From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 DF0D4355F4E; Fri, 14 Aug 2026 17:47:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786729668; cv=none; b=oqr7xB2w/Q0xsUzmPwkldOjhqozQYECeqcCD1XZpVAHfNchl5KDclDc1Udvh8RRuv3OfcO07HvdCvf/05YtJIo0mOYe8hlxGol5APAoxEhJgvX3yyUJqODARUmsy54SUY60pQtnDWHpySbOQXDChtxvr26l9z9U2226yye2sXtk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786729668; c=relaxed/simple; bh=Ti+67Hxiw77h9Es+P+8Om0zeKJisy5kVHWR1LACZGV0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=sO47VChZbfwGfb5q2RUuIsHmPUFhAF+Ophej/bjMqBdKjeux+bQdyrEYS5u7nAirENX8ZSdcqMHfbGvlgjISbanKgLRR/s+nZtCXmvzgG6ZefV83FF9A74WAnkgRsVwzzmed0GIf/XqAQI20s/nMTJ4tWDB3O9mhCR4bGc7WLkI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nixPe1BN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nixPe1BN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9AB1E1F000E9; Fri, 14 Aug 2026 17:47:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786729666; bh=xLPe8VRG6qzAPIS5aCOep25c4TtO0QbreSEawFo9jAs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=nixPe1BNdFMPGGMu9KGSC9EyXD80VzkrMsO3KCL82pPmkWrFNWtLFm4MGp+lmuAdf mYU+czWTfSQ6/6De2FUTW6hcMHVLT1bvmFKLOzDV4B2QkoprVj8NTeFC97ITNzKOVS hOuWW+lZNcES9LUc8SMTdF5t2bwDoe47asd5VEhT79P8IOX3v5S6QG8J62V09CPXsj v1CBeTQNw6i52ueAfM8hQWaYNassna7RsA8xI9e841LjqHFcgLLEOaFVcNRUetAnQJ keaZhF32DhFQkPMFUSvm0pn1ZUZhPzT9EmG0OqZw+f3mkOPmjoKBFJc5qw/32G9qVh oa9RxNYjUmSzw== Date: Fri, 14 Aug 2026 18:47:41 +0100 From: Simon Horman To: Anand Khoje Cc: Brett Creeley , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Abhijit Gangurde , Shannon Nelson , Leon Romanovsky , Eric Joyner , Vadim Fedorenko , Kees Cook , Mohammad Heib , Jacob Keller , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH net-next v3] net/ionic: avoid OOB TX partner lookup for hwstamp RXQ Message-ID: <20260814174741.GT265046@horms.kernel.org> References: <20260813083705.454897-1-anand.a.khoje@oracle.com> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260813083705.454897-1-anand.a.khoje@oracle.com> On Thu, Aug 13, 2026 at 08:37:05AM +0000, Anand Khoje wrote: > The dedicated hardware timestamp RX queue is allocated with q->index > equal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only > contains the regular queue pairs, so using that index to set rxq->partner > can read one entry past txqcqs[] and then write through the derived > pointer. > Only link RX/TX partners for normal queue-pair indexes. Leave the hwstamp > RX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue > has no TX partner. > > Fixes: 8eeed8373e1c ("ionic: Add XDP_TX support") > Signed-off-by: Anand Khoje > Reviewed-by: Si-Wei Liu > Reviewed-by: Shannon Nelson > Cc: stable@vger.kernel.org > --- > v3: > Use dev_err() and return -ENXIO for a missing normal TX partner. > > v2: > Correct the Fixes tag. Reviewed-by: Simon Horman