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author | Shaddy Baddah <shaddy_baddah@hotmail.com> | 2008-11-28 06:10:45 (GMT) |
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committer | John W. Linville <linville@tuxdriver.com> | 2008-12-05 14:18:35 (GMT) |
commit | cde6901b7b69557a6f90f3183f76eda581af015e (patch) | |
tree | 7a0eeb25bedefb1713067e0539ce376d9d7308dd /net | |
parent | 5cf12e8dc641ef028f0cf9c317a9567e6b794de1 (diff) | |
download | linux-cde6901b7b69557a6f90f3183f76eda581af015e.tar.xz |
zd1211rw: use unaligned safe memcmp() in-place of compare_ether_addr()
Under my 2.6.28-rc6 sparc64, when associating to an AP through my
zd1211rw device, I was seeing kernel log messages like (not exact output):
Kernel unaligned access at TPC[10129b68] zd_mac_rx+0x144/0x32c [zd1211rw]
For the zd1211rw module, on RX, the 80211 packet will be located after
the PLCP header in the skb data buffer. The PLCP header being 5 bytes
long, the 80211 header will start unaligned from an aligned skb
buffer.
As per Documentation/unaligned-memory-access.txt, we must replace the
not unaligned() safe compare_ether_addr() with memcmp() to protect
architectures that require alignment.
Signed-off-by: Shaddy Baddah <shaddy_baddah@hotmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions