From: kernel test robot <lkp@intel.com>
To: Isaku Yamahata <isaku.yamahata@intel.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [intel-tdx:kvm-upstream-workaround 55/335] arch/x86/include/asm/tdx.h:114:49: warning: shift count >= width of type
Date: Fri, 7 Apr 2023 10:25:00 +0800 [thread overview]
Message-ID: <202304071045.PzgBSvjX-lkp@intel.com> (raw)
tree: https://github.com/intel/tdx.git kvm-upstream-workaround
head: 9b1b005c63f21cbc8dc4f1691b05964c90240385
commit: 1a6c8c8864885c1d1ca944cd674c493141a7537f [55/335] KVM: TDX: Add C wrapper functions for SEAMCALLs to the TDX module
config: i386-randconfig-a004-20230403 (https://download.01.org/0day-ci/archive/20230407/202304071045.PzgBSvjX-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel/tdx/commit/1a6c8c8864885c1d1ca944cd674c493141a7537f
git remote add intel-tdx https://github.com/intel/tdx.git
git fetch --no-tags intel-tdx kvm-upstream-workaround
git checkout 1a6c8c8864885c1d1ca944cd674c493141a7537f
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 prepare
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304071045.PzgBSvjX-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/x86/kernel/cpu/common.c:32:
In file included from arch/x86/include/asm/hypervisor.h:37:
In file included from arch/x86/include/asm/kvm_para.h:10:
>> arch/x86/include/asm/tdx.h:114:49: warning: shift count >= width of type [-Wshift-count-overflow]
struct tdx_module_output *out) { return TDX_SEAMCALL_UD; };
^~~~~~~~~~~~~~~
arch/x86/include/asm/tdx.h:24:28: note: expanded from macro 'TDX_SEAMCALL_UD'
#define TDX_SEAMCALL_UD (TDX_SW_ERROR | X86_TRAP_UD)
^~~~~~~~~~~~
arch/x86/include/asm/tdx.h:20:25: note: expanded from macro 'TDX_SW_ERROR'
#define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40))
^~~~~~~~~
arch/x86/include/asm/tdx.h:19:21: note: expanded from macro 'TDX_ERROR'
#define TDX_ERROR _BITUL(63)
^~~~~~~~~~
include/uapi/linux/const.h:28:27: note: expanded from macro '_BITUL'
#define _BITUL(x) (_UL(1) << (x))
^ ~~~
1 warning generated.
--
In file included from arch/x86/platform/pvh/enlighten.c:7:
In file included from arch/x86/include/asm/hypervisor.h:37:
In file included from arch/x86/include/asm/kvm_para.h:10:
>> arch/x86/include/asm/tdx.h:114:49: warning: shift count >= width of type [-Wshift-count-overflow]
struct tdx_module_output *out) { return TDX_SEAMCALL_UD; };
^~~~~~~~~~~~~~~
arch/x86/include/asm/tdx.h:24:28: note: expanded from macro 'TDX_SEAMCALL_UD'
#define TDX_SEAMCALL_UD (TDX_SW_ERROR | X86_TRAP_UD)
^~~~~~~~~~~~
arch/x86/include/asm/tdx.h:20:25: note: expanded from macro 'TDX_SW_ERROR'
#define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40))
^~~~~~~~~
arch/x86/include/asm/tdx.h:19:21: note: expanded from macro 'TDX_ERROR'
#define TDX_ERROR _BITUL(63)
^~~~~~~~~~
include/uapi/linux/const.h:28:27: note: expanded from macro '_BITUL'
#define _BITUL(x) (_UL(1) << (x))
^ ~~~
arch/x86/platform/pvh/enlighten.c:120:13: warning: no previous prototype for function 'xen_prepare_pvh' [-Wmissing-prototypes]
void __init xen_prepare_pvh(void)
^
arch/x86/platform/pvh/enlighten.c:120:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init xen_prepare_pvh(void)
^
static
2 warnings generated.
--
In file included from arch/x86/kernel/asm-offsets.c:22:
>> arch/x86/include/asm/tdx.h:114:49: warning: shift count >= width of type [-Wshift-count-overflow]
struct tdx_module_output *out) { return TDX_SEAMCALL_UD; };
^~~~~~~~~~~~~~~
arch/x86/include/asm/tdx.h:24:28: note: expanded from macro 'TDX_SEAMCALL_UD'
#define TDX_SEAMCALL_UD (TDX_SW_ERROR | X86_TRAP_UD)
^~~~~~~~~~~~
arch/x86/include/asm/tdx.h:20:25: note: expanded from macro 'TDX_SW_ERROR'
#define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40))
^~~~~~~~~
arch/x86/include/asm/tdx.h:19:21: note: expanded from macro 'TDX_ERROR'
#define TDX_ERROR _BITUL(63)
^~~~~~~~~~
include/uapi/linux/const.h:28:27: note: expanded from macro '_BITUL'
#define _BITUL(x) (_UL(1) << (x))
^ ~~~
1 warning generated.
vim +114 arch/x86/include/asm/tdx.h
102
103 #ifdef CONFIG_INTEL_TDX_HOST
104 bool platform_tdx_enabled(void);
105 int tdx_cpu_enable(void);
106 int tdx_enable(void);
107 u64 __seamcall(u64 op, u64 rcx, u64 rdx, u64 r8, u64 r9,
108 struct tdx_module_output *out);
109 #else /* !CONFIG_INTEL_TDX_HOST */
110 static inline bool platform_tdx_enabled(void) { return false; }
111 static inline int tdx_cpu_enable(void) { return -EINVAL; }
112 static inline int tdx_enable(void) { return -EINVAL; }
113 static inline u64 __seamcall(u64 op, u64 rcx, u64 rdx, u64 r8, u64 r9,
> 114 struct tdx_module_output *out) { return TDX_SEAMCALL_UD; };
115 #endif /* CONFIG_INTEL_TDX_HOST */
116
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
reply other threads:[~2023-04-07 2:25 UTC|newest]
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