[tip: perf/core] libperf: Add NULL pointer check for cpu_map iteration and NULL assignment for all_cpus.

The following commit has been merged into the perf/core branch of tip: Commit-ID: 44d041b7b2c11b6739501fd3763cc6fed62cf0ed Gitweb: https://git.kernel.org/tip/44d041b7b2c11b6739501fd3763cc6fed62cf0ed Author:He Zhe AuthorDate:Sun, 08 Mar 2020 18:59:17 +08:00 Committer: A

[tip: ras/core] x86/mcelog: Add compat_ioctl for 32-bit mcelog support

The following commit has been merged into the ras/core branch of tip: Commit-ID: 3b4ff4eb904fef04c36b39052ca8eb31fa41fad0 Gitweb: https://git.kernel.org/tip/3b4ff4eb904fef04c36b39052ca8eb31fa41fad0 Author:He Zhe AuthorDate:Wed, 04 Mar 2020 14:39:07 +08:00 Committer: Bo