah-Hartman
parent 9f8d3e4b8a
commit a8d46a3feb
1 changed files with 10 additions and 10 deletions
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20
crypto/tcrypt.c
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@ -198,8 +198,8 @@ static int test_mb_aead_jiffies(struct test_mb_aead_data *data, int enc,
goto out;
}
pr_cont("%d operations in %d seconds (%ld bytes)\n",
bcount * num_mb, secs, (long)bcount * blen * num_mb);
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount * num_mb, secs, (u64)bcount * blen * num_mb);
out:
kfree(rc);
@ -468,8 +468,8 @@ static int test_aead_jiffies(struct aead_request *req, int enc,
return ret;
}
printk("%d operations in %d seconds (%ld bytes)\n",
bcount, secs, (long)bcount * blen);
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount, secs, (u64)bcount * blen);
return 0;
}
@ -759,8 +759,8 @@ static int test_mb_ahash_jiffies(struct test_mb_ahash_data *data, int blen,
goto out;
}
pr_cont("%d operations in %d seconds (%ld bytes)\n",
bcount * num_mb, secs, (long)bcount * blen * num_mb);
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount * num_mb, secs, (u64)bcount * blen * num_mb);
out:
kfree(rc);
@ -1196,8 +1196,8 @@ static int test_mb_acipher_jiffies(struct test_mb_skcipher_data *data, int enc,
goto out;
}
pr_cont("%d operations in %d seconds (%ld bytes)\n",
bcount * num_mb, secs, (long)bcount * blen * num_mb);
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount * num_mb, secs, (u64)bcount * blen * num_mb);
out:
kfree(rc);
@ -1434,8 +1434,8 @@ static int test_acipher_jiffies(struct skcipher_request *req, int enc,
return ret;
}
pr_cont("%d operations in %d seconds (%ld bytes)\n",
bcount, secs, (long)bcount * blen);
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount, secs, (u64)bcount * blen);
return 0;
}