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cxl/pci: Remove pci request/release regions

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Quoting Dan, "... the request + release regions should probably just be
dropped. It's not like any of the register enumeration would collide
with someone else who already has the registers mapped. The collision
only comes when the registers are mapped for their final usage, and that
will have more precision in the request."

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Link: https://lore.kernel.org/r/163379785872.692348.8981679111988251260.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Ben Widawsky 2021-10-09 09:44:18 -07:00 committed by Dan Williams
parent ca76a3a805
commit 84e36a9d1b
1 changed files with 0 additions and 5 deletions
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5
drivers/cxl/pci.c
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@ -453,9 +453,6 @@ static int cxl_pci_setup_regs(struct cxl_mem *cxlm)
return -ENXIO;
}
if (pci_request_mem_regions(pdev, pci_name(pdev)))
return -ENODEV;
/* Get the size of the Register Locator DVSEC */
pci_read_config_dword(pdev, regloc + PCI_DVSEC_HEADER1, &regloc_size);
regloc_size = FIELD_GET(PCI_DVSEC_HEADER1_LENGTH_MASK, regloc_size);
@ -499,8 +496,6 @@ static int cxl_pci_setup_regs(struct cxl_mem *cxlm)
n_maps++;
}
pci_release_mem_regions(pdev);
for (i = 0; i < n_maps; i++) {
ret = cxl_map_regs(cxlm, &maps[i]);
if (ret)