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In function arm_spe_get_events(), the event packet's 'index' is assigned as payload length, but the flow is not directive: it firstly gets the packet length from the return value of arm_spe_get_payload(), the value includes header length (1) and payload length: int ret = arm_spe_get_payload(buf, len, packet); and then reduces header length from packet length, so finally get the payload length: packet->index = ret - 1; To simplify the code, this patch directly assigns payload length to event packet's index; and at the end it calls arm_spe_get_payload() to return the payload value. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Link: https://lore.kernel.org/r/20201111071149.815-5-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| init | ||
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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.