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pcie: Remove redundant test in pcie_mmcfg_data_{read,write}()

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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 <david@gibson.dropbear.id.au>
Message-Id: <20190424041959.4087-2-david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2019-04-24 14:19:57 +10:00 committed by Michael S. Tsirkin
parent acbd487ddb
commit c76efd7225
1 changed files with 0 additions and 10 deletions
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10
hw/pci/pcie_host.c
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@ -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);
}