Fredrik Noring 54a7151b14 kbuild: modversions: Fix relative CRC byte order interpretation ... Fix commit 56067812d5 ("kbuild: modversions: add infrastructure for emitting relative CRCs") where CRCs are interpreted in host byte order rather than proper kernel byte order. The bug is conditional on CONFIG_MODULE_REL_CRCS. For example, when loading a BE module into a BE kernel compiled with a LE system, the error "disagrees about version of symbol module_layout" is produced. A message such as "Found checksum D7FA6856 vs module 5668FAD7" will be given with debug enabled, which indicates an obvious endian problem within __kcrctab within the kernel image. The general solution is to use the macro TO_NATIVE, as is done in similar cases throughout modpost.c. With this correction it has been verified that a BE kernel compiled with a LE system accepts BE modules. This change has also been verified with a LE kernel compiled with a LE system, in which case TO_NATIVE returns its value unmodified since the byte orders match. This is by far the common case. Fixes: 56067812d5 ("kbuild: modversions: add infrastructure for emitting relative CRCs") Signed-off-by: Fredrik Noring <noring@nocrew.org> Cc: stable@vger.kernel.org Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>		2019-03-28 23:46:56 +09:00
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.gitignore
devicetable-offsets.c	platform-drivers-x86 for v5.1-1	2019-03-10 13:16:37 -07:00
empty.c
file2alias.c	platform-drivers-x86 for v5.1-1	2019-03-10 13:16:37 -07:00
Makefile
mk_elfconfig.c
modpost.c	kbuild: modversions: Fix relative CRC byte order interpretation	2019-03-28 23:46:56 +09:00
modpost.h
sumversion.c