linux-kernel - [RFC PATCH tip] x86/xen: xen_reservation

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Message-ID: <20180904152512.GV17047@intel.com>
Date:   Tue, 4 Sep 2018 23:25:12 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Juergen Gross <jgross@...e.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        tipbuild@...or.com, Thomas Gleixner <tglx@...utronix.de>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        xen-devel@...ts.xenproject.org
Subject: [RFC PATCH tip] x86/xen: xen_reservation_lock can be static


Fixes: f030aade9165 ("x86/xen: Move pv specific parts of arch/x86/xen/mmu.c to mmu_pv.c")
Signed-off-by: kbuild test robot <fengguang.wu@...el.com>
---
 mmu_pv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index bf30fa0..7ada9e4 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -104,7 +104,7 @@ static pud_t level3_user_vsyscall[PTRS_PER_PUD] __page_aligned_bss;
  * Protects atomic reservation decrease/increase against concurrent increases.
  * Also protects non-atomic updates of current_pages and balloon lists.
  */
-DEFINE_SPINLOCK(xen_reservation_lock);
+static DEFINE_SPINLOCK(xen_reservation_lock);
 
 /*
  * Note about cr3 (pagetable base) values: