Both the version check for include of <linux/frame.h> in common/crosspage.c
and the comment explaining it are wrong for multiple reasons:
1. <linux/frame.h> was introduced in v4.6-rc1, not v4.5-rc5
2. ANNOTATE_INTRA_FUNCTION_CALL was introduced in v5.8-rc1, not v5.7
3. Even if it were, the check should use ">=", not ">"
4. Most important, the code in fact needs STACK_FRAME_NON_STANDARD
Without the definition of STACK_FRAME_NON_STANDARD, build against vanilla
5.7 kernel fails on objtool error (but succeeds against 5.7.1, because of
the mistake from point 3).
Change the check from "> 5.7" to ">= 4.6" to get STACK_FRAME_NON_STANDARD
whenever available and update the explaining comment.
Michal Kubecek
9366e2f3f3