linux/debian/patches/features/all/e1000e/0004-e1000e-nvm-write-prote...

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From: Yanir Lubetkin <yanirx.lubetkin@intel.com>
Date: Fri, 20 Mar 2015 17:41:53 -0700
Subject: e1000e: NVM write protect access removed from SPT HW
Origin: https://git.kernel.org/linus/152c0a976c71386c67c89969acc427dc5cf802b8
Bug-Debian: https://bugs.debian.org/784546
The call to e1000e_write_protect_nvm_ich8lan() is no longer supported by HW.
Access to these registers causes a system freeze in A step hardware and is
ignored in B step hardware. This function must not be called in hardware
newer than LPT.
Signed-off-by: Yanir Lubetkin <yanirx.lubetkin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6874,7 +6874,8 @@ static int e1000_probe(struct pci_dev *p
goto err_hw_init;
if ((adapter->flags & FLAG_IS_ICH) &&
- (adapter->flags & FLAG_READ_ONLY_NVM))
+ (adapter->flags & FLAG_READ_ONLY_NVM) &&
+ (hw->mac.type < e1000_pch_spt))
e1000e_write_protect_nvm_ich8lan(&adapter->hw);
hw->mac.ops.get_bus_info(&adapter->hw);