| To: | "J.A. Magallon" <jamagallon@xxxxxxx> |
|---|---|
| Subject: | Re: [RFC][PATCH] net drivers and cache alignment |
| From: | Andrew Morton <akpm@xxxxxxxxx> |
| Date: | Sat, 07 Dec 2002 15:45:21 -0800 |
| Cc: | Jeff Garzik <jgarzik@xxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx |
| References: | <3DF2781D.3030209@xxxxxxxxx> <20021207.144004.45605764.davem@xxxxxxxxxx> <3DF27EE7.4010508@xxxxxxxxx> <3DF2844C.F9216283@xxxxxxxxx> <20021207233745.GE3183@xxxxxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
"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)
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