Russell King c5eae69257 ARM: net: bpf: improve 64-bit store implementation ...

Improve the 64-bit store implementation from:

  ldr     r6, [fp, #-8]
  str     r8, [r6]
  ldr     r6, [fp, #-8]
  mov     r7, #4
  add     r7, r6, r7
  str     r9, [r7]

to:

  ldr     r6, [fp, #-8]
  str     r8, [r6]
  str     r9, [r6, #4]

We leave the store as two separate STR instructions rather than using
STRD as the store may not be aligned, and STR can handle misalignment.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2018-07-13 15:26:42 +02:00

..

bpf_jit_32.c

ARM: net: bpf: improve 64-bit store implementation

2018-07-13 15:26:42 +02:00

bpf_jit_32.h

ARM: net: bpf: use double-word load/stores where available

2018-07-12 20:45:23 +02:00

Makefile

ARM: 7259/3: net: JIT compiler for packet filters

2012-03-24 09:38:56 +00:00