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0e1cd3d9f8
PCI core add pci_find_vsec_capability() to query VSEC. We can use that core API to simplify the code. The only logical change is that pci_find_vsec_capability check the Vendor ID before finding the VSEC. PCI spec rev 5.0 says in 7.9.5.2 Vendor-Specific Header: VSEC ID - This field is a vendor-defined ID number that indicates the nature and format of the VSEC structure Software must qualify the Vendor ID before interpreting this field. Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230804075630.186054-1-wangxiongfeng2@huawei.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.