[xen staging] vpci: introduce a local vpci_bar variable to modify_decoding()

[patchbot@xxxxxxx]

commit 26bf76b48bbce3e7b126290374c64966dca47561
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Wed Oct 26 14:57:41 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Oct 26 14:57:41 2022 +0200

    vpci: introduce a local vpci_bar variable to modify_decoding()
    
    This is done to shorten line length in the function in preparation for
    adding further usages of the vpci_bar data structure.
    
    No functional change.
    
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Henry Wang <Henry.Wang@xxxxxxx>
---
 xen/drivers/vpci/header.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/xen/drivers/vpci/header.c b/xen/drivers/vpci/header.c
index a1c928a0d2..eb9219a49a 100644
--- a/xen/drivers/vpci/header.c
+++ b/xen/drivers/vpci/header.c
@@ -103,24 +103,26 @@ static void modify_decoding(const struct pci_dev *pdev, 
uint16_t cmd,
 
     for ( i = 0; i < ARRAY_SIZE(header->bars); i++ )
     {
-        if ( !MAPPABLE_BAR(&header->bars[i]) )
+        struct vpci_bar *bar = &header->bars[i];
+
+        if ( !MAPPABLE_BAR(bar) )
             continue;
 
-        if ( rom_only && header->bars[i].type == VPCI_BAR_ROM )
+        if ( rom_only && bar->type == VPCI_BAR_ROM )
         {
             unsigned int rom_pos = (i == PCI_HEADER_NORMAL_NR_BARS)
                                    ? PCI_ROM_ADDRESS : PCI_ROM_ADDRESS1;
-            uint32_t val = header->bars[i].addr |
+            uint32_t val = bar->addr |
                            (map ? PCI_ROM_ADDRESS_ENABLE : 0);
 
-            header->bars[i].enabled = header->rom_enabled = map;
+            bar->enabled = header->rom_enabled = map;
             pci_conf_write32(pdev->sbdf, rom_pos, val);
             return;
         }
 
         if ( !rom_only &&
-             (header->bars[i].type != VPCI_BAR_ROM || header->rom_enabled) )
-            header->bars[i].enabled = map;
+             (bar->type != VPCI_BAR_ROM || header->rom_enabled) )
+            bar->enabled = map;
     }
 
     if ( !rom_only )
--
generated by git-patchbot for /home/xen/git/xen.git#staging