Re: [PATCH] Mark i2o config broken on 64-bit platforms.

From: Jeff Garzik
Date: Wed Jul 09 2008 - 11:47:35 EST


Alan Cox wrote:
On Wed, 09 Jul 2008 12:35:47 +0100
David Howells <dhowells@xxxxxxxxxx> wrote:

Mark i2o config broken on 64-bit platforms as it generates these:

In file included from drivers/message/i2o/config-osm.c:39:
drivers/message/i2o/i2o_config.c: In function 'i2o_cfg_passthru':
drivers/message/i2o/i2o_config.c:889: warning: cast to pointer from integer of different size
drivers/message/i2o/i2o_config.c:945: warning: cast to pointer from integer of different size

which are apparently non-trivial to fix (eg: inserting a cast through unsigned
long is not correct according to Linus). This would be due to struct
sg_simple_element only having a 32-bit addr_bus value.

There are also a number of "TODO 64bit fix" comments.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>


NAK - it appears to be broken for 64bit user space only

Agreed.

That was the conclusion when I joined the cast of thousands who tried to kill this warning, and found that out...

Jeff




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