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Clang produces the following warning
drivers/thermal/armada_thermal.c:270:33: warning: shifting a negative
signed value is undefined [-Wshift-negative-value]
1 warning reg &= ~CONTROL1_TSEN_AVG_MASK <<
CONTROL1_TSEN_AVG_SHIFT; generated
.
~~~~~~~~~~~~~~~~~~~~~~~ ^
CONTROL1_TSEN_AVG_SHIFT is defined to be zero.
Since shifting by zero does nothing this variable can be removed.
Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/532
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Zhang Rui <rui.zhang@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.