2019-09-03 11:41:41

by Arend Van Spriel

[permalink] [raw]
Subject: [PATCH] cfg80211: fix boundary value in ieee80211_frequency_to_channel()

The boundary value used for the 6G band was incorrect as it would
result in invalid 6G channel number for certain frequencies.

Reported-by: Amar Singhal <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
---
net/wireless/util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index c999390..006f3ea 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -116,7 +116,7 @@ int ieee80211_frequency_to_channel(int freq)
return (freq - 2407) / 5;
else if (freq >= 4910 && freq <= 4980)
return (freq - 4000) / 5;
- else if (freq < 5940)
+ else if (freq < 5945)
return (freq - 5000) / 5;
else if (freq <= 45000) /* DMG band lower limit */
/* see 802.11ax D4.1 27.3.22.2 */
--
1.9.1