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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-13 14:31:51 -0700
committerDavid S. Miller <davem@davemloft.net>2009-04-13 14:31:51 -0700
commit0d489ffb76de0fe804cf06a9d4d11fa7342d74b9 (patch)
tree2bf15701525b016ed62eae461725e2c6e12b1d8a /include
parent5a31bec014449dc9ca994e4c1dbf2802b7ca458a (diff)
tg3: fix big endian MAC address collection failure
We noticed on parisc that our broadcoms all swapped MAC addresses going from 2.6.29 to 2.6.30-rc1: Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59 Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e The problem patch is: commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae Author: Matt Carlson <mcarlson@broadcom.com> Date: Wed Feb 25 14:25:52 2009 +0000 tg3: Eliminate tg3_nvram_read_swab() With the root cause being the use of memcpy to set the mac address: memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2); memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo)); This might work on little endian machines, but it can't on big endian ones. You have to use the original setting mechanism to be correct on all architectures. The attached patch fixes parisc. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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