[xen staging] xen/x86: use INFO level for node's without memory log message

[patchbot@xxxxxxx]

commit c9040f25be317ab2f7647605397d79313e3f303e
Author:     Wei Chen <wei.chen@xxxxxxx>
AuthorDate: Fri Jun 10 13:53:16 2022 +0800
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Fri Jun 17 09:36:12 2022 +0100

    xen/x86: use INFO level for node's without memory log message
    
    In previous code, Xen was using KERN_WARNING for log message
    when Xen found a node without memory. Xen will print this
    warning message, and said that this may be an BIOS Bug or
    mis-configured hardware. But actually, this warning is bogus,
    because in an NUMA setting, nodes can only have processors,
    and with 0 bytes memory. So it is unreasonable to warn about
    BIOS or hardware corruption based on the detection of node
    with 0 bytes memory.
    
    So in this patch, we remove the warning messages, but just
    keep an info message to info users that there is one or more
    nodes with 0 bytes memory in the system.
    
    Signed-off-by: Wei Chen <wei.chen@xxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/srat.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/xen/arch/x86/srat.c b/xen/arch/x86/srat.c
index 3d02520a5a..b62a152911 100644
--- a/xen/arch/x86/srat.c
+++ b/xen/arch/x86/srat.c
@@ -555,8 +555,7 @@ int __init acpi_scan_nodes(paddr_t start, paddr_t end)
                uint64_t size = nodes[i].end - nodes[i].start;
 
                if ( size == 0 )
-                       printk(KERN_WARNING "SRAT: Node %u has no memory. "
-                              "BIOS Bug or mis-configured hardware?\n", i);
+                       printk(KERN_INFO "SRAT: node %u has no memory\n", i);
 
                setup_node_bootmem(i, nodes[i].start, nodes[i].end);
        }
--
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