[PATCH 4.9 40/86] Revert "x86/retpoline: Simplify vmexit_fill_RSB()"

4.9-stable review patch. If anyone has any objections, please let me know. -- From: David Woodhouse commit d1c99108af3c5992640aa2afa7d2e88c3775c06e upstream. This reverts commit 1dde7415e99933bb7293d6b2843752cbdb43ec11. By putting the RSB filling out of

[PATCH 4.9 40/86] Revert "x86/retpoline: Simplify vmexit_fill_RSB()"

4.9-stable review patch. If anyone has any objections, please let me know. -- From: David Woodhouse commit d1c99108af3c5992640aa2afa7d2e88c3775c06e upstream. This reverts commit 1dde7415e99933bb7293d6b2843752cbdb43ec11. By putting the RSB filling out of line and calling it,