Re: [PATCH 3/6 v3] riscv: Fix syscall_get_arguments() and syscall_set_arguments()

[Palmer Dabbelt]

On Thu, 04 Apr 2019 07:26:53 PDT (-0700), rostedt@xxxxxxxxxxx wrote:
> On Thu, 4 Apr 2019 17:02:10 +0300
> "Dmitry V. Levin" <ldv@xxxxxxxxxxxx> wrote:
>
> > On Mon, Apr 01, 2019 at 09:41:07AM -0400, Steven Rostedt wrote:
> > > From: "Dmitry V. Levin" <ldv@xxxxxxxxxxxx>
> > >
> > > RISC-V syscall arguments are located in orig_a0,a1..a5 fields
> > > of struct pt_regs.
> > >
> > > Due to an off-by-one bug and a bug in pointer arithmetic
> > > syscall_get_arguments() was reading s3..s7 fields instead of a1..a5.
> > > Likewise, syscall_set_arguments() was writing s3..s7 fields
> > > instead of a1..a5.
> > >
> > > Link: http://lkml.kernel.org/r/20190329171221.GA32456@xxxxxxxxxxxx
> > >
> > > Fixes: e2c0cdfba7f69 ("RISC-V: User-facing API")
> > > Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> > > Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> > > Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
> > > Cc: Will Drewry <wad@xxxxxxxxxxxx>
> > > Cc: Palmer Dabbelt <palmer@xxxxxxxxxx>
> > > Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
> > > Cc: linux-riscv@xxxxxxxxxxxxxxxxxxx
> > > Cc: stable@xxxxxxxxxxxxxxx # v4.15+
> > > Signed-off-by: Dmitry V. Levin <ldv@xxxxxxxxxxxx>
> > > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
> >
> > According to
> > https://lore.kernel.org/lkml/mhng-8e9b547b-7fe3-43d2-9dea-b217de923605@palmer-si-x1c4/
> > the following tag could be added to this patch:
> >
> > Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxx>
>
> That link isn't actually an ack. Palmer, you OK if I add it?

Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxx> (for the RISC-V parts)

Thanks!