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Fri, 11 Aug 2023 20:15:51 GMT Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C90CF58056; Fri, 11 Aug 2023 20:15:50 +0000 (GMT) Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 935A458052; Fri, 11 Aug 2023 20:15:50 +0000 (GMT) Received: from linux.vnet.ibm.com (unknown [9.53.174.71]) by smtpav05.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 11 Aug 2023 20:15:50 +0000 (GMT) From: Thinh Tran To: kuba@kernel.org Cc: aelior@marvell.com, davem@davemloft.net, edumazet@google.com, manishc@marvell.com, netdev@vger.kernel.org, pabeni@redhat.com, skalluru@marvell.com, VENKATA.SAI.DUGGI@ibm.com, Thinh Tran Subject: [Patch v5 3/4] bnx2x: Prevent access to a freed page in page_pool Date: Fri, 11 Aug 2023 15:15:11 -0500 Message-Id: <20230811201512.461657-4-thinhtr@linux.vnet.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230811201512.461657-1-thinhtr@linux.vnet.ibm.com> References: <20230728211133.2240873-1-thinhtr@linux.vnet.ibm.com> <20230811201512.461657-1-thinhtr@linux.vnet.ibm.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: HRCYZgAzXzm7FoidLcMuGPTqDmGsdC9Q X-Proofpoint-ORIG-GUID: Zy5raQCmUjXLAfF8x4vBXslyqfgIq3Ka X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-11_12,2023-08-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 mlxscore=0 malwarescore=0 spamscore=0 clxscore=1015 mlxlogscore=806 impostorscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308110189 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Signed-off-by: Thinh Tran --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 0ad879a5af95..ca3ab06206b3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -1016,6 +1016,9 @@ static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, { int i; + if (!fp->page_pool.page) + return; + if (fp->mode == TPA_MODE_DISABLED) return; -- 2.27.0