atmark@atde8:~/linux-4.9-x1-at30$ patch -p1 < patches/kernel_patches/4.19.38/0023-wlcore-Fixing-PN-drift-on-encrypted-link-after-recov.patch 
patching file drivers/net/wireless/ti/wl18xx/main.c
Hunk #1 succeeded at 1211 (offset -3 lines).
patching file drivers/net/wireless/ti/wl18xx/wl18xx.h
Hunk #1 FAILED at 27.
1 out of 2 hunks FAILED -- saving rejects to file drivers/net/wireless/ti/wl18xx/wl18xx.h.rej
patching file drivers/net/wireless/ti/wlcore/cmd.c
Hunk #1 succeeded at 337 (offset -10 lines).
Hunk #2 succeeded at 373 (offset -10 lines).
patching file drivers/net/wireless/ti/wlcore/main.c
Hunk #1 FAILED at 400.
Hunk #2 succeeded at 419 (offset -12 lines).
Hunk #3 succeeded at 2026 (offset -30 lines).
Hunk #4 succeeded at 3533 (offset -73 lines).
Hunk #5 succeeded at 3579 (offset -78 lines).
1 out of 5 hunks FAILED -- saving rejects to file drivers/net/wireless/ti/wlcore/main.c.rej
patching file drivers/net/wireless/ti/wlcore/wlcore_i.h