iscsi_ibft: Fix isa_bus_to_virt not working under ARM

The isa_bus_to_virt is only needed under X86 and in fact the code
that sets the ibft_phys_addr is only compiled under X86.

As such lets just ifdef the code.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Vijayendra Suman <vijayendra.suman@oracle.com>
CC: Maurizio Lombardi <mlombard@redhat.com>
CC: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Remove the ibft_phys_addr as it is defined in iscsi_ibft.h

diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 612a59e..6e97883 100644 (file)
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -86,10 +86,6 @@ MODULE_VERSION(IBFT_ISCSI_VERSION);
 
 static struct acpi_table_ibft *ibft_addr;
 
-#ifndef CONFIG_ISCSI_IBFT_FIND
-phys_addr_t ibft_phys_addr;
-#endif
-
 struct ibft_hdr {
        u8 id;
        u8 version;
@@ -851,7 +847,21 @@ static void __init acpi_find_ibft_region(void)
 {
 }
 #endif
-
+#ifdef CONFIG_ISCSI_IBFT_FIND
+static int __init acpi_find_isa_region(void)
+{
+       if (ibft_phys_addr) {
+               ibft_addr = isa_bus_to_virt(ibft_phys_addr);
+               return 0;
+       }
+       return -ENODEV;
+}
+#else
+static int __init acpi_find_isa_region(void)
+{
+       return -ENODEV;
+}
+#endif
 /*
  * ibft_init() - creates sysfs tree entries for the iBFT data.
  */
@@ -864,9 +874,7 @@ static int __init ibft_init(void)
           is called before ACPI tables are parsed and it only does
           legacy finding.
        */
-       if (ibft_phys_addr)
-               ibft_addr = isa_bus_to_virt(ibft_phys_addr);
-       else
+       if (acpi_find_isa_region())
                acpi_find_ibft_region();
 
        if (ibft_addr) {