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 A383B23372C; Thu, 27 Nov 2025 08:42:02 +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=1764232922; cv=none; b=tPac8q4wpLabr94HaWF9NivY0jGXh04UQl4oapUWD2YspxmOUXuTaTdjUQyE1Hg6PdNVx9QDauae6YMvj67tSgSNzxUWw0rzGZHzatx9C+HslH+xB3fDJceAMchT5ZiEDNyL74kwTNJaLSURa+HHD+1+uGqXM9VTJGQHmc9dGdU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764232922; c=relaxed/simple; bh=X80sCM3q3ut9FWGiov/9NC47OHOFMO25tdgZ+zs2L0U=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=ZbdpTo8GirfCO8IDXDUDBq3phiy2mZD0ceO60Qxjy5LtbiJLBkiJosnh/KdxFbTQ2xgxh6tRF7nx+9y5fwlzBJzYbJVuyQ81zKHT6MmT66e4mdCLQhTMhicPSHrodbBojJzQW0SbCEbxLUgUZ6WuKj2PFwxzS2v9B7PVc7mkq3c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Qsdt9xK8; 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="Qsdt9xK8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C124EC4CEF8; Thu, 27 Nov 2025 08:42:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764232922; bh=X80sCM3q3ut9FWGiov/9NC47OHOFMO25tdgZ+zs2L0U=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=Qsdt9xK8kEElya/zhPo2kbKLh0G0oql01xtPtuAgqtyHQodui64fF1pNhEJ4/4DJu ELQpKJufpiZK3GZSHkjiG+hdCRnCH4rsrTbCbKW8szDDzxsasKJ0xy9aNpwTxfo1Hc qURwP9BKm5VxQVLPz9cbg93nRxNzn3ZoC+YfHcG4GbQtjBXak9GHGgiI//s6VqzYhd 1PcODAaWd7N+EmMn0qgSO9ehDw4bfV2mSWmKxrV4Z1vErY16we//Md+95Mw0KDo4Ig XjJh72my0olITHrAmMmluqFmyB95g3v66996kOnCr3Mk+NC249clpFeQ7j6dUgsuDA ZpBGB0aVG8g9g== From: Leon Romanovsky To: Siva Reddy Kallam , Jason Gunthorpe , Usman Ansari , Leon Romanovsky Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, kernel test robot In-Reply-To: <20251126-remove-prefetch-v1-1-fcac22007ea7@nvidia.com> References: <20251126-remove-prefetch-v1-1-fcac22007ea7@nvidia.com> Subject: Re: [PATCH rdma-next] RDMA/bng_re: Remove prefetch instruction Message-Id: <176423291903.1831516.5989473716254720231.b4-ty@kernel.org> Date: Thu, 27 Nov 2025 03:41:59 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.15-dev-a6db3 On Wed, 26 Nov 2025 09:57:37 +0200, Leon Romanovsky wrote: > The prefetch instruction is meant to speed up access to memory referenced > by its address argument. In the bng_re code path, it has no effect, > because the pointer refers to a function that is executed immediately > afterward. > > The issue was identified due to the following kbuild compilation error: > > [...] Applied, thanks! [1/1] RDMA/bng_re: Remove prefetch instruction https://git.kernel.org/rdma/rdma/c/155c9971fa88a6 Best regards, -- Leon Romanovsky