[PATCH 4.14 069/137] perf/x86/intel/lbr: Fix incomplete LBR call stack

4.14-stable review patch. If anyone has any objections, please let me know. -- From: Kan Liang [ Upstream commit 0592e57b24e7e05ec1f4c50b9666c013abff7017 ] LBR has a limited stack size. If a task has a deeper call stack than LBR's stack size, only the overflowed part is

[PATCH 4.14 069/137] perf/x86/intel/lbr: Fix incomplete LBR call stack

4.14-stable review patch. If anyone has any objections, please let me know. -- From: Kan Liang [ Upstream commit 0592e57b24e7e05ec1f4c50b9666c013abff7017 ] LBR has a limited stack size. If a task has a deeper call stack than LBR's stack size, only the overflowed part is