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Fri, 17 Jan 2025 11:11:03 +0000 Message-ID: <4f1e37f0-d72d-4748-a5e4-0ee28d33ca38@intel.com> Date: Fri, 17 Jan 2025 12:10:52 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] hv_netvsc: Replace one-element array with flexible array member To: Jakub Kicinski , Roman Kisel CC: Thorsten Blum , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Andrew Lunn , "David S. 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I would add a struct-specific macro or at least put the info into this struct' doc, that "there is legacy API requirement to allocate at least one element for the flex array member". >> >> Thanks! >> >>> >>> Compile-tested only. >> >> The code change looks good to me now. I'll build a VM with this change >> to clear my conscience (maybe the change triggers a compiler bug, >> however unlikely that sounds) before replying with any tags. Likely next >> Monday, but feel free to beat me to it, or perhaps, someone else will >> tag this as reviewed by them and/or tested by them. > > Doesn't look like a real bug fix, so would be good to get some signal If the actual usage would be with more than 1 element UBSAN will complain. > soon. The merge window is soon so we'll likely close the trees very > very soon .. >