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bpf-foreign: add an explicit, explanatory message when reference BPF program is not loaded yet

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(cherry picked from commit 228459f5d7)
(cherry picked from commit 178fe97763)
(cherry picked from commit 746e52c0ae)
This commit is contained in:
Lennart Poettering
2023-06-26 13:05:56 +02:00
committed by Luca Boccassi
parent 411e40bb72
commit 43cabc5e35
1 changed files with 4 additions and 0 deletions
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4
src/core/bpf-foreign.c
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@ -90,6 +90,10 @@ static int bpf_foreign_prepare(
assert(bpffs_path);
r = path_is_fs_type(bpffs_path, BPF_FS_MAGIC);
if (r == -ENOENT) {
log_unit_warning_errno(u, r, "bpf-foreign: foreign program %s does not exist, skipping.", bpffs_path);
return 0;
}
if (r < 0)
return log_unit_error_errno(u, r,
"bpf-foreign: Failed to determine filesystem type of %s: %m", bpffs_path);