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Code Issues Releases Wiki Activity

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>
This commit is contained in:
Heiner Kallweit 2021-04-01 18:44:15 +02:00 committed by Bjorn Helgaas
parent 4cf0abbce6
commit 0a08bc0761
1 changed files with 6 additions and 25 deletions
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31
drivers/pci/vpd.c
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@ -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;