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James Hogan 550ba9729c MIPS: CM: Drop WARN_ON(vp != 0) commit `c04de7b1ad` upstream. Since commit `68923cdc2e` ("MIPS: CM: Add cluster & block args to mips_cm_lock_other()"), mips_smp_send_ipi_mask() has used mips_cm_lock_other_cpu() with each CPU number, rather than mips_cm_lock_other() with the first VPE in each core. Prior to r6, multicore multithreaded systems such as dual-core dual-thread interAptivs with CPU Idle enabled (e.g. MIPS Creator Ci40) results in mips_cm_lock_other() repeatedly hitting WARN_ON(vp != 0). There doesn't appear to be anything fundamentally wrong about passing a non-zero VP/VPE number, even if it is a core's region that is locked into the other region before r6, so remove that particular WARN_ON(). Fixes: `68923cdc2e` ("MIPS: CM: Add cluster & block args to mips_cm_lock_other()") Signed-off-by: James Hogan <jhogan@kernel.org> Reviewed-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/17883/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2018-01-23 19:58:19 +01:00
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README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.