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Fri, 21 Aug 2026 08:59:10 -0700 (PDT) Received: from ubuntu24 ([120.239.197.32]) by smtp.gmail.com with ESMTPSA id 5614622812f47-4b2d6d8945dsm5119763b6e.16.2026.08.21.08.59.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Aug 2026 08:59:09 -0700 (PDT) Date: Fri, 21 Aug 2026 23:58:57 +0800 From: Xing Loong To: Jens Wiklander Subject: Re: [PATCH v4 3/3] tee: add MbedTEE driver Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Action: no action X-Spamd-Result: default: False [-1.98 / 15.00]; BAYES_HAM(-2.98)[99.92%]; SUSPICIOUS_RECIPS(1.50)[]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; MID_RHS_NOT_FQDN(0.50)[]; R_SPF_ALLOW(-0.20)[+ip4:74.125.0.0/16]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20251104]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:15169, ipnet:74.125.0.0/16, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[op-tee@lists.trustedfirmware.org]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ALIAS_RESOLVED(0.00)[]; DWL_DNSWL_BLOCKED(0.00)[gmail.com:dkim]; RWL_MAILSPIKE_POSSIBLE(0.00)[74.125.231.203:from]; NEURAL_HAM(-0.00)[-1.000]; TAGGED_RCPT(0.00)[dt]; RCPT_COUNT_SEVEN(0.00)[10]; RCVD_IN_DNSWL_NONE(0.00)[74.125.231.203:from] X-Rspamd-Server: lists.trustedfirmware.org X-Rspamd-Queue-Id: 4740643EC7 X-Spamd-Bar: - X-MailFrom: xing.xl.loong@gmail.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-op-tee.lists.trustedfirmware.org-0 Message-ID-Hash: AOZEBFAEVMDBNN6IX3ZKSYYL5ABT245O X-Message-ID-Hash: AOZEBFAEVMDBNN6IX3ZKSYYL5ABT245O X-Mailman-Approved-At: Mon, 24 Aug 2026 05:14:20 +0000 CC: Jens Wiklander , Krzysztof Kozlowski , Conor Dooley , Rob Herring , Sumit Garg , op-tee@lists.trustedfirmware.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org X-Mailman-Version: 3.3.5 Precedence: list List-Id: Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hi Jens, On 20/08/2026 10:10, Jens Wiklander wrote: > I took a quick look at the mbedtee project, and it appears to be a > one-person hobby project. Sounds like fun, but I wonder how meaningful > it is to upstream a kernel driver if you're the only user. Fair point. I wasn't fully aware that an active user base was a strict requirement for upstreaming a new driver, but that completely makes sense from a maintenance perspective. I'll hold off on pushing this driver for now until mbedtee gains more actual users. For what it's worth, the integration side is fully in place with tested QEMU/FastModel support and a working Buildroot overlay, so it's very easy for anyone interested to try it out. Thanks for your time and the prompt review! Cheers, Xing