diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2008-10-01 17:18:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-01 17:31:25 -0700 |
| commit | 4a7703582836f55a1cbad0e2c1c6ebbee3f9b3a7 (patch) | |
| tree | 8ebe25b1ef16c8fd4ced6d356232ddca94ef97a2 /drivers/net/e1000e/ethtool.c | |
| parent | 20b918dc77b383e9779dafceee3f2198a6f7b0e5 (diff) | |
| download | blackbird-op-linux-4a7703582836f55a1cbad0e2c1c6ebbee3f9b3a7.tar.gz blackbird-op-linux-4a7703582836f55a1cbad0e2c1c6ebbee3f9b3a7.zip | |
e1000e: write protect ICHx NVM to prevent malicious write/erase
Set the hardware to ignore all write/erase cycles to the GbE region in
the ICHx NVM. This feature can be disabled by the WriteProtectNVM module
parameter (enabled by default) only after a hardware reset, but
the machine must be power cycled before trying to enable writes.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: arjan@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/net/e1000e/ethtool.c')
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index e21c9e0f3738..5ed8e13d5fed 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -529,6 +529,9 @@ static int e1000_set_eeprom(struct net_device *netdev, if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16))) return -EFAULT; + if (adapter->flags & FLAG_READ_ONLY_NVM) + return -EINVAL; + max_len = hw->nvm.word_size * 2; first_word = eeprom->offset >> 1; |
