From c76efd7225d33b48f7a1dd4519620f0b50267612 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 24 Apr 2019 14:19:57 +1000 Subject: [PATCH] pcie: Remove redundant test in pcie_mmcfg_data_{read,write}() These functions have an explicit test for accesses above the device's config size. But pci_host_config_{read,write}_common() which they're about to call already have checks against the config space limit and do the right thing. So, remove the redundant tests. Signed-off-by: David Gibson Message-Id: <20190424041959.4087-2-david@gibson.dropbear.id.au> --- hw/pci/pcie_host.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/hw/pci/pcie_host.c b/hw/pci/pcie_host.c index 553db56778..1ee4945a6d 100644 --- a/hw/pci/pcie_host.c +++ b/hw/pci/pcie_host.c @@ -47,11 +47,6 @@ static void pcie_mmcfg_data_write(void *opaque, hwaddr mmcfg_addr, } addr = PCIE_MMCFG_CONFOFFSET(mmcfg_addr); limit = pci_config_size(pci_dev); - if (limit <= addr) { - /* conventional pci device can be behind pcie-to-pci bridge. - 256 <= addr < 4K has no effects. */ - return; - } pci_host_config_write_common(pci_dev, addr, limit, val, len); } @@ -70,11 +65,6 @@ static uint64_t pcie_mmcfg_data_read(void *opaque, } addr = PCIE_MMCFG_CONFOFFSET(mmcfg_addr); limit = pci_config_size(pci_dev); - if (limit <= addr) { - /* conventional pci device can be behind pcie-to-pci bridge. - 256 <= addr < 4K has no effects. */ - return ~0x0; - } return pci_host_config_read_common(pci_dev, addr, limit, len); } -- 2.39.5