Eric Lee / smarc-fsl-linux-kernel

Download as
Browse Code ยป

Commit 0217eefa64509d63fbe8d1205310bafb2355cf4d

Authored by Felix Fietkau
Committed by Johannes Berg
1 parent 1109dc392e
Exists in smarc_imx_lf-5.15.y and in 20 other branches 8mp-imx_5.4.70_2.3.0, 8qm-imx_5.4.70_2.3.0, emb_imx_lf-5.15.y, emb_lf-6.1.y, pitx_8mp_lf-5.10.y, rt_linux_5.15.71, smarc-8m-android-11.0.0_2.0.0, smarc-imx6_4.14.98_2.0.0_ga, smarc-imx7_4.14.98_2.0.0_ga, smarc_8m_00d0_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.14.78_1.0.0_ga, smarc_8m_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.19.35_1.1.0, smarc_8mm_imx_4.14.78_1.0.0_ga, smarc_8mm_imx_4.14.98_2.0.0_ga, smarc_8mm_imx_4.19.35_1.1.0, smarc_8mm_imx_5.4.24_2.1.0, smarc_8mp_lf-5.10.y, smarc_8mq_imx_5.4.24_2.1.0, smarc_8mq_lf-5.10.y

mac80211: minstrel: reduce MINSTREL_SCALE 

The loss of a bit of extra precision does not hurt the calculation, 12
bits is still enough to calculate probabilities well. Reducing the scale
makes it easier to avoid overflows

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

net/mac80211/rc80211_minstrel.h
Diff comments   View file @ 0217eef
... ... @@ -14,7 +14,7 @@
14 14 #define SAMPLE_COLUMNS 10 /* number of columns in sample table */
15 15  
16 16 /* scaled fraction values */
17   -#define MINSTREL_SCALE 16
  17 +#define MINSTREL_SCALE 12
18 18 #define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
19 19 #define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
20 20