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Fix XDP ifindex sign-conversion warning#153

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yunwei37 merged 2 commits intomainfrom
issue-149-xdp-ifindex-warning
Mar 6, 2026
Merged

Fix XDP ifindex sign-conversion warning#153
yunwei37 merged 2 commits intomainfrom
issue-149-xdp-ifindex-warning

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@yunwei37 yunwei37 commented Mar 6, 2026

Closes #149

Summary

  • store if_nametoindex() in an unsigned value
  • reject values that cannot fit in the libbpf API
  • cast only at the attach call site to avoid the sign-conversion warning

Testing

  • make -C runtime/cpp

@yunwei37 yunwei37 merged commit 851bad1 into main Mar 6, 2026
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[BUG] C++ runtime emits sign-conversion warning for XDP ifindex

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