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7e04a46d84
While reviewing lockdown patches, I discovered that we still enable /dev/port (CONFIG_DEVPORT) in skiroot. /dev/port is used for old x86 style IO accesses. It's set up in drivers/char/mem.c, and is only created if arch_has_dev_port() returns true. Per arch/powerpc/include/asm/io.h, on PPC64 with PCI, this is only true if there's a legacy ISA bridge. Even if a system has a legacy ISA bridge installed, we have no business accessing it in skiroot. Deselect CONFIG_DEVPORT for skiroot. Signed-off-by: Daniel Axtens <dja@axtens.net> [mpe: Incorporate emailed comments into the change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190627053008.29315-1-dja@axtens.net |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.