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[SCSI] aacraid: resolve compiler warnings using ptrdiff_t

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Unsigned long is not always the same size as a pointer, namely on 32 bit
systems with 64 bit address space. Ptrdiff_t is the same size as a
pointer in all configurations. By using ptrdiff_t we can mitigate the
warning messages on these configurations. There should be no side
effects of this patch.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Salyzyn, Mark
2007-03-27 15:07:28 -04:00
committed by James Bottomley
parent 10c9a017f1
commit 4dfb7cbef8
3 changed files with 5 additions and 6 deletions
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4
drivers/scsi/aacraid/commctrl.c
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@@ -391,10 +391,8 @@ static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
/*
* Extract the fibctx from the input parameters
*/
if (fibctx->unique == (u32)(unsigned long)arg) {
/* We found a winner */
if (fibctx->unique == (u32)(ptrdiff_t)arg) /* We found a winner */
break;
}
entry = entry->next;
fibctx = NULL;
}