CHECK: extern prototypes should be avoided in .h files #57: FILE: arch/x86/include/asm/vmware.h:78: +extern unsigned long vmware_tdx_hypercall(unsigned long cmd, total: 0 errors, 0 warnings, 1 checks, 156 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. Commit 585c6f595325 ("x86/vmware: Add TDX hypercall support") has style problems, please review. NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. total: 0 errors, 0 warnings, 1 checks, 156 lines checked