[PATCH 6.12 086/567] x86/xen: Fix sparse warning in enlighten_pv.c

Greg Kroah-Hartman
2026-01-06T17:18:59Z

From: Juergen Gross <jgross@suse.com>

[ Upstream commit e5aff444e3a7bdeef5ea796a2099fc3c60a070fa ]

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@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512140856.Ic6FetG6-lkp@intel.com/
Fixes: fdfd811ddde3 ("x86/xen: allow privcmd hypercalls to be preempted")
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20251215115112.15072-1-jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/xen/enlighten_pv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 6e9d1b287f8e..bf750cd599b2 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -106,7 +106,7 @@ static int xen_cpu_dead_pv(unsigned int cpu);
* calls.
*/
DEFINE_PER_CPU(bool, xen_in_preemptible_hcall);
-EXPORT_SYMBOL_GPL(xen_in_preemptible_hcall);
+EXPORT_PER_CPU_SYMBOL_GPL(xen_in_preemptible_hcall);

/*
* In case of scheduling the flag must be cleared and restored after
--
2.51.0