Commit b6a7bceb authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by Johannes Berg
Browse files

nl80211: minor correction in sample wowlan mask calculation



The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where xx indicates
"don't care") should be represented by a pattern of twelve zero
bytes, and a mask of "0xed,0x01", not "0xed,0x07".

mask_len = (pat_len + 7) / 8 = (12 + 7) / 8 = 2
Hence the mask will be of 2 bytes.
Replace each valid byte in pattern by 1 and don't care byte by 0:
10110111 1000 (0000)

1st byte of pattern corresponds to lower order bit in first byte
of mask. And 9th byte of pattern corresponds to lower order bit
in second byte of mask. With this logic the mask will be
11101101 00000001 = 0xed 0x01
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 9c35d7d2
...@@ -2906,7 +2906,7 @@ enum nl80211_tx_power_setting { ...@@ -2906,7 +2906,7 @@ enum nl80211_tx_power_setting {
* corresponds to the lowest-order bit in the second byte of the mask. * corresponds to the lowest-order bit in the second byte of the mask.
* For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where * For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where
* xx indicates "don't care") would be represented by a pattern of * xx indicates "don't care") would be represented by a pattern of
* twelve zero bytes, and a mask of "0xed,0x07". * twelve zero bytes, and a mask of "0xed,0x01".
* Note that the pattern matching is done as though frames were not * Note that the pattern matching is done as though frames were not
* 802.11 frames but 802.3 frames, i.e. the frame is fully unpacked * 802.11 frames but 802.3 frames, i.e. the frame is fully unpacked
* first (including SNAP header unpacking) and then matched. * first (including SNAP header unpacking) and then matched.
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment