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authorKarl Beldan <karl.beldan@rivierawaves.com>2013-11-13 10:54:19 +0100
committerJohannes Berg <johannes.berg@intel.com>2013-11-25 20:52:09 +0100
commitf7d8ad81ca8c447124821e58f876d1aff996c85f (patch)
tree27f1f34298ad2c6143f2919e684bc0b4e44411ef /net/wimax
parentmac80211: minstrel_ht: replace some occurences of MCS_GROUP_RATES (diff)
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mac80211: minstrels: spare numerous useless calls to get_random_bytes
ATM, only the first array value returned by get_random_bytes is used. This change moves the call to get_random_bytes from the nested loop it is in to its parent. While at it, replace get_random_bytes with prandom_bytes since PRNs are way enough for the selection process. After this, minstrel_ht reclaims 80 PR-bytes instead of 640 R-bytes. minstrels use sample tables to probe different rates in a randomized manner. minstrel_ht inits one single sample table upon registration (during subsys_initcalls) and minstrel uses one per STA addition in minstrel. Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wimax')
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