kernel: Add value helpers #1483
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This pull request introduces value_of and value_of_utf8 helper methods to the Cmdline struct, simplifying the process of retrieving kernel argument values. The value_of_utf8 method correctly handles potential UTF-8 errors, which is an improvement over the value_lossy method it replaces in one instance. The changes are well-tested. My main feedback is a small refactoring suggestion to improve code reuse.
Many cases want to find the value of an argument, no need to return the key back to them. Also IMO `value_lossy()` is a HUGE trap because aside from logging it's almost never the right thing to do. I plan to remove it in a followup. So this also adds a `utf8` helper that returns an error, and changes one case to use it. Signed-off-by: Colin Walters <[email protected]>
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jeckersb
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👍 very nice improvement!
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Many cases want to find the value of an argument, no need to return the key back to them.
Also IMO
value_lossy()is a HUGE trap because aside from logging it's almost never the right thing to do. I plan to remove it in a followup.So this also adds a
utf8helper that returns an error, and changes one case to use it.