Subject: Re: [RFC][PATCH] net drivers and cache alignment

From: Andrew Morton <[email-masked]>
Date: Sat, 07 Dec 2002 15:45:21 -0800

"J.A. Magallon" wrote:
> 
> #define __cacheline_start   struct { } ____cacheline_aligned;

That will generate a warning on faster^Wolder versions of gcc.

mnm:/home/akpm> gcc t2.c
t2.c:11: warning: unnamed struct/union that defines no instances
t2.c:15: warning: unnamed struct/union that defines no instances
mnm:/home/akpm> gcc -v 
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/specs
gcc version 2.95.3 20010315 (release)