Re: [PATCH v2 07/29] ARM: add kexec_file_load system call number

[Russell King - ARM Linux admin <linux@xxxxxxxxxxxxxxx>]

On Fri, Jan 25, 2019 at 03:43:59PM +0000, Catalin Marinas wrote:
> On Fri, Jan 18, 2019 at 05:18:13PM +0100, Arnd Bergmann wrote:
> > diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
> > index 86de9eb34296..20ed7e026723 100644
> > --- a/arch/arm/tools/syscall.tbl
> > +++ b/arch/arm/tools/syscall.tbl
> > @@ -415,3 +415,4 @@
> >  398	common	rseq			sys_rseq
> >  399	common	io_pgetevents		sys_io_pgetevents
> >  400	common	migrate_pages		sys_migrate_pages
> > +401	common	kexec_file_load		sys_kexec_file_load
> 
> I presume on arm32 this would still return -ENOSYS.

Yes, I already checked.  If CONFIG_KEXEC_FILE is not set, then
kernel/kexec_file.c is not built, and we fall back to the stub
in kernel/sys_ni.c.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up