Re: [PATCH 2/3] e1000e: Useset_memory_ro()/set_memory_rw() to protect flash memory

Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> · Wed, 24 Sep 2008 12:51:01 +0200

David Miller wrote:

From: Jiri Kosina <jkosina@xxxxxxx>
Date: Wed, 24 Sep 2008 01:45:53 +0200 (CEST)

Yes, probably not a vanilla kernel material, but could be very well used 

for testing to further isolate whether it is kernel or userspace 

corrupting the memory mapped eeprom.

Absolutely.

Would it help and would it be feasible to drastically shorten the 

lifetime of the MMIO mapping?  I.e. only have it mapped briefly during 

the driver probe, and temporarily whenever a userspace tool like ethtool 

needs it.

--
Stefan Richter
-=====-==--- =--= ==---
http://arcgraph.de/sr/
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