cfg80211: add warning when calculating MCS rates >= 32

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

cfg80211_calculate_bitrate() doesn't work for MCS
rates 32 or higher, and it has always returned 0
in that case. Warn if it ever really happens.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

authored by

Johannes Berg and committed by

John W. Linville 14 years ago 2615f375 4472037b

+1 -1

1 changed file

expand all

net

wireless

util.c

+1 -1

net/wireless/util.c

··· 880 880 return rate->legacy; 881 881 882 882 /* the formula below does only work for MCS values smaller than 32 */ 883 - if (rate->mcs >= 32) 883 + if (WARN_ON_ONCE(rate->mcs >= 32)) 884 884 return 0; 885 885 886 886 modulation = rate->mcs & 7;