提交 76dc5268 编写于 作者: M Matthias Kaehlcke 提交者: Bjorn Helgaas

PCI: Make PCI_ROM_ADDRESS_MASK a 32-bit constant

A 64-bit value is not needed since a PCI ROM address consists in 32 bits.
This fixes a clang warning about "implicit conversion from 'unsigned long'
to 'u32'".

Also remove now unnecessary casts to u32 from __pci_read_base() and
pci_std_update_resource().
Signed-off-by: NMatthias Kaehlcke <mka@chromium.org>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
上级 c1ae3cfa
......@@ -231,7 +231,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
res->flags |= IORESOURCE_ROM_ENABLE;
l64 = l & PCI_ROM_ADDRESS_MASK;
sz64 = sz & PCI_ROM_ADDRESS_MASK;
mask64 = (u32)PCI_ROM_ADDRESS_MASK;
mask64 = PCI_ROM_ADDRESS_MASK;
}
if (res->flags & IORESOURCE_MEM_64) {
......
......@@ -63,7 +63,7 @@ static void pci_std_update_resource(struct pci_dev *dev, int resno)
mask = (u32)PCI_BASE_ADDRESS_IO_MASK;
new |= res->flags & ~PCI_BASE_ADDRESS_IO_MASK;
} else if (resno == PCI_ROM_RESOURCE) {
mask = (u32)PCI_ROM_ADDRESS_MASK;
mask = PCI_ROM_ADDRESS_MASK;
} else {
mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK;
......
......@@ -114,7 +114,7 @@
#define PCI_SUBSYSTEM_ID 0x2e
#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
#define PCI_ROM_ADDRESS_ENABLE 0x01
#define PCI_ROM_ADDRESS_MASK (~0x7ffUL)
#define PCI_ROM_ADDRESS_MASK (~0x7ffU)
#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
......
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