linux-kernel - Re: [PATCH] x86: Fix build warnings about export.h

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Message-ID: <84b14425-03e4-42be-8bd5-9bc010ebecda@suse.com>
Date: Thu, 12 Jun 2025 12:19:09 +0200
From: Juergen Gross <jgross@...e.com>
To: Zhenghan Cheng <chengzhenghan@...ontech.com>, tglx@...utronix.de,
 mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org,
 mario.limonciello@....com, yazen.ghannam@....com, jpoimboe@...nel.org,
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 kirill.shutemov@...ux.intel.com
Cc: hpa@...or.com, pawan.kumar.gupta@...ux.intel.com, vkuznets@...hat.com,
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 brgerst@...il.com, coxu@...hat.com, dmaluka@...omium.org,
 linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
 linux-sgx@...r.kernel.org, kvm@...r.kernel.org,
 virtualization@...ts.linux.dev, tboot-devel@...ts.sourceforge.net,
 nouveau@...ts.freedesktop.org, linux-coco@...ts.linux.dev,
 xen-devel@...ts.xenproject.org, Huacai Chen <chenhuacai@...ngson.cn>,
 Zhenghan Cheng <your_email@...mple.com>
Subject: Re: [PATCH] x86: Fix build warnings about export.h

On 12.06.25 11:32, Zhenghan Cheng wrote:
> After commit a934a57a42f64a4 ("scripts/misc-check:
> check missing #include <linux/export.h> when W=1")
> and commit 7d95680d64ac8e836c ("scripts/misc-check:
> check unnecessary #include <linux/export.h> when W=1"),
> we get some build warnings with W=1,such as:
> 
> arch/x86/coco/sev/core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> arch/x86/crypto/aria_aesni_avx2_glue.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> arch/x86/kernel/unwind_orc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> arch/x86/kvm/hyperv.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> arch/x86/events/intel/core.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
> arch/x86/events/zhaoxin/core.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
> arch/x86/kernel/crash.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
> arch/x86/kernel/devicetree.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present
> 
> so fix these build warnings for x86.
> 
> Signed-off-by: "Zhenghan Cheng" <chengzhenghan@...ontech.com>
> Suggested-by: "Huacai Chen" <chenhuacai@...ngson.cn>

For Xen and paravirt:

Acked-by: Juergen Gross <jgross@...e.com>

Your patch is looking a little bit strange, as the list of modified files
is located between the patch hunks, followed by another "Signed-off-by:".


Juergen

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