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 Re: [Xen-devel] [PATCH 13/14] xen/mm: Convert {s, g}et_gpfn_from_mfn() to use typesafe MFN
 
To: George Dunlap <george.dunlap@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>From: Julien Grall <julien.grall@xxxxxxx>Date: Wed, 29 May 2019 17:27:35 +0100Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>, Tamas K Lengyel <tamas@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Roger Pau Monne <roger.pau@xxxxxxxxxx>Delivery-date: Wed, 29 May 2019 16:27:42 +0000List-id: Xen developer discussion <xen-devel.lists.xenproject.org> 
 
Hi George,
On 24/05/2019 17:24, George Dunlap wrote:
 
On 5/10/19 2:21 PM, Jan Beulich wrote:
 
@@ -1099,19 +1100,19 @@ long p2m_pt_audit_p2m(struct p2m_domain *p2m)
                                  entry_count++;
                              continue;
                          }
-                        mfn = l1e_get_pfn(l1e[i1]);
-                        ASSERT(mfn_valid(_mfn(mfn)));
-                        m2pfn = get_gpfn_from_mfn(mfn);
+                        mfn = l1e_get_mfn(l1e[i1]);
+                        ASSERT(mfn_valid(mfn));
+                        m2pfn = get_pfn_from_mfn(mfn);
                          if ( m2pfn != gfn &&
                               type != p2m_mmio_direct &&
                               !p2m_is_grant(type) &&
                               !p2m_is_shared(type) )
                          {
                              pmbad++;
-                            printk("mismatch: gfn %#lx -> mfn %#lx"
-                                   " -> gfn %#lx\n", gfn, mfn, m2pfn);
-                            P2M_PRINTK("mismatch: gfn %#lx -> mfn %#lx"
-                                       " -> gfn %#lx\n", gfn, mfn, m2pfn);
+                            printk("mismatch: gfn %#lx -> mfn %"PRI_mfn" -> gfn 
%#lx\n",
+                                   gfn, mfn_x(mfn), m2pfn);
+                            P2M_PRINTK("mismatch: gfn %#lx -> mfn %"PRI_mfn" -> gfn 
%#lx\n",
+                                       gfn, mfn_x(mfn), m2pfn);
 
George, do we really mean to have printk() and P2M_PRINTK() here?
 
Looks like this was introduced (by me!) in a589ff6c179; my best guess is
that it was due to a bad rebase merge.
 
Only the P2M_PRINTK version should be kept, am I right?
 
I'll leave it to Julien to decide if he wants to clean this up or leave
it be.
 
I am happy to write a patch to remove the duplicated message.
Cheers,
--
Julien Grall
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