[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] xen: fix sparse warning in p2m.c
The patch "Speed up set_phys_to_machine() by using read-only mappings" introduced a sparse warning: arch/x86/xen/p2m.c:628:13: sparse: incorrect type in argument 1 (different address spaces) Avoid the warning. Signed-off-by: Juergen Gross <jgross@xxxxxxxx> --- arch/x86/xen/p2m.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 8b5db51..2defca9 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -615,6 +615,7 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn) { pte_t *ptep; unsigned int level; + unsigned long __user *addr; /* don't track P2M changes in autotranslate guests */ if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) @@ -625,7 +626,8 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn) return true; } - if (likely(!__put_user(mfn, xen_p2m_addr + pfn))) + addr = (unsigned long __user *)xen_p2m_addr + pfn; + if (likely(!__put_user(mfn, addr))) return true; ptep = lookup_address((unsigned long)(xen_p2m_addr + pfn), &level); -- 2.1.2 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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