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module/crypto/zinc/selftest/run.h
- This file was added.
| /* SPDX-License-Identifier: GPL-2.0 OR MIT */ | |||||
| /* | |||||
| * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. | |||||
| */ | |||||
| #ifndef _ZINC_SELFTEST_RUN_H | |||||
| #define _ZINC_SELFTEST_RUN_H | |||||
| static inline bool selftest_run(const char *name, bool (*selftest)(void), | |||||
| bool *const nobs[], unsigned int nobs_len) | |||||
| { | |||||
| unsigned long set = 0, subset = 0, largest_subset = 0; | |||||
| unsigned int i; | |||||
| bool failed; | |||||
| MPASS(nobs_len <= BITS_PER_LONG); | |||||
| failed = false; | |||||
| for (i = 0; i < nobs_len; ++i) | |||||
| set |= ((unsigned long)*nobs[i]) << i; | |||||
| do { | |||||
| for (i = 0; i < nobs_len; ++i) | |||||
| *nobs[i] = BIT(i) & subset; | |||||
| if (selftest()) | |||||
| largest_subset = max(subset, largest_subset); | |||||
| else { | |||||
| failed = true; | |||||
| pr_err("%s self-test combination 0x%lx: FAIL\n", name, | |||||
| subset); | |||||
| } | |||||
| subset = (subset - set) & set; | |||||
| } while (subset); | |||||
| for (i = 0; i < nobs_len; ++i) | |||||
| *nobs[i] = BIT(i) & largest_subset; | |||||
| if (largest_subset == set && !failed) | |||||
| pr_info("%s self-tests: pass\n", name); | |||||
| return !WARN_ON(largest_subset != set); | |||||
| } | |||||
| #endif | |||||