linux-kernel - Re: [PATCH 3/3] tty: Mark goldfish_tty_line

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Message-ID: <CAOGAQerbVvG64uguOQ0nxv0-BPSMQxm6FH9AGupNm62DXtzLHQ@mail.gmail.com>
Date:   Tue, 24 Jul 2018 13:00:12 -0700
From:   Roman Kiryanov <rkir@...gle.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Todd Kjos <tkjos@...gle.com>
Subject: Re: [PATCH 3/3] tty: Mark goldfish_tty_line_count as const

> Then why not just make it a #define?

With "const" the diff is smaller.

> No need to waste the memory of a variable, right?

I believe the compiler will produce the same binary for const and for
#define if optimization is enabled.