diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2021-04-01 19:44:15 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-04-30 22:38:32 +0300 |
| commit | 0a08bc07610e172972985d6322fd671cff76c928 (patch) | |
| tree | 8b2a6932b51288561d0423791c816f5126fff505 /drivers/pci | |
| parent | 4cf0abbce69bde3d07757dfa9be6420407fdbc45 (diff) | |
| download | linux-0a08bc07610e172972985d6322fd671cff76c928.tar.xz | |
PCI/VPD: Remove pci_vpd_find_tag() SRDT handling
Only SRDT tag is the end tag, and no caller is interested in it. This
allows to remove all SRDT tag handling.
Link: https://lore.kernel.org/r/3f63f06f-734f-8fff-9518-27fe1faf903d@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/vpd.c | 31 |
1 files changed, 6 insertions, 25 deletions
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; - - for (i = 0; i < len; ) { - u8 val = buf[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; + int i = 0; - 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; + /* 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; - 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; |