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| Filename | Latest commit message | Latest commit date |
|---|---|---|
20e07af71f
Adopt nvram module to reduce code duplication. This means CONFIG_NVRAM becomes available to PPC64 builds. Previously it was only available to PPC32 builds because it depended on CONFIG_GENERIC_NVRAM. The IOC_NVRAM_GET_OFFSET ioctl as implemented on PPC64 validates the offset returned by pmac_get_partition(). Do the same in the nvram module. Note that the old PPC32 generic_nvram module lacked this test. So when CONFIG_PPC32 && CONFIG_PPC_PMAC, the IOC_NVRAM_GET_OFFSET ioctl would have returned 0 (always). But when CONFIG_PPC64 && CONFIG_PPC_PMAC, the IOC_NVRAM_GET_OFFSET ioctl would have returned -1 (which is -EPERM) when the requested partition was not found. With this patch, the result is now -EINVAL on both PPC32 and PPC64 when the requested PowerMac NVRAM partition is not found. This is a userspace- visible change, in the non-existent partition case, which would be in an error path for an IOC_NVRAM_GET_OFFSET ioctl syscall. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| 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.