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| author | Karl Beldan <karl.beldan@rivierawaves.com> | 2013-11-13 10:54:19 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-11-25 20:52:09 +0100 |
| commit | f7d8ad81ca8c447124821e58f876d1aff996c85f (patch) | |
| tree | 27f1f34298ad2c6143f2919e684bc0b4e44411ef /tools | |
| parent | 7a5e3fa2c81ca2fdc514c61ad90fb4e0b632258c (diff) | |
| download | lwn-f7d8ad81ca8c447124821e58f876d1aff996c85f.tar.gz lwn-f7d8ad81ca8c447124821e58f876d1aff996c85f.zip | |
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 'tools')
0 files changed, 0 insertions, 0 deletions