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265baca69a
Bjorn suggests using pdev->dev.groups for attribute_groups constructed on PCI device enumeration: "Is it feasible to build an attribute group in pci_doe_init() and add it to dev->groups so device_add() will automatically add them?" https://lore.kernel.org/r/20231019165829.GA1381099@bhelgaas Unfortunately on s390, pcibios_device_add() usurps pdev->dev.groups for arch-specific attribute_groups, preventing its use for anything else. Introduce an ARCH_PCI_DEV_GROUPS macro which arches can define in <asm/pci.h>. The macro is visible in drivers/pci/pci-sysfs.c through the inclusion of <linux/pci.h>, which in turn includes <asm/pci.h>. On s390, define the macro to the three attribute_groups previously assigned to pdev->dev.groups. Thereby pdev->dev.groups is made available for use by the PCI core. As a side effect, arch/s390/pci/pci_sysfs.c no longer needs to be compiled into the kernel if CONFIG_SYSFS=n. Link: https://lore.kernel.org/r/7b970f7923e373d1b23784721208f93418720485.1722870934.git.lukas@wunner.de Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Niklas Schnelle <schnelle@linux.ibm.com> |
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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 reStructuredText 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.