package/kernel/mac80211/patches/subsys/302-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 28 Apr 2021 21:03:13 +0200
   3 Subject: [PATCH] mac80211: minstrel_ht: fix MINSTREL_FRAC macro
   4
   5 Add missing braces to avoid issues with e.g. using additions in the
   6 div expression
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/net/mac80211/rc80211_minstrel_ht.h
  12 +++ b/net/mac80211/rc80211_minstrel_ht.h
  13 @@ -14,7 +14,7 @@
  14
  15  /* scaled fraction values */
  16  #define MINSTREL_SCALE  12
  17 -#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
  18 +#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / (div))
  19  #define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
  20
  21  #define EWMA_LEVEL     96      /* ewma weighting factor [/EWMA_DIV] */