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35ad035b83
When building with Clang + -Wtautological-constant-compare:
drivers/md/dm-raid.c:619:8: warning: converting the result of '<<' to a
boolean always evaluates to true [-Wtautological-constant-compare]
r = !RAID10_OFFSET;
^
drivers/md/dm-raid.c:517:28: note: expanded from macro 'RAID10_OFFSET'
#define RAID10_OFFSET (1 << 16) /* stripes with data
copies area adjacent on devices */
^
1 warning generated.
Negating a non-zero number will always make it zero, which is the
default value of r in this function so this statement is unnecessary;
remove it so that clang no longer warns.
Link: https://github.com/ClangBuiltLinux/linux/issues/753
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.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.