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authorAndrii Nakryiko <[email protected]>2023-12-04 15:39:21 -0800
committerAlexei Starovoitov <[email protected]>2023-12-11 19:23:32 -0800
commit1a1ad782dcbbacd9e8d4e2e7ff1bf14d1db80727 (patch)
tree2ef700bf4b474dc18dec4fcb804892f6b0887edd /tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c
parent22b769bb4f87060774bfdd6facbab438ed3b8453 (diff)
bpf: tidy up exception callback management a bit
Use the fact that we are passing subprog index around and have a corresponding struct bpf_subprog_info in bpf_verifier_env for each subprogram. We don't need to separately pass around a flag whether subprog is exception callback or not, each relevant verifier function can determine this using provided subprog index if we maintain bpf_subprog_info properly. Also move out exception callback-specific logic from btf_prepare_func_args(), keeping it generic. We can enforce all these restriction right before exception callback verification pass. We add out parameter, arg_cnt, for now, but this will be unnecessary with subsequent refactoring and will be removed. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Eduard Zingerman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
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