threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/* 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
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/printk.h>
|
|
#include <linux/bug.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;
|
|
|
|
BUILD_BUG_ON(!__builtin_constant_p(nobs_len) ||
|
|
nobs_len >= BITS_PER_LONG);
|
|
|
|
if (!IS_ENABLED(CONFIG_ZINC_SELFTEST))
|
|
return true;
|
|
|
|
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
|
|
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)
|
|
pr_info("%s self-tests: pass\n", name);
|
|
|
|
return !WARN_ON(largest_subset != set);
|
|
}
|
|
|
|
#endif
|