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72ed076abf
Add tests for freplace behavior with the combination of sleepable and non-sleepable global subprogs. The changes_pkt_data selftest did all the hardwork, so simply rename it and include new support for more summarization tests for might_sleep bit. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250301151846.1552362-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
33 lines
509 B
C
33 lines
509 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <vmlinux.h>
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#include <bpf/bpf_helpers.h>
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SEC("?freplace")
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long changes_pkt_data(struct __sk_buff *sk)
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{
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return bpf_skb_pull_data(sk, 0);
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}
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SEC("?freplace")
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long does_not_change_pkt_data(struct __sk_buff *sk)
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{
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return 0;
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}
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SEC("?freplace")
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long might_sleep(struct pt_regs *ctx)
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{
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int i;
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bpf_copy_from_user(&i, sizeof(i), NULL);
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return i;
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}
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SEC("?freplace")
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long does_not_sleep(struct pt_regs *ctx)
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{
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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