From: Juergen Gross <jgross@suse.com>
To: Calvin Owens <calvin@wbinvd.org>, linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
Kees Cook <kees@kernel.org>, Josh Poimboeuf <jpoimboe@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH] x86/cfi: add __init_or_module annotations for fineibt
Date: Tue, 26 May 2026 07:08:17 +0200 [thread overview]
Message-ID: <5f1e4f05-a1f4-4026-8ec2-ad2369514eb2@suse.com> (raw)
In-Reply-To: <1f50aecf23311dc5ffb965c5ccfb8b49208dbb3f.1779763849.git.calvin@wbinvd.org>
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On 26.05.26 05:22, Calvin Owens wrote:
> I'm seeing some benign section mismatch warnings with fineibt when
> building kernels with CONFIG_MODULES=n:
>
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0x1db (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0x473 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0x57c (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0x6d9 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xb57 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xb81 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xd00 (section: .text) -> poison_endbr (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xdd3 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xe58 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: __apply_fineibt+0xe85 (section: .text) -> text_poke_early (section: .init.text)
> WARNING: modpost: vmlinux: section mismatch in reference: apply_fineibt+0x8 (section: .text.unlikely.) -> __apply_fineibt (section: .init.text)
>
> Add the missing __init_or_module section annotations to fix the
> warnings, and also free up a tiny bit of memory after boot.
>
> Signed-off-by: Calvin Owens <calvin@wbinvd.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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next prev parent reply other threads:[~2026-05-26 5:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-26 3:22 [PATCH] x86/cfi: add __init_or_module annotations for fineibt Calvin Owens
2026-05-26 5:08 ` Juergen Gross [this message]
2026-06-10 15:54 ` Calvin Owens
2026-06-10 20:02 ` Borislav Petkov
2026-06-11 4:05 ` Calvin Owens
2026-06-10 19:54 ` Kees Cook
2026-06-28 22:24 ` [tip: x86/cleanups] x86/cfi: Add " tip-bot2 for Calvin Owens
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