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MdeModulePkg/NonDiscoverablePciDevice: Remove the redundant check 

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1422

if (Attributes) {
  if ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0) {
    return EFI_UNSUPPORTED;
  }
}
In above code block,
"If ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0)" is TRUE,
the Attributes must be not 0. So we can remove the redundant
check "if (Attributes)".

Cc: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Dandan Bi 2018-12-28 13:17:50 +08:00 committed by Liming Gao
parent 9248a4717a
commit a53a888de8
1 changed files with 3 additions and 5 deletions
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8
MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c
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@ -1276,11 +1276,9 @@ PciIoAttributes (
Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This); Dev = NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(This);
if (Attributes) { if ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0) {
if ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0) { return EFI_UNSUPPORTED;
return EFI_UNSUPPORTED; }
}
}
Enable = FALSE; Enable = FALSE;
switch (Operation) { switch (Operation) {