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Mainline: ee34db3f271cea4d4252048617919c2caafe698b From: v6.7-rc5 Severity: Moderate task: 189525 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> (backported from commitf8f32f9126) K2CI-Arch: None Signed-off-by: k2ci <kernel-bot@kylinos.cn> Change-Id: Iaeddff763c0946aee2a43a02504a3c432ec56cfe Reviewed-on: http://gerrit.kylin.com/c/klinux/+/88460 Reviewed-by: Jackie Liu <liuyun01@kylinos.cn>