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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc76b2580sm437029366b.64.2026.02.18.03.21.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Feb 2026 03:21:35 -0800 (PST) Message-ID: <36f2fe1d-27df-4ca6-9554-72edc9108127@oss.qualcomm.com> Date: Wed, 18 Feb 2026 12:21:32 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [net-next,v3,3/3] net: ipa: Grab IMEM slice base/size from DTS To: Simon Horman , konradybcio@kernel.org Cc: pabeni@redhat.com, marijn.suijten@somainline.org, edumazet@google.com, elder@riscstar.com, andrew+netdev@lunn.ch, dmitry.baryshkov@oss.qualcomm.com, andersson@kernel.org, elder@kernel.org, devicetree@vger.kernel.org, krzk@kernel.org, linux-arm-msm@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, conor+dt@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org References: <20260217-topic-ipa_imem-v3-3-d6d8ed1dfb67@oss.qualcomm.com> <20260218103917.132153-3-horms@kernel.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260218103917.132153-3-horms@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: rSaRyZFqTr4xPzPUcEgEmxICpSIkdJjS X-Proofpoint-ORIG-GUID: rSaRyZFqTr4xPzPUcEgEmxICpSIkdJjS X-Authority-Analysis: v=2.4 cv=P5k3RyAu c=1 sm=1 tr=0 ts=6995a0c0 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=9R54UkLUAAAA:8 a=PR7fkkLM5UUJJyjF1Z0A:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 a=YTcpBFlVQWkNscrzJ_Dz:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE4MDEwMSBTYWx0ZWRfXy5N27g16OvOb BxXQeAFNeF2yyBz/s9uil/ChnwqKnBM0npzrBcCfGuHuAelWoV8Z7minTR4SpwTA3KSC6WOIFHT yrLBp3pjGCGWM6vUW94l5kBZOy9NWOm9d2nYHO6a9XOMTy8Vc/Quk4n4tfyMNdvaYS8BwMCAndh q8okkaJv64oYpIm9rldNbo5O7na22X/nI8WiBK49j97o/i8dWKhgDbGviVibvqYJFvy2U7W5moO E1n3H0BrIzlCB8UvtuiYh+P/Dan88Aod327WtUm9De8WeNWuSwMC5PMti90mJfzEnhypao4O7mL +0YIVKxqLLmOlc2WRK1RB3PnSIDJOiQJpagegbckq52P+7l7aTXAl7t+/YKnjf0JpwcQlBCrcif AWUbIPtkas6XjsqTRtZxz6PsyHJr67gMcngIQufhmqZZ9CEIYegw2VUUsacofjMvoUJoFlplLK/ NuRVhO8epSuW1VTQOzw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-18_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 bulkscore=0 spamscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602180101 On 2/18/26 11:39 AM, Simon Horman wrote: > This is an AI-generated review of your patch. The human sending this > email has considered the AI review valid, or at least plausible. > > For local reproduction steps see https://netdev-ai.bots.linux.dev/ai-local.html > --- [...] >> + of_node_put(ipa_slice_np); >> + if (ret) >> + return ret; > ^^^^^^^^^^ > > At this point ipa->mem_virt holds a valid memremap() pointer. Does > this direct return leak the mapping? Every other error path after the > memremap() in this function uses goto err_unmap, which calls > memunmap(ipa->mem_virt). Should this be goto err_unmap instead? > > Simon says: This seems to me to be an actual problem. Yes, the robot proved useful Konrad