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ena: Add unlikely to error checks
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Authored by osamaabb_amazon.com on Aug 20 2024, 8:46 AM.
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Details

Reviewers
cperciva
Summary

The unlikely mechanism is used to reduce pipe flush,
caused by a wrong branch prediction.
Moreover, it increases readability by wrapping unexpected errors.
This commit adds unlikely to error checks that are unlikely to happen.

Approved by: cperciva
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

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Repository
rG FreeBSD src repository
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Build Status
Buildable 59074
Build 55961: arc lint + arc unit