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brcmutil: really fix decoding channel info for 160 MHz bandwidth

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[ Upstream commit 3401d42c7e ]

Previous commit /adding/ support for 160 MHz chanspecs was incomplete.
It didn't set bandwidth info and didn't extract control channel info. As
the result it was also using uninitialized "sb" var.

This change has been tested for two chanspecs found to be reported by
some devices/firmwares:
1) 60/160 (0xee32)
   Before: chnum:50 control_ch_num:36
    After: chnum:50 control_ch_num:60
2) 120/160 (0xed72)
   Before: chnum:114 control_ch_num:100
    After: chnum:114 control_ch_num:120

Fixes: 330994e8e8 ("brcmfmac: fix for proper support of 160MHz bandwidth")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rafał Miłecki 2018-10-26 12:50:39 +02:00 committed by Greg Kroah-Hartman
parent 093255da56
commit 4a4c9b29a0
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/broadcom/brcm80211/brcmutil/d11.c
View File

@ -193,6 +193,9 @@ static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
}
break;
case BRCMU_CHSPEC_D11AC_BW_160:
ch->bw = BRCMU_CHAN_BW_160;
ch->sb = brcmu_maskget16(ch->chspec, BRCMU_CHSPEC_D11AC_SB_MASK,
BRCMU_CHSPEC_D11AC_SB_SHIFT);
switch (ch->sb) {
case BRCMU_CHAN_SB_LLL:
ch->control_ch_num -= CH_70MHZ_APART;