read_user_stack_64 225 arch/powerpc/perf/callchain.c if (read_user_stack_64((unsigned long __user *) &sf->pinfo, &pinfo) || read_user_stack_64 226 arch/powerpc/perf/callchain.c read_user_stack_64((unsigned long __user *) &sf->puc, &puc)) read_user_stack_64 249 arch/powerpc/perf/callchain.c if (!valid_user_sp(sp, 1) || read_user_stack_64(fp, &next_sp)) read_user_stack_64 251 arch/powerpc/perf/callchain.c if (level > 0 && read_user_stack_64(&fp[2], &next_ip)) read_user_stack_64 269 arch/powerpc/perf/callchain.c if (read_user_stack_64(&uregs[PT_NIP], &next_ip) || read_user_stack_64 270 arch/powerpc/perf/callchain.c read_user_stack_64(&uregs[PT_LNK], &lr) || read_user_stack_64 271 arch/powerpc/perf/callchain.c read_user_stack_64(&uregs[PT_R1], &sp))