[PULL,11/15] pci: Change error_report to assert(3)

Commit Message

Michael S. Tsirkin Oct. 30, 2020, 2:12 p.m. UTC

From: Ben Widawsky <[e-mail]>

Asserts are used for developer bugs. As registering a bar of the wrong
size is not something that should be possible for a user to achieve,
this is a developer bug.

While here, use the more obvious helper function.

Signed-off-by: Ben Widawsky <[e-mail]>
Message-Id: <[e-mail]>
Reviewed-by: Michael S. Tsirkin <[e-mail]>
Signed-off-by: Michael S. Tsirkin <[e-mail]>
Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
---
 hw/pci/pci.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

Patch

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index dc4019865b..e5b7c9a42b 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1151,11 +1151,7 @@  void pci_register_bar(PCIDevice *pci_dev, int region_num,
 
     assert(region_num >= 0);
     assert(region_num < PCI_NUM_REGIONS);
-    if (size & (size-1)) {
-        error_report("ERROR: PCI region size must be pow2 "
-                    "type=0x%x, size=0x%"FMT_PCIBUS"", type, size);
-        exit(1);
-    }
+    assert(is_power_of_2(size));
 
     r = &pci_dev->io_regions[region_num];
     r->addr = PCI_BAR_UNMAPPED;