[PATCH][next] wifi: mt76: mt7996: Use DECLARE_FLEX_ARRAY() and fix -Warray-bounds warnings

[Kalle Valo]

Kees Cook <keescook at chromium.org> writes:

> On Thu, Nov 16, 2023 at 02:57:24PM -0600, Gustavo A. R. Silva wrote:
>
>> Transform zero-length arrays `adm_stat` and `msdu_cnt` into proper
>> flexible-array members in anonymous union in `struct
>> mt7996_mcu_all_sta_info_event` via the DECLARE_FLEX_ARRAY()
>> helper; and fix multiple -Warray-bounds warnings:
>> 
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:483:61: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:490:58: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:492:58: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:469:61: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:477:66: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:479:66: warning:
>> array subscript <unknown> is outside array bounds of 'struct
>> <anonymous>[0]' [-Warray-bounds=]
>> 
>> This results in no differences in binary output, helps with the ongoing
>> efforts to globally enable -Warray-bounds.
>> 
>> Signed-off-by: Gustavo A. R. Silva <gustavoars at kernel.org>
>
> *thread ping*
>
> Can wireless folks please pick this patch up?

Ok, I assigned this to me on patchwork now. Felix, please let me know if
you prefer to take this to your tree instead.

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