From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 077431A295; Tue, 25 Nov 2025 02:49:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764038977; cv=none; b=eeuu+MPvYPOv2HACbMykDsC2ChL7+CH+1L5dXdDRmhYz1EHCXBP4Ia6VNFOVTClXawdW15s8Ezr6jMqs/YNblkXMPlxLsEaRu6z6MhVeT9BhtvEPeu8DoYY0TIOh2YzyGFQ8j+B1w0PIFhtCGWDcRcyzAQ9rBQc0Zf+y3n+thRU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764038977; c=relaxed/simple; bh=aQMq1HTfzbqqDNq85zDNzwztVfRbyKNQRIJr8AGkkYc=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bkBHqBxa2dGcIqFzl9djV26W7/5cn+OHx2sa8BG4eGh8F33/ZBIalaaNCbroRolV1T5CEzUxJwbBGtlZk+BFxkLsGeiE3Dlaxy4kgkPdPtX5Icz0MuNFgP+1Bi19KqrhPXIfubPZ0TEjMZnCN6dOOP2dv+lFw726zfRlXGX5R5s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZpSz7ncO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZpSz7ncO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0EF48C116C6; Tue, 25 Nov 2025 02:49:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764038976; bh=aQMq1HTfzbqqDNq85zDNzwztVfRbyKNQRIJr8AGkkYc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=ZpSz7ncO52vz+IVE91r+VNKoc6DFG/YRn9jmavAN3OLZNgaohsoS/DndJ5GQS233y QvH/Te3234VjcJaLZuYt5hc3t/4aOyKONrH/OHYYdFqT9FSuSmWvVQND9npgXvrs8C okuZNIpPBP6miaKGU4CxLwqELT4jUBQP7/IopYu1AePiulcQRY/6kvaD6YgsaPNgQV GZS2/lsEVP/OSn0HJFC01CWEYCOwSMPuwTwh0XWWiNc47RFmZqV4/BlwiDwh3HRBtt HwTV2hAXbj6rQW+Tb+9UOBNPZZY5hmPvfQxgoXNlkVqAyCvf2v7crvkirlJFIPz6+g 0PL1nMYgVPTFA== Date: Mon, 24 Nov 2025 18:49:35 -0800 From: Jakub Kicinski To: David Wei Cc: davem@davemloft.net, netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, willemb@google.com, petrm@nvidia.com, shuah@kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH net-next 1/5] selftests: hw-net: auto-disable building the iouring C code Message-ID: <20251124184935.6c4ceb3d@kernel.org> In-Reply-To: References: <20251121040259.3647749-1-kuba@kernel.org> <20251121040259.3647749-2-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sat, 22 Nov 2025 16:55:05 -0800 David Wei wrote: > > +# Check if io_uring supports zero-copy receive > > +HAS_IOURING_ZCRX := $(shell \ > > + echo -e '#include \n' \ > > + 'void *func = (void *)io_uring_register_ifq;\n' \ > > + 'int main() {return 0;}' | \ > > + $(CC) -luring -x c - -o /dev/null 2>&1 && echo y) > > + > > +ifeq ($(HAS_IOURING_ZCRX),y) > > +COND_GEN_FILES += iou-zcrx > > +else > > +$(warning excluding iouring tests, liburing not installed or too old) > > Would you want to mention the min ver needed (2.10)? I think people would update to latest upstream if they update? I suspect we'll have to update this check if new dependencies come up, the version will become stale..