From: Petr Tesarik Date: Wed, 2 Aug 2023 16:31:51 +0000 (+0200) Subject: xen: remove a confusing comment on auto-translated guest I/O X-Git-Tag: v6.1.129~100 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a32e55815e89dbc42e151ba8908a5ebd1e2e42a;p=thirdparty%2Fkernel%2Fstable.git 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 Reviewed-by: Boris Ostrovsky Link: https://lore.kernel.org/r/20230802163151.1486-1-petrtesarik@huaweicloud.com Signed-off-by: Juergen Gross Stable-dep-of: e93ec87286bd ("x86/xen: allow larger contiguous memory regions in PV guests") Signed-off-by: Sasha Levin --- diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index ee29fb558f2e6..22b619f89a1d7 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -2302,12 +2302,6 @@ 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;