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7559a7a84e
Add a selftest to confirm the issue, which gets -EINVAL when update attached freplace prog to prog_array map, has been fixed. cd tools/testing/selftests/bpf; ./test_progs -t tailcalls 328/25 tailcalls/tailcall_freplace:OK 328 tailcalls:OK Summary: 1/25 PASSED, 0 SKIPPED, 0 FAILED Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20240728114612.48486-3-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
23 lines
319 B
C
23 lines
319 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include "bpf_misc.h"
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__noinline
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int subprog(struct __sk_buff *skb)
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{
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int ret = 1;
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__sink(ret);
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return ret;
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}
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SEC("tc")
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int entry_tc(struct __sk_buff *skb)
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{
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return subprog(skb);
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}
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char __license[] SEC("license") = "GPL";
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