[Bug 245582] hwpstate_intel: Failed to set autonomous HWP for package

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245582

            Bug ID: 245582
           Summary: hwpstate_intel: Failed to set autonomous HWP for
                    package
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: ypankov at fastmail.com

That message seems to be printed unconditionally as we forgot to check the
actual return value here:

https://svnweb.freebsd.org/base/head/sys/x86/cpufreq/hwpstate_intel.c?revision=358333&view=markup#l463

Just for the record, relevant dmesg entries:

CPU: Intel(R) Core(TM) i9-10900X CPU @ 3.70GHz (3700.00-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x50657  Family=0x6  Model=0x55  Stepping=7
 
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
 
Features2=0x7ffefbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE
,OSXSAVE,AVX,F16C,RDRAND>
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x121<LAHF,ABM,Prefetch>
  Structured Extended
Features=0xd39ffffb<FSGSBASE,TSCADJ,BMI1,HLE,AVX2,FDPEXC,SMEP,BMI2,ERMS,INVPCID,RTM,PQM,NFPUSG,MPX,PQE,AVX512F,AVX512DQ,RDSEED,ADX,SMAP,C
LFLUSHOPT,CLWB,PROCTRACE,AVX512CD,AVX512BW,AVX512VL>
  Structured Extended Features2=0x800<AVX512VNNI>
  Structured Extended
Features3=0xbc000400<MD_CLEAR,IBPB,STIBP,L1DFL,ARCH_CAP,SSBD>
  XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
  IA32_ARCH_CAPS=0xab<RDCL_NO,IBRS_ALL,SKIP_L1DFL_VME,MDS_NO,TSX_CTRL>
  VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID,VID,PostIntr
  TSC: P-state invariant, performance statistics
...
hwpstate_intel0: <Intel Speed Shift> numa-domain 0 on cpu0
hwpstate_intel0: Failed to set autonomous HWP for package
(repeating for every hardware thread)

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