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Date: Sat, 24 May 2014 10:38:06 +0400
From: Michael Tokarev <mjt@tls.msk.ru>
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Subject: Re: [Qemu-devel] [net, v1,
	1/4] net: cadence_gem: Fix Tx descriptor update
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To: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: edgar.iglesias@xilinx.com, Peter Maydell <peter.maydell@linaro.org>, qemu-devel <qemu-devel@nongnu.org>, Stefan Hajnoczi <stefanha@redhat.com>

[...]
         if (tx_desc_get_last(desc)) {
+            unsigned    desc_first[2];
+
             /* Modify the 1st descriptor of this packet to be owned by
              * the processor.
              */
             cpu_physical_memory_read(s->tx_desc_addr,
-                                     (uint8_t *)&desc[0], sizeof(desc));
-            tx_desc_set_used(desc);
+                                     (uint8_t *)&desc_first[0], sizeof(desc));
+            tx_desc_set_used(desc_first);
             cpu_physical_memory_write(s->tx_desc_addr,
-                                      (uint8_t *)&desc[0], sizeof(desc));
+                                      (uint8_t *)&desc_first[0], sizeof(desc));
             /* Advance the hardare current descriptor past this packet */

This is quite fun.

Can we, please,

 a) s/unsigned/uint8_t/ in the variable declaration,
   and remove the useless casts and "readdressing" everywhere?

and, more interesting,

 b) s/sizeof(desc)/sizeof(desc_first)/g
    ? :)

Thanks,

/mjt