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SubjectRe: [PATCH] SPI: improve sysfs compiler complaint handling
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> Does anyone know why the GCC folk have decided to go against decades
> of common practice here???

because it's new semantics. I was involved in this GCC feature (not in
the coding just in the asking for it) and this behavior was specifically
requested: It is called __must_check, you MUST CHECK it. It's not the
normal "unused warning", by putting the attribute on the function you
tell gcc that the result MUST be checked. Just a cast to void isn't
checking it.... so it rightfully warns.


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