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Observing link failure as follows when CONFIG_ACPI is set but both CONFIG_NLS and CONFIG_PCI are no set: drivers/acpi/device_sysfs.o: In function `description_show': device_sysfs.c:(.text+0x48a): undefined reference to `utf16s_to_utf8s' This issue was previously addressed implicitly by commit8a226e00ee(PCI: pci-label: Fix build failure when CONFIG_NLS is set to 'm' by allmodconfig) causing PCI_LABEL to be selected when ACPI was set which caused NLS to be selected too in that case. However, after commit5d32a66541(PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set) it is possible to build ACPI support without PCI, so make ACPI select NLS directly to cover that case. Fixes:5d32a66541(PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set) Signed-off-by: Sinan Kaya <okaya@kernel.org> [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.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.