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Re: [PATCH] minstrel: fix warning if lowest supported rate index is not 0

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Christian Lamparter wrote:
> This patch fixes the following WARNING (caused by rix_to_ndx): "
>>WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_rate_init+0xd2/0x33a [mac80211]()
>>[...]
>>Call Trace:
>> warn_on_slowpath+0x51/0x75
>> _format_mac_addr+0x4c/0x88
>> minstrel_rate_init+0xd2/0x33a [mac80211]
>> print_mac+0x16/0x1b
>> schedule_hrtimeout_range+0xdc/0x107
>> ieee80211_add_station+0x158/0x1bd [mac80211]
>> nl80211_new_station+0x1b3/0x20b [cfg80211]
> 
> The reason is that I'm experimenting with "g" only mode on a 802.11 b/g card.
> 
> Therefore rate_lowest_index returns 4 (= 6Mbit, instead of usual 0 = 1Mbit).
> Since mi->r array is initialized with zeros in minstrel_alloc_sta,
> rix_to_ndx has a hard time to find the 6Mbit entry and will trigged the WARNING.
> 
> Signed-off-by: Christian Lamparter <chunkeey@xxxxxx>
Acked-by: Felix Fietkau <nbd@xxxxxxxxxxx>
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