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Date:   Tue, 11 Oct 2022 11:12:56 +0300
From:   Kalle Valo <>
To:     "Arnd Bergmann" <>
Cc:     "Naresh Kamboju" <>,
        Netdev <>,
        "open list" <>,,
        "David S . Miller" <>,
        "Eric Dumazet" <>,
        "Jakub Kicinski" <>,
        "Paolo Abeni" <>,,,
Subject: Re: drivers/net/wireless/ath/ath11k/mac.c:2238:29: warning: 'ath11k_peer_assoc_h_he_limit' reading 16 bytes from a region of size 0

"Arnd Bergmann" <> writes:

> On Mon, Oct 10, 2022, at 6:54 PM, Kalle Valo wrote:
>> Naresh Kamboju <> writes:
>>> Build log:
>> Thanks, I was able to reproduce it now and submitted a patch:
>> But it's strange that nobody else (myself included) didn't see this
>> earlier. Nor later for that matter, this is the only report I got about
>> this. Arnd, any ideas what could cause this only to happen on GCC 11?
>> -- 
> No idea here, though I have not tried to reproduce it. This looks
> like a false positive to me, which might be the result of some
> missed optimization in the compiler when building with certain
> options. I see in the .config that KASAN is enabled, and this sometimes
> causes odd behavior like this. If it does not happen without KASAN,
> maybe report it as a bug against the compiler.

You guessed correctly, disabling KASAN makes the warning go away. So no
point of reporting this to GCC, thanks for the help!


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