perf/x86/uncore: Don't WARN_ON_ONCE() for a broken discovery table
The kernel warning message is triggered, when SPR MCC is used. [ 17.945331] ------------[ cut here ]------------ [ 17.946305] WARNING: CPU: 65 PID: 1 at arch/x86/events/intel/uncore_discovery.c:184 intel_uncore_has_discovery_tables+0x4c0/0x65c [ 17.946305] Modules linked in: [ 17.946305] CPU: 65 PID: 1 Comm: swapper/0 Not tainted 5.4.17-2136.313.1-X10-2c+ #4 It's caused by the broken discovery table of UPI. The discovery tables are from hardware. Except for dropping the broken information, there is nothing Linux can do. Using WARN_ON_ONCE() is overkilled. Use the pr_info() to replace WARN_ON_ONCE(), and specify what uncore unit is dropped and the reason. Signed-off-by: NKan Liang <kan.liang@linux.intel.com> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Tested-by: NMichael Petlan <mpetlan@redhat.com> Link: https://lore.kernel.org/r/20230112200105.733466-6-kan.liang@linux.intel.com
Showing
想要评论请 注册 或 登录