Re: [PATCH net-next 01/13] ARM: net: bpf: enumerate the JIT scratch stack layout

2018-07-10 Thread Russell King - ARM Linux
On Tue, Jul 10, 2018 at 08:30:04PM +0200, Daniel Borkmann wrote: > Hi Russell, > > thanks a lot for your work on the arm32 JIT! > > On 07/10/2018 02:36 PM, Russell King wrote: > > Enumerate the contents of the JIT scratch stack layout used for storing > > some of the JITs 64-bit registers, tail c

Re: [PATCH net-next 01/13] ARM: net: bpf: enumerate the JIT scratch stack layout

2018-07-10 Thread Daniel Borkmann
Hi Russell, thanks a lot for your work on the arm32 JIT! On 07/10/2018 02:36 PM, Russell King wrote: > Enumerate the contents of the JIT scratch stack layout used for storing > some of the JITs 64-bit registers, tail call counter and AX register. > > XXX: what about the skb_copy_bits buffer - th

[PATCH net-next 01/13] ARM: net: bpf: enumerate the JIT scratch stack layout

2018-07-10 Thread Russell King
Enumerate the contents of the JIT scratch stack layout used for storing some of the JITs 64-bit registers, tail call counter and AX register. XXX: what about the skb_copy_bits buffer - this appears to overlap with the first word of the JITs accessible stack. Signed-off-by: Russell King --- arch