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Naveen N. Rao a4979a7e71 powerpc/ftrace: Pass the correct stack pointer for DYNAMIC_FTRACE_WITH_REGS
For DYNAMIC_FTRACE_WITH_REGS, we should be passing-in the original set
of registers in pt_regs, to capture the state _before_ ftrace_caller.
However, we are instead passing the stack pointer *after* allocating a
stack frame in ftrace_caller. Fix this by saving the proper value of r1
in pt_regs. Also, use SAVE_10GPRS() to simplify the code.

Fixes: 153086644f ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-06-16 19:49:43 +10:00
arch powerpc/ftrace: Pass the correct stack pointer for DYNAMIC_FTRACE_WITH_REGS 2017-06-16 19:49:43 +10:00
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Documentation powerpc/64s: Add dt_cpu_ftrs boot time setup option 2017-06-01 19:54:33 +10:00
drivers cxl: Fix error path on bad ioctl 2017-06-08 20:42:31 +10:00
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tools selftests/powerpc: Fix TM resched DSCR test with some compilers 2017-05-19 19:46:34 +10:00
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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.