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commitd70f79fef6upstream. glibc ≥ 2.42 (GCC 15) defaults to -std=gnu23, which promotes -Wdiscarded-qualifiers to an error. In C23, strstr() and strchr() return "const char *". Change variable types to const char * where the pointers are never modified (res, sym_sfx, next_path). Suggested-by: Florian Weimer <fweimer@redhat.com> Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Link: https://lore.kernel.org/r/20251206092825.1471385-1-mikhail.v.gavrilov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> [ shung-hsi.yu: needed to fix kernel build failure due to libbpf since glibc 2.43+ (which adds 'const' qualifier to strstr). 'sym_sfx' hunk dropped because commitf8a05692de("libbpf: Work around kernel inconsistently stripping '.llvm.' suffix") is not present. ] Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>