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| author | Felix Fietkau <nbd@nbd.name> | 2021-04-28 21:06:36 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-04-28 21:08:29 +0200 |
| commit | 12cb52bd0665da33cb5dc64697f1751a8b33fb05 (patch) | |
| tree | 9559097f4ec3aded3a394313e87f2cd0e01245ee /package/kernel/mac80211 | |
| parent | 6f77ce77248d6458414efafd64c72d653fc70bb8 (diff) | |
| download | upstream-12cb52bd0665da33cb5dc64697f1751a8b33fb05.tar.gz upstream-12cb52bd0665da33cb5dc64697f1751a8b33fb05.tar.bz2 upstream-12cb52bd0665da33cb5dc64697f1751a8b33fb05.zip | |
mac80211: minstrel_ht: fix issue in calculating success probability
Missing braces in a macro were leading to badly working rates sometimes
getting a success probabilty of 1.0
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package/kernel/mac80211')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/353-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/353-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch b/package/kernel/mac80211/patches/subsys/353-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch new file mode 100644 index 0000000000..0d475b7329 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/353-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch @@ -0,0 +1,21 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Wed, 28 Apr 2021 21:03:13 +0200 +Subject: [PATCH] mac80211: minstrel_ht: fix MINSTREL_FRAC macro + +Add missing braces to avoid issues with e.g. using additions in the +div expression + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/net/mac80211/rc80211_minstrel_ht.h ++++ b/net/mac80211/rc80211_minstrel_ht.h +@@ -14,7 +14,7 @@ + + /* scaled fraction values */ + #define MINSTREL_SCALE 12 +-#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div) ++#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / (div)) + #define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE) + + #define EWMA_LEVEL 96 /* ewma weighting factor [/EWMA_DIV] */ |