cxl: use correct operator when writing pcie config space values

When writing a value to config space, cxl_pcie_write_config() calls
cxl_pcie_config_info() to obtain a mask and shift value, shifts the new
value accordingly, then uses the mask to combine the shifted value with the
existing value at the address as part of a read-modify-write pattern.

Currently, we use a logical OR operator rather than a bitwise OR operator,
which means any use of this function results in an incorrect value being
written. Replace the logical OR operator with a bitwise OR operator so the
value is written correctly.

Reported-by: Michael Ellerman <[email protected]>
Cc: [email protected]
Fixes: 6f7f0b3df6 ("cxl: Add AFU virtual PHB and kernel API")
Signed-off-by: Andrew Donnellan <[email protected]>
Acked-by: Ian Munsie <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

drivers/misc/cxl/vphb.c

@@ -203,7 +203,7 @@ static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
 	mask <<= shift;
 	val <<= shift;
 
-	v = (in_le32(ioaddr) & ~mask) || (val & mask);
+	v = (in_le32(ioaddr) & ~mask) | (val & mask);
 
 	out_le32(ioaddr, v);
 	return PCIBIOS_SUCCESSFUL;