# DF-5747 fix build: patch application + clean rebuild + disassembly proof

## patch -p3 < fix.diff
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|--- a/sys/netbt/rfcomm_upper.c
|+++ b/sys/netbt/rfcomm_upper.c
--------------------------
Patching file rfcomm_upper.c using Plan A...
Hunk #1 succeeded at 104.
done

## clean relink (make clean; MAKEOBJDIRPREFIX=$PWD/obj; make)
cc -Wl,--build-id=sha1 -nostdlib -Wl,--hash-style=sysv   -r -Wl,-d -o rfcomm_up5747.ko harness5747.o l2cap_stub.o rfcomm_session.o rfcomm_dlc.o rfcomm_upper.o

## objdump -d rfcomm_up5747.ko | awk '/<rfcomm_bind>:/,/ret/'
00000000000026e0 <rfcomm_bind>:
    26e0:	66 83 7f 0c 00       	cmpw   $0x0,0xc(%rdi)     <- dlc->rd_state != CLOSED ?
    26e5:	b8 16 00 00 00       	mov    $0x16,%eax          <- EINVAL (22)
    26ea:	75 11                	jne    26fd <rfcomm_bind+0x1d>  <- return EINVAL
    26ec:	48 8b 56 08          	mov    0x8(%rsi),%rdx
    26f0:	48 8b 06             	mov    (%rsi),%rax
    26f3:	48 89 57 1c          	mov    %rdx,0x1c(%rdi)     <- memcpy laddr (only when CLOSED)
    26f7:	48 89 47 14          	mov    %rax,0x14(%rdi)
    26fb:	31 c0                	xor    %eax,%eax           <- return 0
    26fd:	c3                   	retq   

NOTE: a first fix rebuild without 'make clean'/MAKEOBJDIRPREFIX linked a stale
rfcomm_upper.o from a second objdir and showed unchanged behaviour; the clean
rebuild above is the validated one (see fix_run.log: bind #2 -> 22).