xen: remove a confusing comment on auto-translated guest I/O

[ Upstream commit d826c9e61c99120f8996f8fed6417167e32eb922 ]

After removing the conditional return from xen_create_contiguous_region(),
the accompanying comment was left in place, but it now precedes an
unrelated conditional and confuses readers.

Fixes: 989513a735f5 ("xen: cleanup pvh leftovers from pv-only sources")
Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230802163151.1486-1-petrtesarik@huaweicloud.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Stable-dep-of: e93ec87286bd ("x86/xen: allow larger contiguous memory regions in PV guests")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index cf2ade864c3020be11927d71b67b636c75a0a3da..b9844ab6086eac749866075066a8437b0a0d12dc 100644 (file)
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -2274,12 +2274,6 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
        int            success;
        unsigned long vstart = (unsigned long)phys_to_virt(pstart);
 
-       /*
-        * Currently an auto-translated guest will not perform I/O, nor will
-        * it require PAE page directories below 4GB. Therefore any calls to
-        * this function are redundant and can be ignored.
-        */
-
        if (unlikely(order > MAX_CONTIG_ORDER))
                return -ENOMEM;