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Tue, 17 Mar 2026 01:02:30 -0700 (PDT) MIME-Version: 1.0 References: <20260203-inline-helpers-v2-0-beb8547a03c9@google.com> <20260203-inline-helpers-v2-3-beb8547a03c9@google.com> <20260314004012.GD534169@ax162> <20260316213440.GB1329928@ax162> In-Reply-To: <20260316213440.GB1329928@ax162> From: Miguel Ojeda Date: Tue, 17 Mar 2026 09:02:18 +0100 X-Gm-Features: AaiRm50RfwFM9fMmqm7H6QEiWpid4KdXpZyBrHWN7l2K7PyOj7AradadNJ2iMyA Message-ID: Subject: Re: [PATCH v2 3/3] build: rust: provide an option to inline C helpers into Rust To: Nathan Chancellor Cc: Alice Ryhl , Miguel Ojeda , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Alexandre Courbot , Will Deacon , Peter Zijlstra , Mark Rutland , Nick Desaulniers , Bill Wendling , Justin Stitt , Nicolas Schier , Andrew Morton , Uladzislau Rezki , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-kbuild@vger.kernel.org, linux-mm@kvack.org, Matthew Maurer Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: day6thkum1in38bqfoa7nfabhqh1dfrz X-Rspam-User: X-Rspamd-Queue-Id: 1AA494000B X-Rspamd-Server: rspam12 X-HE-Tag: 1773734551-487441 X-HE-Meta: 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 C8N5InbZ 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Mar 16, 2026 at 10:34=E2=80=AFPM Nathan Chancellor wrote: > > Hmmm, yeah, I suppose so. Actually, adding those would allow you to drop > the manual inclusion of -DMODULE in cmd_rust_helper because it will be > included via modkern_cflags. Yeah, a week ago I asked Alice about simplifying to `is-kernel-object` as well (mostly because I used it elsewhere in our `Makefile` in the past), but similarly I ended up thinking that if we are OK using directly `part-of-*`, then it would be better anyway. Cheers, Miguel