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Sourabh Jain c171a5f799 powerpc/kexec/core: use big-endian types for crash variables 
[ Upstream commit 20197b967a ]

Use explicit word-sized big-endian types for kexec and crash related
variables. This makes the endianness unambiguous and avoids type
mismatches that trigger sparse warnings.

The change addresses sparse warnings like below (seen on both 32-bit
and 64-bit builds):

CHECK   ../arch/powerpc/kexec/core.c
sparse:    expected unsigned int static [addressable] [toplevel] [usertype] crashk_base
sparse:    got restricted __be32 [usertype]
sparse: warning: incorrect type in assignment (different base types)
sparse:    expected unsigned int static [addressable] [toplevel] [usertype] crashk_size
sparse:    got restricted __be32 [usertype]
sparse: warning: incorrect type in assignment (different base types)
sparse:    expected unsigned long long static [addressable] [toplevel] mem_limit
sparse:    got restricted __be32 [usertype]
sparse: warning: incorrect type in assignment (different base types)
sparse:    expected unsigned int static [addressable] [toplevel] [usertype] kernel_end
sparse:    got restricted __be32 [usertype]

No functional change intended.

Fixes: ea961a828f ("powerpc: Fix endian issues in kexec and crash dump code")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512221405.VHPKPjnp-lkp@intel.com/
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20251224151257.28672-1-sourabhjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-19 16:08:11 +01:00
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README 

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.