From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-176.mta1.migadu.com (out-176.mta1.migadu.com [95.215.58.176]) (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 5D76E4A21 for ; Tue, 8 Apr 2025 02:20:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744078835; cv=none; b=ooXHPVwREZsvAMM7o/tQZJzzs7u3xlt4Ln2P9D4h8txT13HRhv2fNEub3hwPQ8OQbwE03hwe3s0eHzET9K388J3A19Zb+WzJ26N7RpLT8AZjK0wnRG6kESvb6OBGw3b7Ru8JYLOOip2TgFF/c4Qk7duyvaCa9ILaQWMY23htUYo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744078835; c=relaxed/simple; bh=fcsXNAqVONFErcWct0p5f6TRoJic4GOHW8vfQwN5c3E=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=cSUnKrITTx+6m1hn0AAV2YkhDm1AxumfsHMwDACuMNrbzQjbZIzigIIOB6xxZr1W9YmbfjAtRznYm29KwFwP4EC+GTxb/lIJSin9MEw5SOT+uPjgAIBNYJ6gNOtjkYLZlzjbWdVKsZC21osz6Qn+SKP36trQa0cjpJEawR/WlW8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=NFCY8Y1d; arc=none smtp.client-ip=95.215.58.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="NFCY8Y1d" Message-ID: <6c463f96-18e7-4ee9-ba74-524772e008b4@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1744078831; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mTadr6hlfyyWPFYhpnPzSUF00n3EJeBKU1nvkMa6B0k=; b=NFCY8Y1dz+KkzOURdbfKAdoFb/kvpmtBEKKkSOhVv/lWdHckn8yhFGmrio62gou0llqR8F nNZD1lvurUHtiBwoPdFh/RlO6qSkOpkSk5gefPoSfRzaI+AeVRMMhHIT7oRWeoYo60qlDp 8oNKKm8SHQ1AtqnSrzpKmESCeexcwSU= Date: Tue, 8 Apr 2025 10:19:39 +0800 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH iwl-net v2] ice: Check VF VSI Pointer Value in ice_vc_add_fdir_fltr() To: Simon Horman Cc: przemyslaw.kitszel@intel.com, anthony.l.nguyen@intel.com, davem@davemloft.net, edumazet@google.com, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Xuanqiang Luo References: <20250325020149.2041648-1-xuanqiang.luo@linux.dev> <20250407140242.GK395307@horms.kernel.org> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: luoxuanqiang In-Reply-To: <20250407140242.GK395307@horms.kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT 在 2025/4/7 22:02, Simon Horman 写道: > On Tue, Mar 25, 2025 at 10:01:49AM +0800, Xuanqiang Luo wrote: >> From: Xuanqiang Luo >> >> As mentioned in the commit baeb705fd6a7 ("ice: always check VF VSI >> pointer values"), we need to perform a null pointer check on the return >> value of ice_get_vf_vsi() before using it. >> >> v2: Add "iwl-net" to the subject and modify the name format. >> >> Fixes: 6ebbe97a4881 ("ice: Add a per-VF limit on number of FDIR filters") >> Signed-off-by: Xuanqiang Luo > Reviewed-by: Simon Horman > >> --- >> drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c >> index 14e3f0f89c78..53bad68e3f38 100644 >> --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c >> +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c >> @@ -2092,6 +2092,12 @@ int ice_vc_add_fdir_fltr(struct ice_vf *vf, u8 *msg) >> dev = ice_pf_to_dev(pf); >> vf_vsi = ice_get_vf_vsi(vf); >> > nit, but not need to repost because of this: it's seems nicer > not to have not to have a blank line here. And instead, if one is > really wanted, put it above the ice_get_vf_vsi() line. > Thank you for the reminder. I will take this into consideration when submitting other patches next time. Since vf_vsi and its judgment logic are logically adjacent, it's better not to separate them with blank lines. >> + if (!vf_vsi) { >> + dev_err(dev, "Can not get FDIR vf_vsi for VF %u\n", vf->vf_id); >> + v_ret = VIRTCHNL_STATUS_ERR_PARAM; >> + goto err_exit; >> + } >> + >> #define ICE_VF_MAX_FDIR_FILTERS 128 >> if (!ice_fdir_num_avail_fltr(&pf->hw, vf_vsi) || >> vf->fdir.fdir_fltr_cnt_total >= ICE_VF_MAX_FDIR_FILTERS) { >> -- >> 2.27.0 >> >>