Re: [PATCH RFC] Remove useless return variables

From: Andi Kleen
Date: Sun May 18 2014 - 01:05:20 EST


Peter Senna Tschudin <peter.senna@xxxxxxxxx> writes:

> This patch remove variables that are initialized with a constant,
> are never updated, and are only used as parameter of return.
> Return the constant instead of using a variable.

This ret variable pattern is pretty standard in Linux, as it makes it
easier to add new code that may trigger new errors
(using the usual "goto forest" error handling pattern)

I don't see any benefit in whole-sale removing it. The compiler
doesn't care about it and will generate the same code in any
case.

-Andi

--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/