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b=Qv6JxmleN9/FehBcjvyaVa1MkmaXr4Sv6DcsFlJ96PsdiyVC/3pYc+m9Fwy/RrdSG k5iZa7SJc1Ft+h6UZKpE7yAG8OVAeY+4bKrG5ag2HU4QV8BqxvEHeMinl3wg76IP19 XbngVTWCPutXEd0vLUj4yiykgEMAB738SKwiuyl2eLDpHKdp6Dn+XZO24604aijCIz vMZ00TvFd1eEU9/TTw62WquUyTwe31b33w4myELOF078ren7RgnzMj7AwOEOoJK8OO He1JYHC23hpTrczCRcVKZKDqpyOBK3ynq1rAxPlCOxuKwamlGfrVspQwrE3ZP8XexF uqm5O+jaQqgSA== From: Miguel Ojeda To: ojeda@kernel.org Cc: a.hindborg@kernel.org, acourbot@nvidia.com, akpm@linux-foundation.org, aliceryhl@google.com, anton.ivanov@cambridgegreys.com, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, dakr@kernel.org, david@davidgow.net, gary@garyguo.net, johannes@sipsolutions.net, justinstitt@google.com, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux@armlinux.org.uk, llvm@lists.linux.dev, lossin@kernel.org, mark.rutland@arm.com, mmaurer@google.com, morbo@google.com, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, nicolas.schier@linux.dev, nsc@kernel.org, peterz@infradead.org, richard@nod.at, rust-for-linux@vger.kernel.org, tmgross@umich.edu, urezki@gmail.com, will@kernel.org Subject: Re: Re: [PATCH v2 0/3] Inline helpers into Rust without full LTO Date: Mon, 23 Mar 2026 01:03:27 +0100 Message-ID: <20260323000327.111235-1-ojeda@kernel.org> In-Reply-To: <20260322192159.88138-1-ojeda@kernel.org> References: <20260322192159.88138-1-ojeda@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: B733220003 X-Stat-Signature: 3itf4zzhx86tpdn35onqwxxib115jd73 X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1774224242-903587 X-HE-Meta: U2FsdGVkX19/HkTaOp5K/NgA7w9/mJDnGqbA+nZ5x6fZQL4ddCAy3mydEZtxmr5tWfySu25rjRl/Pds9Q+x1vcYOc3Gav9t08FOXfqPnGQXyY/aJ1HaEQnD38jCEspW0tONgiSfHIB2z3yOegiI8g3F4w3hvw3r4BaC7ejPLupxdGDjDv7BQLrNSLs5Wo2bdwzvsq+ZQJUvggvG+3jeVwnqBJYsxFeJJlGlHh/yXH//49VpEPbALNi0+cJp2u3+s/NnPojK2rIuTBqV+Q1yi47BJvbT+7PJ3iilZzLUEVwK7PZRDqafKqZfRDsYly0jYzT4NfTMAQjJy2jaVylKDHp9wuQ3EZYsecI4BnBO78YQW4Y2bES99IEITdwJlkMtk8Yh+3sBbLhuXf3rTvgFLyaJ0euX++kOihXYV9nZBW+Cz5DzJ/OfQjX35SAwOgba5QZkbNalOMciyhDECNdhEF5QIMJJoyqskl2eLsMYim0P1Yh2x0YaB4SRmSlbAS0iGbew9uNG02RqXPbh+nJ7QgpZqeQyExVk3j0ZxWOFr1r7vvcS42jqNpV+J5C+/U09UTrQur1aBFsaYlwSrXnEDDYUcVl9dET6NCTm+0mUMUhtWfSgsBWVa7LZrXJhYIZNFFdImuYA6x1yw2kjfDcRC9jeNlckg7f7u53GE8O4n472tYxs1Ui4LakUQcYLYGyTHxzVspvtDvvzjJlG9ZAPIZbzG3I3ru1dloZ9ROJRJbGjgTHfP6w7QdKuShdXkgH0NbRKKuuPONo2B5koO8EPNARbE6Fjb3eGkbuSZtf6xK3Wq9P9Gw9cb6VPCnXmTIg5kQJ/BqctEuR/RtgqGBhQhjqdqGnhlwWtE5XuhejAWeP1nn9xK7Eyi89Gn0biKDPyK7si528WZ4/WdoKYAXz34f8DcbpcW1OVx06ikVT3TB1abHU9Ts+OT97Xt1i2oG8YBQaDtMyllBrp6s97LIch iPP8OD8+ AKBv7Q9hags7M4ECJV2mGInRhzfxd7USV4PWsITIEjFTsU0SVzHbtwSXxxpfxM2E1wwMQ/K+ARxpWFd9kzuoZIN8u4H7AztP7oo0ac9omi5/Z5LmqurZ3OYSTmL2tJ2A8hpCaKW6uoaqG3XSIAPaxNxdx0xMBHOwV+d795/GAo2N8+m68gLEefgxnTAhwYGWgVhVMXRj6tx9aVjluztRUxaJZjbFb/JVNYN7PgjxGUmoDojnxkeMuYzgmZcRLumqc9HO4cprqYaCdztKdNr8Hx+Sh7awk1YN1/4lvMgLqf2R2+uL6I1xep6UmuJcNOQUbKsJpNmlPd8WGj0MpwWp0id+jJCAW6R6Fg5yJUeA13e2O4m9Hky9faMywzht9jtbZ0GXS Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, 22 Mar 2026 20:21:59 +0100 Miguel Ojeda wrote: > > On the other hand, regardless of whether we fix this (and another > issue in a separate email found thanks to the UML build), we could > instead add `depends on` listing explicitly the architectures where > this is going to be actually tested. That way maintainers can decide > whether they want to support it when they are ready. Thoughts? Another one for arm 32-bit: LD .tmp_vmlinux1 ld.lld: error: undefined symbol: __aeabi_read_tp >>> referenced by uaccess.rs:349 (rust/kernel/uaccess.rs:349) >>> samples/rust/rust_misc_device.o:(::ioctl) in archive vmlinux.a >>> referenced by uaccess.rs:543 (rust/kernel/uaccess.rs:543) >>> samples/rust/rust_misc_device.o:(::ioctl) in archive vmlinux.a >>> referenced by uaccess.rs:543 (rust/kernel/uaccess.rs:543) >>> drivers/android/binder/rust_binder_main.o:(rust_binder_main::rust_binder_ioctl) in archive vmlinux.a >>> referenced 36 more times I think this reinforces the case that this is something that arch folks should think about case by case, and decide if they want to try -- we may want to start simple with x86_64 and arm64 or similar first. Thanks! Cheers, Miguel