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Subject[intel-tdx:guest-upstream 23/33] arch/x86/kernel/cc_platform.c:82:10: warning: no previous prototype for 'pgprot_encrypted'
tree:   https://github.com/intel/tdx.git guest-upstream
head: a19e5eff857e7bb62ae28f50bf8416a71fee443d
commit: f4b36432cc6c6a9388da5f75da8bffa78d6a74a9 [23/33] x86/tdx: Make pages shared in ioremap()
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220107/202201072256.yQG6agRZ-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/intel/tdx/commit/f4b36432cc6c6a9388da5f75da8bffa78d6a74a9
git remote add intel-tdx https://github.com/intel/tdx.git
git fetch --no-tags intel-tdx guest-upstream
git checkout f4b36432cc6c6a9388da5f75da8bffa78d6a74a9
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/cc_platform.c:82:10: warning: no previous prototype for 'pgprot_encrypted' [-Wmissing-prototypes]
82 | pgprot_t pgprot_encrypted(pgprot_t prot)
| ^~~~~~~~~~~~~~~~
>> arch/x86/kernel/cc_platform.c:93:10: warning: no previous prototype for 'pgprot_decrypted' [-Wmissing-prototypes]
93 | pgprot_t pgprot_decrypted(pgprot_t prot)
| ^~~~~~~~~~~~~~~~


vim +/pgprot_encrypted +82 arch/x86/kernel/cc_platform.c

81
> 82 pgprot_t pgprot_encrypted(pgprot_t prot)
83 {
84 if (sme_me_mask)
85 return __pgprot(__sme_set(pgprot_val(prot)));
86 else if (is_tdx_guest())
87 return __pgprot(pgprot_val(prot) & ~tdx_shared_mask());
88
89 return prot;
90 }
91 EXPORT_SYMBOL_GPL(pgprot_encrypted);
92
> 93 pgprot_t pgprot_decrypted(pgprot_t prot)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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