if/else block default coding style question

[Valdis.Kletnieks at vt.edu]

On Sat, 08 Oct 2016 15:19:18 -0000, Nicholas Mc Guire said:

> Thats actually the cause of this mail - it just becaem obvious
> that some of these if==else are intentional

At the very least, the intentional ones need a comment similar to the
one found in file.c

> Now reporting these cases if they should be fixed makes sense
> while if this is accepted practice then it would be reporting
> false-positives, which would be bad.

Coccinelle can only warn about things that syntactically look suspicious.
The person running Coccinelle needs to have enough neurons to double-check
for comments explaining the odd usage, etc - and the person creating that
sort of code needs to leave some bread crumbs for people reading the code.
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