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780f6a9afe
Fix the following -Wstringop-overflow warning when building with GCC 11+:
lib/zstd/decompress/huf_decompress.c: In function ‘HUF_readDTableX2_wksp’:
lib/zstd/decompress/huf_decompress.c:700:5: warning: ‘HUF_fillDTableX2.constprop’ accessing 624 bytes in a region of size 52 [-Wstringop-overflow=]
700 | HUF_fillDTableX2(dt, maxTableLog,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
701 | wksp->sortedSymbol, sizeOfSort,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
702 | wksp->rankStart0, wksp->rankVal, maxW,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
703 | tableLog+1,
| ~~~~~~~~~~~
704 | wksp->calleeWksp, sizeof(wksp->calleeWksp) / sizeof(U32));
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lib/zstd/decompress/huf_decompress.c:700:5: note: referencing argument 6 of type ‘U32 (*)[13]’ {aka ‘unsigned int (*)[13]’}
lib/zstd/decompress/huf_decompress.c:571:13: note: in a call to function ‘HUF_fillDTableX2.constprop’
571 | static void HUF_fillDTableX2(HUF_DEltX2* DTable, const U32 targetLog,
| ^~~~~~~~~~~~~~~~
by using pointer notation instead of array notation.
This is one of the last remaining warnings to be fixed before globally
enabling -Wstringop-overflow.
Co-developed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Nick Terrell <terrelln@fb.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nick Terrell <terrelln@fb.com>
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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.