powerpc/kernel: Remove error message in pcibios_setup_phb_resources()

The CAPI driver creates virtual PHB (vPHB) from the CAPI adapter.
The vPHB's IO and memory windows aren't built from device-tree node
as we do for normal PHBs. A error message is thrown in below path
when trying to probe AFUs contained in the adapter. The error message
is confusing and unnecessary.

    cxl_probe()
    pci_init_afu()
    cxl_pci_vphb_add()
    pcibios_scan_phb()
    pcibios_setup_phb_resources()

This removes the error message. We might have the case where the
first memory window on real PHB isn't populated properly because
of error in "ranges" property in the device-tree node. We can check
the device-tree instead for that. This also removes one unnecessary
blank line in the function.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 2 insertions, 8 deletions

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 74bec5498972..05bfdaeaa2f9 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1559,16 +1559,10 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
         /* Hookup PHB Memory resources */
         for (i = 0; i < 3; ++i) {
                 res = &hose->mem_resources[i];
-                if (!res->flags) {
-                        if (i == 0)
-                                printk(KERN_ERR "PCI: Memory resource 0 not set for "
-                                       "host bridge %s (domain %d)\n",
-                                       hose->dn->full_name, hose->global_number);
+                if (!res->flags)
                         continue;
-                }
-                offset = hose->mem_offset[i];
-
 
+                offset = hose->mem_offset[i];
                 pr_debug("PCI: PHB MEM resource %d = %pR off 0x%08llx\n", i,
                          res, (unsigned long long)offset);