diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c index 79d4313c91a3..562d79b597b3 100644 --- a/drivers/pci/vpd.c +++ b/drivers/pci/vpd.c @@ -412,33 +412,14 @@ void pcie_vpd_remove_sysfs_dev_files(struct pci_dev *dev) int pci_vpd_find_tag(const u8 *buf, unsigned int len, u8 rdt) { - int i; + int i = 0; - for (i = 0; i < len; ) { - u8 val = buf[i]; + /* look for LRDT tags only, end tag is the only SRDT tag */ + while (i + PCI_VPD_LRDT_TAG_SIZE <= len && buf[i] & PCI_VPD_LRDT) { + if (buf[i] == rdt) + return i; - if (val & PCI_VPD_LRDT) { - /* Don't return success of the tag isn't complete */ - if (i + PCI_VPD_LRDT_TAG_SIZE > len) - break; - - if (val == rdt) - return i; - - i += PCI_VPD_LRDT_TAG_SIZE + - pci_vpd_lrdt_size(&buf[i]); - } else { - u8 tag = val & ~PCI_VPD_SRDT_LEN_MASK; - - if (tag == rdt) - return i; - - if (tag == PCI_VPD_SRDT_END) - break; - - i += PCI_VPD_SRDT_TAG_SIZE + - pci_vpd_srdt_size(&buf[i]); - } + i += PCI_VPD_LRDT_TAG_SIZE + pci_vpd_lrdt_size(buf + i); } return -ENOENT;