[PATCH v1] xen: remove a confusing comment on auto-translated guest I/O

[PATCH v1] xen: remove a confusing comment on auto-translated guest I/O

[Petr Tesarik]

From: Petr Tesarik <petr.tesarik.ext@huawei.com>

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>
---
 arch/x86/xen/mmu_pv.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index e0a975165de7..804a5441324c 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -2310,12 +2310,6 @@ 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;
 
-- 
2.25.1

Re: [PATCH v1] xen: remove a confusing comment on auto-translated guest I/O

[Boris Ostrovsky]

On 8/2/23 12:31 PM, Petr Tesarik wrote:
> From: Petr Tesarik <petr.tesarik.ext@huawei.com>
> 
> 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>

Re: [PATCH v1] xen: remove a confusing comment on auto-translated guest I/O

[Juergen Gross]

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On 02.08.23 18:31, Petr Tesarik wrote:
> From: Petr Tesarik <petr.tesarik.ext@huawei.com>
> 
> 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>

Pushed to xen/tip.git for-linus-6.6


Juergen


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