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bus/pci: clear undefined bits in Windows segment parsing

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When reading bus and segment values using SPDRP_BUSNUMBER
bits 24-31 are undefined.

They are cleared to verify we read the segment number correctly.

Fixes: c3adf8144a ("bus/pci: support segment as address domain on Windows")
Cc: stable@dpdk.org

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
This commit is contained in:
Tal Shnaiderman 2020-10-14 22:30:01 +03:00 committed by Thomas Monjalon
parent 4ffc2276e2
commit c12b14889e
1 changed files with 1 additions and 1 deletions
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2
drivers/bus/pci/windows/pci.c
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@ -195,7 +195,7 @@ get_device_pci_address(HDEVINFO dev_info,
return -1; return -1;
} }
addr->domain = bus_num >> 8; addr->domain = (bus_num >> 8) & 0xffff;
addr->bus = bus_num & 0xff; addr->bus = bus_num & 0xff;
addr->devid = dev_and_func >> 16; addr->devid = dev_and_func >> 16;
addr->function = dev_and_func & 0xffff; addr->function = dev_and_func & 0xffff;