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bpf: use bitfields for simple per-subprog bool flags

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We have a bunch of bool flags for each subprog. Instead of wasting bytes
for them, use bitfields instead.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231204233931.49758-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko 2023-12-04 15:39:22 -08:00 committed by Alexei Starovoitov
parent 1a1ad782dc
commit 406a6fa44b
1 changed files with 6 additions and 6 deletions
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12
include/linux/bpf_verifier.h
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@ -611,12 +611,12 @@ struct bpf_subprog_info {
u32 start; /* insn idx of function entry point */
u32 linfo_idx; /* The idx to the main_prog->aux->linfo */
u16 stack_depth; /* max. stack depth used by this function */
bool has_tail_call;
bool tail_call_reachable;
bool has_ld_abs;
bool is_cb;
bool is_async_cb;
bool is_exception_cb;
bool has_tail_call: 1;
bool tail_call_reachable: 1;
bool has_ld_abs: 1;
bool is_cb: 1;
bool is_async_cb: 1;
bool is_exception_cb: 1;
};
struct bpf_verifier_env;