linux-kernel - Re: [PATCH] unicode: make array 'token' static const, makes object smaller

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Message-ID: <20190906153147.GA2819@mit.edu>
Date:   Fri, 6 Sep 2019 11:31:47 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Colin King <colin.king@...onical.com>
Cc:     Gabriel Krisman Bertazi <krisman@...labora.com>,
        linux-fsdevel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] unicode: make array 'token' static const, makes object
 smaller

On Fri, Sep 06, 2019 at 02:58:07PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Don't populate the array 'token' on the stack but instead make it
> static const. Makes the object code smaller by 234 bytes.
> 
> Before:
>    text	   data	    bss	    dec	    hex	filename
>    5371	    272	      0	   5643	   160b	fs/unicode/utf8-core.o
> 
> After:
>    text	   data	    bss	    dec	    hex	filename
>    5041	    368	      0	   5409	   1521	fs/unicode/utf8-core.o
> 
> (gcc version 9.2.1, amd64)
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Nice, thanks!

Reviewed-by: Theodore Ts'o <tytso@....edu>

						- Ted