David Daney 1ef0910cfd MIPS: BPF: Quit clobbering callee saved registers in JIT code. ... If bpf_needs_clear_a() returns true, only actually clear it if it is ever used. If it is not used, we don't save and restore it, so the clearing has the nasty side effect of clobbering caller state. Also, don't emit stack pointer adjustment instructions if the adjustment amount is zero. Signed-off-by: David Daney <david.daney@cavium.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Steven J. Hill <steven.hill@cavium.com> Cc: linux-mips@linux-mips.org Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/15745/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2017-04-10 11:56:05 +02:00
..
bpf_jit_asm.S	MIPS: BPF: Fix load delay slots.	2015-10-02 09:48:57 +02:00
bpf_jit.c	MIPS: BPF: Quit clobbering callee saved registers in JIT code.	2017-04-10 11:56:05 +02:00
bpf_jit.h	MIPS: BPF: Introduce BPF ASM helpers	2015-06-21 21:54:25 +02:00
Makefile	MIPS: BPF: Introduce BPF ASM helpers	2015-06-21 21:54:25 +02:00