On Thu, Oct 25, 2007 at 04:06:16AM -0400, Jeff Garzik wrote:drivers/isdn/capi/capidrv.c: In function 'if_sendbuf':
drivers/isdn/capi/capidrv.c:1865: warning: cast from pointer to integer
of different size
We are passing a kernel pointer, skb->data, but the interface itself is
limited to 32 bits. A future changeset may want to mark this code
32-bit only, if it turns out cmsg->Data value truncation on 64-bit
platforms is problematic in practice.
I think I should really add somewhere a comment for this issue.
This field is not used in practice in linux kernel (neither in 32 or
64 bit), but should have some value, since a CAPI message trace will
display it.
The correct value in the 32 bit case is the address of the
data, in 64 bit it makes no sense, maybe we should use 0 here.