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e00a6e3392
ghes_read_estatus() reads the record address, then the record's header, then performs some sanity checks before reading the records into the provided estatus buffer. To provide this estatus buffer the caller must know the size of the records in advance, or always provide a worst-case sized buffer as happens today for the non-NMI notifications. Add a function to peek at the record's header to find the size. This will let the NMI path allocate the right amount of memory before reading the records, instead of using the worst-case size, and having to copy the records. Split ghes_read_estatus() to create __ghes_peek_estatus() which returns the address and size of the CPER records. Signed-off-by: James Morse <james.morse@arm.com> Changes since v7: * Grammar * concistent argument ordering Changes since v6: * Additional buf_addr = 0 error handling * Moved checking out of peek-estatus * Reworded an error message so we can tell them apart 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.