Hi, Compile linux-4.9.94 will have error related to KMOD_DECOMP_LEN undeclared. Searching string related to KMOD_DECOMP_LEN in linux-4.9.94 and linux-4.15.17 sources as below:
<mock-chroot>sh-4.2# grep -r KMOD_DECOMP_LEN ./linux-4.15.17 ./linux-4.15.17/tools/perf/tests/code-reading.c: char decomp_name[KMOD_DECOMP_LEN]; ./linux-4.15.17/tools/perf/util/dso.h:#define KMOD_DECOMP_LEN sizeof(KMOD_DECOMP_NAME) ./linux-4.15.17/tools/perf/util/annotate.c: char tmp[KMOD_DECOMP_LEN]; ./linux-4.15.17/tools/perf/util/dso.c: char newpath[KMOD_DECOMP_LEN]; sh-4.2# grep -r KMOD_DECOMP_LEN ./linux-4.9.94 ./linux-4.9.94/tools/perf/tests/code-reading.c: char decomp_name[KMOD_DECOMP_LEN]; ./linux-4.9.94/tools/perf/util/dso.c: char newpath[KMOD_DECOMP_LEN]; So I guess for linux-4.9.94 has not define KMOD_DECOMP_LEN in tools/perf/util/dso.h? Thanks. Regards, Giam Teck Choon