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Re: [PATCH] x86/xen: Fix sparse warning in enlighten_pv.c
- To: Juergen Gross <jgross@xxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx
- From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- Date: Mon, 15 Dec 2025 14:29:59 -0500
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- Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, kernel test robot <lkp@xxxxxxxxx>
- Delivery-date: Mon, 15 Dec 2025 19:30:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 12/15/25 6:51 AM, Juergen Gross wrote:
The sparse tool issues a warning for arch/x76/xen/enlighten_pv.c:
arch/x86/xen/enlighten_pv.c:120:9: sparse: sparse: incorrect type
in initializer (different address spaces)
expected void const [noderef] __percpu *__vpp_verify
got bool *
This is due to the percpu variable xen_in_preemptible_hcall being
exported via EXPORT_SYMBOL_GPL() instead of EXPORT_PER_CPU_SYMBOL_GPL().
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes:
https://lore.kernel.org/oe-kbuild-all/202512140856.Ic6FetG6-lkp@xxxxxxxxx/
Fixes: fdfd811ddde3 ("x86/xen: allow privcmd hypercalls to be preempted")
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
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