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Mon, 31 Aug 2026 04:26:32 -0700 (PDT) X-Received: by 2002:a05:6a21:a0a:b0:3d0:abdb:de03 with SMTP id adf61e73a8af0-3d7ad788edbmr439110637.2.1788175591875; Mon, 31 Aug 2026 04:26:31 -0700 (PDT) Received: from [10.92.160.219] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3286f99585csm28349834eec.21.2026.08.31.04.26.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 31 Aug 2026 04:26:31 -0700 (PDT) Message-ID: <8a61f8b5-bead-4114-8363-42b469738599@oss.qualcomm.com> Date: Mon, 31 Aug 2026 16:56:25 +0530 Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] firmware: tpm: Introduce tpm-qcom driver To: Konrad Dybcio , Amirreza Zarrabi , Jens Wiklander , Sumit Garg , Peter Huewe , Jarkko Sakkinen , Jason Gunthorpe Cc: linux-arm-msm@vger.kernel.org, op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org References: <20260831-tpm_qcom_driver-v1-0-6f16fa6924fa@oss.qualcomm.com> <20260831-tpm_qcom_driver-v1-2-6f16fa6924fa@oss.qualcomm.com> Content-Language: en-US From: Kuldeep Singh In-Reply-To: Content-Type: text/plain; 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>> + struct tee_ioctl_object_invoke_arg inv_arg; >> + struct tee_param param[2]; > > nit: Reverse-Christmas-tree would be preferred Ok. > >> + >> + memset(&inv_arg, 0, sizeof(inv_arg)); >> + memset(¶m, 0, sizeof(param)); > > You can zero-initialize local struct variables like this: > > struct foo bar = { }; > > [...] > >> +static int tpm_qcom_send(struct tpm_chip *chip, u8 *buf, size_t bufsiz, >> + size_t cmd_len) >> +{ >> + struct tpm_qcom_private *pvt_data = dev_get_drvdata(chip->dev.parent); >> + size_t rsp_len = PAGE_ALIGN(MAX_RESPONSE_SIZE); >> + size_t copy_len; >> + int ret; >> + >> + if (cmd_len > MAX_COMMAND_SIZE) { >> + dev_err(&chip->dev, >> + "%s: len=%zd exceeds MAX_COMMAND_SIZE\n", >> + __func__, cmd_len); > > The name of the function isn't helpful here, this is the only time this > message appears, so it's easy to grep Sure. > > [...] > > >> + err = tpm_chip_register(pvt_data->chip); >> + if (err) { >> + dev_err(dev, "%s: tpm_chip_register failed with rc=%d\n", >> + __func__, err); > > Likewise Since it's dev_err so dev name should be sufficient i think. Let me drop function naming from log. > > [...] > >> +#define QCOMTEE_TPM_GET_TA_VERSION_ID 0x0001000 >> +#define QCOMTEE_TPM_TA_VERSION_GET_MAJOR(ver) ((u32)(ver) >> 16) >> +#define QCOMTEE_TPM_TA_VERSION_GET_MINOR(ver) ((u32)(ver) & 0x0000ffffU) > > That's FIELD_GET(mask, x) Sounds good, Let me use FIELD_GET. -- Regards Kuldeep