Re: [PATCH] x86/cpu: Enable SD_ASYM_PACKING for PKG domain on systems with AMD preferred cores

[kernel test robot <lkp@intel.com>]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20241202043724.3929062-1-superm1@kernel.org>
References: <20241202043724.3929062-1-superm1@kernel.org>
TO: Mario Limonciello <superm1@kernel.org>
TO: Borislav Petkov <bp@alien8.de>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: Dave Hansen <dave.hansen@linux.intel.com>
CC: "(maintainer:X86 ARCHITECTURE \(32-BIT AND 64-BIT\))" <x86@kernel.org>
CC: "H . Peter Anvin" <hpa@zytor.com>
CC: Mario Limonciello <mario.limonciello@amd.com>
CC: "(open list:X86 ARCHITECTURE \(32-BIT AND 64-BIT\))" <linux-kernel@vger.kernel.org>
CC: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
CC: Perry Yuan <perry.yuan@amd.com>

Hi Mario,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 40384c840ea1944d7c5a392e8975ed088ecf0b37]

url:    https://github.com/intel-lab-lkp/linux/commits/Mario-Limonciello/x86-cpu-Enable-SD_ASYM_PACKING-for-PKG-domain-on-systems-with-AMD-preferred-cores/20241202-124012
base:   40384c840ea1944d7c5a392e8975ed088ecf0b37
patch link:    https://lore.kernel.org/r/20241202043724.3929062-1-superm1%40kernel.org
patch subject: [PATCH] x86/cpu: Enable SD_ASYM_PACKING for PKG domain on systems with AMD preferred cores
:::::: branch date: 13 hours ago
:::::: commit date: 13 hours ago
config: x86_64-randconfig-161-20241202 (https://download.01.org/0day-ci/archive/20241203/202412030147.iL04d26O-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202412030147.iL04d26O-lkp@intel.com/

smatch warnings:
arch/x86/kernel/smpboot.c:508 x86_die_flags() warn: statement has no effect 3

vim +508 arch/x86/kernel/smpboot.c

108af4b4bd3813 Ricardo Neri      2023-08-14  499  
108af4b4bd3813 Ricardo Neri      2023-08-14  500  static int x86_die_flags(void)
108af4b4bd3813 Ricardo Neri      2023-08-14  501  {
d5fec370ef73d0 Mario Limonciello 2024-12-01  502  	if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU))
108af4b4bd3813 Ricardo Neri      2023-08-14  503  		return x86_sched_itmt_flags();
108af4b4bd3813 Ricardo Neri      2023-08-14  504  
d5fec370ef73d0 Mario Limonciello 2024-12-01  505  	switch (boot_cpu_data.x86_vendor) {
d5fec370ef73d0 Mario Limonciello 2024-12-01  506  	case X86_VENDOR_AMD:
d5fec370ef73d0 Mario Limonciello 2024-12-01  507  	case X86_VENDOR_HYGON:
d5fec370ef73d0 Mario Limonciello 2024-12-01 @508  		bool prefcore = false;
d5fec370ef73d0 Mario Limonciello 2024-12-01  509  
d5fec370ef73d0 Mario Limonciello 2024-12-01  510  		amd_detect_prefcore(&prefcore);
d5fec370ef73d0 Mario Limonciello 2024-12-01  511  		if (prefcore || cpu_feature_enabled(X86_FEATURE_AMD_HETEROGENEOUS_CORES))
d5fec370ef73d0 Mario Limonciello 2024-12-01  512  			return x86_sched_itmt_flags();
d5fec370ef73d0 Mario Limonciello 2024-12-01  513  	};
d5fec370ef73d0 Mario Limonciello 2024-12-01  514  
108af4b4bd3813 Ricardo Neri      2023-08-14  515  	return 0;
108af4b4bd3813 Ricardo Neri      2023-08-14  516  }
d3d37d850d1d77 Tim Chen          2016-11-22  517  

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