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[PATCH] uml: comment about cast build fix

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Explain why the casting we do to silence this warning is indeed safe.

It is because the field we're casting from, though being 64-bit wide, was filled
with a pointer in first place by ourselves.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-09-21 18:40:29 +02:00 committed by Linus Torvalds
parent ae756df8dd
commit a46c904764
1 changed files with 1 additions and 0 deletions
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arch/um/os-Linux/aio.c
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@ -144,6 +144,7 @@ static int aio_thread(void *arg)
"errno = %d\n", errno);
}
else {
/* This is safe as we've just a pointer here. */
aio = (struct aio_context *) (long) event.data;
if(update_aio(aio, event.res)){
do_aio(ctx, aio);