From: Alice Ryhl <aliceryhl@google.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Uladzislau Rezki <urezki@gmail.com>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"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>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
rust-for-linux@vger.kernel.org,
"Alice Ryhl" <aliceryhl@google.com>
Subject: [PATCH] vmalloc: export vrealloc_node_align_noprof
Date: Wed, 07 Jan 2026 15:16:42 +0000 [thread overview]
Message-ID: <20260107-export-vrealloc_node_align_noprof-v1-1-a581bec13054@google.com> (raw)
This symbol is used from the Nova driver, so it needs to be exported to
avoid a build failure when building Nova as a module.
ERROR: modpost: "vrealloc_node_align_noprof" [drivers/gpu/nova-core/nova_core.ko] undefined!
ERROR: modpost: "vrealloc_node_align_noprof" [samples/rust/rust_dma.ko] undefined!
This error is only triggered if helpers are inlined into Rust.
Otherwise, Nova will call the exported symbol
rust_helper_vrealloc_node_align()
instead. There is no Fixes: tag as that feature is still WIP.
I used non-GPL EXPORT_SYMBOL to match the rest of the file, but let me
know if I should use EXPORT_SYMBOL_GPL.
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
---
This patch was split out from this series:
[PATCH 0/4] Inline helpers into Rust without full LTO
https://lore.kernel.org/all/20251202-inline-helpers-v1-0-879dae33a66a@google.com/
---
mm/vmalloc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index ecbac900c35f9cf207ac9299be096939509be43c..c248b5edb682e9a08acc1c3e804122f5fea22d19 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -4355,6 +4355,7 @@ void *vrealloc_node_align_noprof(const void *p, size_t size, unsigned long align
return n;
}
+EXPORT_SYMBOL(vrealloc_node_align_noprof);
#if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
#define GFP_VMALLOC32 (GFP_DMA32 | GFP_KERNEL)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20260107-export-vrealloc_node_align_noprof-1e7fb9b78e56
Best regards,
--
Alice Ryhl <aliceryhl@google.com>
next reply other threads:[~2026-01-07 15:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-07 15:16 Alice Ryhl [this message]
2026-01-07 15:18 ` Danilo Krummrich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260107-export-vrealloc_node_align_noprof-v1-1-a581bec13054@google.com \
--to=aliceryhl@google.com \
--cc=a.hindborg@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=bjorn3_gh@protonmail.com \
--cc=boqun.feng@gmail.com \
--cc=dakr@kernel.org \
--cc=gary@garyguo.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lossin@kernel.org \
--cc=ojeda@kernel.org \
--cc=rust-for-linux@vger.kernel.org \
--cc=tmgross@umich.edu \
--cc=urezki@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox