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b05d66c882
Fixes the following clang warning introduced by commitd7bebcb4a8("s390: Optimize __pa/__va when RANDOMIZE_IDENTITY_BASE is off") arch/s390/mm/vmem.c:665:36: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 665 | __set_memory_4k(__va(0), __va(0) + ident_map_size); | ~~~~~~~ ^ Fixes:d7bebcb4a8("s390: Optimize __pa/__va when RANDOMIZE_IDENTITY_BASE is off") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202501270309.HzsVNo3o-lkp@intel.com/ Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.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 reStructuredText 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.