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| author | Xiongfeng Wang <wangxiongfeng2@huawei.com> | 2023-08-02 11:07:26 +0300 |
|---|---|---|
| committer | Xu Yilun <yilun.xu@intel.com> | 2023-08-07 13:21:40 +0300 |
| commit | 8607d9c1bd57da0a2d5f8ab2ec32b6ef7d85e66a (patch) | |
| tree | b83b974108bd5bb08bab492c131016fd3f3b6d47 /drivers/fpga/dfl-pci.c | |
| parent | 3969f6458f783d2b4b8b15bef1eeab674eaa34bd (diff) | |
| download | linux-8607d9c1bd57da0a2d5f8ab2ec32b6ef7d85e66a.tar.xz | |
fpga: dfl-pci: Use pci_find_vsec_capability() to simplify the code
PCI core add pci_find_vsec_capability() to query VSEC. We can use that
core API to simplify the code.
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230802080726.178194-1-wangxiongfeng2@huawei.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Diffstat (limited to 'drivers/fpga/dfl-pci.c')
| -rw-r--r-- | drivers/fpga/dfl-pci.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl-pci.c index 1bc04378118c..98b8fd16183e 100644 --- a/drivers/fpga/dfl-pci.c +++ b/drivers/fpga/dfl-pci.c @@ -156,19 +156,12 @@ static int *cci_pci_create_irq_table(struct pci_dev *pcidev, unsigned int nvec) static int find_dfls_by_vsec(struct pci_dev *pcidev, struct dfl_fpga_enum_info *info) { - u32 bir, offset, vndr_hdr, dfl_cnt, dfl_res; - int dfl_res_off, i, bars, voff = 0; + u32 bir, offset, dfl_cnt, dfl_res; + int dfl_res_off, i, bars, voff; resource_size_t start, len; - while ((voff = pci_find_next_ext_capability(pcidev, voff, PCI_EXT_CAP_ID_VNDR))) { - vndr_hdr = 0; - pci_read_config_dword(pcidev, voff + PCI_VNDR_HEADER, &vndr_hdr); - - if (PCI_VNDR_HEADER_ID(vndr_hdr) == PCI_VSEC_ID_INTEL_DFLS && - pcidev->vendor == PCI_VENDOR_ID_INTEL) - break; - } - + voff = pci_find_vsec_capability(pcidev, PCI_VENDOR_ID_INTEL, + PCI_VSEC_ID_INTEL_DFLS); if (!voff) { dev_dbg(&pcidev->dev, "%s no DFL VSEC found\n", __func__); return -ENODEV; |