From 29c302a2e265a356434b005155990a9e766db75d Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Wed, 13 Dec 2023 11:08:35 -0800 Subject: libbpf: further decouple feature checking logic from bpf_object Add feat_supported() helper that accepts feature cache instead of bpf_object. This allows low-level code in bpf.c to not know or care about higher-level concept of bpf_object, yet it will be able to utilize custom feature checking in cases where BPF token might influence the outcome. Acked-by: John Fastabend Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20231213190842.3844987-4-andrii@kernel.org Signed-off-by: Alexei Starovoitov --- tools/lib/bpf/libbpf_internal.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'tools/lib/bpf/libbpf_internal.h') diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h index b5d334754e5d..754a432335e4 100644 --- a/tools/lib/bpf/libbpf_internal.h +++ b/tools/lib/bpf/libbpf_internal.h @@ -360,8 +360,11 @@ enum kern_feature_id { __FEAT_CNT, }; -int probe_memcg_account(void); +struct kern_feature_cache; +bool feat_supported(struct kern_feature_cache *cache, enum kern_feature_id feat_id); bool kernel_supports(const struct bpf_object *obj, enum kern_feature_id feat_id); + +int probe_memcg_account(void); int bump_rlimit_memlock(void); int parse_cpu_mask_str(const char *s, bool **mask, int *mask_sz); -- cgit