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Miller" , "Eric Dumazet" , "Jakub Kicinski" , "Paolo Abeni" , ath11k@lists.infradead.org, regressions@lists.linux.dev, lkft-triage@lists.linaro.org 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221010_105238_099411_2627638F X-CRM114-Status: GOOD ( 11.07 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org On Mon, Oct 10, 2022, at 6:54 PM, Kalle Valo wrote: > Naresh Kamboju writes: >> >> Build log: https://builds.tuxbuild.com/2F4W7nZHNx3T88RB0gaCZ9hBX6c/ > > Thanks, I was able to reproduce it now and submitted a patch: > > https://patchwork.kernel.org/project/linux-wireless/patch/20221010160638.20152-1-kvalo@kernel.org/ > > 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? > > -- > https://patchwork.kernel.org/project/linux-wireless/list/ > > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches 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. Arnd -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k