From: John Hubbard <jhubbard@nvidia.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: "Danilo Krummrich" <dakr@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
"Timur Tabi" <ttabi@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Eliot Courtney" <ecourtney@nvidia.com>,
"Shashank Sharma" <shashanks@nvidia.com>,
"Zhi Wang" <zhiw@nvidia.com>, "David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
rust-for-linux@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Revert "gpu: nova-core: gsp: fix undefined behavior in command queue code"
Date: Fri, 3 Apr 2026 17:31:30 -0700 [thread overview]
Message-ID: <19601749-9e89-421d-a2df-399b3758ecca@nvidia.com> (raw)
In-Reply-To: <CANiq72nZv=yPswYJ4anOxhe2Vt7rjBF-5dxvawsUMWDrq7jMqw@mail.gmail.com>
On 4/3/26 5:26 PM, Miguel Ojeda wrote:
> On Sat, Apr 4, 2026 at 2:03 AM John Hubbard <jhubbard@nvidia.com> wrote:
>>
>> This works on LLVM 21 (rustc 1.93.0) but not on
>> LLVM 18 (rustc 1.78.0), nor on LLVM 19 (rustc 1.85.0).
>>
>> The kernel minimum is rustc 1.78.0.
>
> It will be 1.85.0 this cycle, but a related note in case it helps:
I was really confused about which cycle 1.85.0 would land in, and
still want to confirm: "this cycle" means Linux 7.1?
> `rustc` supports typically an older LLVM major version even if they
> provide a newer one.
>
> For instance, Rust 1.85.0 has a minimum LLVM major of 18, but the
> upstream binaries come with LLVM 19.1.7.
>
That is also good to know, thanks.
thanks,
--
John Hubbard
next prev parent reply other threads:[~2026-04-04 0:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-04 0:02 [PATCH] Revert "gpu: nova-core: gsp: fix undefined behavior in command queue code" John Hubbard
2026-04-04 0:26 ` Miguel Ojeda
2026-04-04 0:31 ` John Hubbard [this message]
2026-04-04 0:36 ` Miguel Ojeda
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