Hi all, After merging the tip tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: kernel/events/core.c: In function 'perf_event_setup_cpumask': kernel/events/core.c:14012:13: warning: the comparison will always evaluate as 'true' for the address of 'thread_sibling' will never be NULL [-Waddress] 14012 | if (!topology_sibling_cpumask(cpu)) { | ^ In file included from include/linux/topology.h:30, from include/linux/gfp.h:8, from include/linux/xarray.h:16, from include/linux/list_lru.h:14, from include/linux/fs.h:13, from kernel/events/core.c:11: include/linux/arch_topology.h:78:19: note: 'thread_sibling' declared here 78 | cpumask_t thread_sibling; | ^~~~~~~~~~~~~~ Introduced by commit 4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope") -- Cheers, Stephen Rothwell
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