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commit ee34db3f271cea4d4252048617919c2caafe698b upstream. All addresses printed by checkstack have an extra incorrect 0 appended at the end. This was introduced with commit677f1410e0("scripts/checkstack.pl: don't display $dre as different entity"): since then the address is taken from the line which contains the function name, instead of the line which contains stack consumption. E.g. on s390: 0000000000100a30 <do_one_initcall>: ... 100a44: e3 f0 ff 70 ff 71 lay %r15,-144(%r15) So the used regex which matches spaces and hexadecimal numbers to extract an address now matches a different substring. Subsequently replacing spaces with 0 appends a zero at the and, instead of replacing leading spaces. Fix this by using the proper regex, and simplify the code a bit. Link: https://lkml.kernel.org/r/20231120183719.2188479-2-hca@linux.ibm.com Fixes:677f1410e0("scripts/checkstack.pl: don't display $dre as different entity") Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Cc: Maninder Singh <maninder1.s@samsung.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Vaneet Narang <v.narang@samsung.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.