Coverity complains about unintended sign extension in cnb20le_res() in
arch/x86/pci/broadcom_bus.c here:
60 word1 = read_pci_config_16(bus, slot, func, 0xc4);
61 word2 = read_pci_config_16(bus, slot, func, 0xc6);
62 if (word1 != word2) {
CID 138749 (#1 of 2): Unintended sign extension (SIGN_EXTENSION)
sign_extension: Suspicious implicit sign extension: word1 with type
unsigned short (16 bits, unsigned) is promoted in (word1 << 16) | 0 to
type int (32 bits, signed), then sign-extended to type unsigned long
long (64 bits, unsigned). If (word1 << 16) | 0 is greater than
0x7FFFFFFF, the upper bits of the result will all be 1.
63 res.start = (word1 << 16) | 0x0000;
CID 138750: Unintended sign extension (SIGN_EXTENSION) [select issue]
64 res.end = (word2 << 16) | 0xffff;
65 res.flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
66 update_res(info, res.start, res.end, res.flags, 0);
67 }
Bjorn
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
