Re: CVS commit: src/sys

["J. Hannken-Illjes" <hannken%eis.cs.tu-bs.de@localhost>]

> On 27. Oct 2017, at 11:59, Utkarsh Anand <utkarsh009%netbsd.org@localhost> wrote:
> 
> Module Name:	src
> Committed By:	utkarsh009
> Date:		Fri Oct 27 09:59:17 UTC 2017
> 
> Modified Files:
> 	src/sys/arch/x86/x86: intr.c
> 	src/sys/ddb: db_interface.h db_panic.c
> 	src/sys/kern: init_main.c subr_autoconf.c subr_disk.c subr_prf.c
> 	    vfs_subr.c vfs_wapbl.c
> 	src/sys/sys: systm.h
> 	src/sys/ufs/ufs: ufs_lookup.c
> 
> Log Message:
> [syzkaller] Attempted fix for https://github.com/google/syzkaller/issues/399
> 
> syzkaller was failing to extract constants because of the above mentioned issue so I had to redeclare printf in sys/sys/systm.h
> For more information on syzkaller, visit: https://github.com/google/syzkaller

This looks wrong: kernel printf != userland printf

If we were to go this route the return value should match userland,
either -1 on error or number of characters printed.  The other kernel
printf variants should be changed too.  It needs a kernel version bump.
--
J. Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig (Germany)