diff options
| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /lib/raid/raid6/algos.h | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'lib/raid/raid6/algos.h')
| -rw-r--r-- | lib/raid/raid6/algos.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lib/raid/raid6/algos.h b/lib/raid/raid6/algos.h new file mode 100644 index 000000000..43f636be1 --- /dev/null +++ b/lib/raid/raid6/algos.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2003 H. Peter Anvin - All Rights Reserved + */ +#ifndef _PQ_IMPL_H +#define _PQ_IMPL_H + +#include <linux/init.h> +#include <linux/raid/pq_tables.h> + +/* Routine choices */ +struct raid6_calls { + const char *name; + void (*gen_syndrome)(int disks, size_t bytes, void **ptrs); + void (*xor_syndrome)(int disks, int start, int stop, size_t bytes, + void **ptrs); +}; + +struct raid6_recov_calls { + const char *name; + void (*data2)(int disks, size_t bytes, int faila, int failb, + void **ptrs); + void (*datap)(int disks, size_t bytes, int faila, void **ptrs); +}; + +void __init raid6_algo_add(const struct raid6_calls *algo); +void __init raid6_algo_add_default(void); +void __init raid6_recov_algo_add(const struct raid6_recov_calls *algo); + +/* for the kunit test */ +const struct raid6_calls *raid6_algo_find(unsigned int idx); +const struct raid6_recov_calls *raid6_recov_algo_find(unsigned int idx); + +/* generic implementations */ +extern const struct raid6_calls raid6_intx1; +extern const struct raid6_calls raid6_intx2; +extern const struct raid6_calls raid6_intx4; +extern const struct raid6_calls raid6_intx8; +extern const struct raid6_recov_calls raid6_recov_intx1; + +#endif /* _PQ_IMPL_H */ |