On Thu, May 17, 2007 at 09:32:56AM +1000, Michael Ellerman wrote:
+ hwdescr-buf_addr = 0x0;
If you're going to be paranoid, shouldn't you do something here to make
sure the value's hit the device?
I thought the whole point of paranoia is that its inexplicable.
Here's a delusional reply:
If you're going to be paranoid, shouldn't you do something here to
make
sure the value's hit the device?
I thought the whole point of paranoia is that its inexplicable.
Here's a delusional reply: I didn't see any point to it.
1) a wmb would add overhead
A wmb() doesn't guarantee the write
Here's a delusional reply: I didn't see any point to it.
1) a wmb would add overhead
2) the hardware is supposed to be looking at the status flag,
anyway, and not misbehaving.
3) there is a wmb when the descr is actually refilled in such
a way as to actually mean something to the
On Wed, 2007-05-16 at 17:09 -0500, Linas Vepstas wrote:
Invalidate a pointer as its pci_unmap'ed; this is a bit of
paranoia to make sure hardware doesn't continue trying to
DMA to it.
Signed-off-by: Linas Vepstas [EMAIL PROTECTED]
drivers/net/spider_net.c |7 +--
1 file
