diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-04 01:08:22 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-05-03 16:49:20 -0700 |
| commit | e1cf4befa297b149149f633eff746593e400c030 (patch) | |
| tree | 87403e02c6c2db7888e0fc29be2e2b7847e7aae8 /arch/s390/net/bpf_jit.h | |
| parent | dbf44daf7c88bb0b378e3cb9dc101ae0c5b33832 (diff) | |
bpf, s390x: remove ld_abs/ld_ind
Since LD_ABS/LD_IND instructions are now removed from the core and
reimplemented through a combination of inlined BPF instructions and
a slow-path helper, we can get rid of the complexity from s390x JIT.
Tested on s390x instance on LinuxONE.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'arch/s390/net/bpf_jit.h')
| -rw-r--r-- | arch/s390/net/bpf_jit.h | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/arch/s390/net/bpf_jit.h b/arch/s390/net/bpf_jit.h index 5e1e5133132d..7822ea92e54a 100644 --- a/arch/s390/net/bpf_jit.h +++ b/arch/s390/net/bpf_jit.h @@ -16,9 +16,6 @@ #include <linux/filter.h> #include <linux/types.h> -extern u8 sk_load_word_pos[], sk_load_half_pos[], sk_load_byte_pos[]; -extern u8 sk_load_word[], sk_load_half[], sk_load_byte[]; - #endif /* __ASSEMBLY__ */ /* @@ -36,15 +33,6 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[]; * | | | * | BPF stack | | * | | | - * +---------------+ | - * | 8 byte skbp | | - * R15+176 -> +---------------+ | - * | 8 byte hlen | | - * R15+168 -> +---------------+ | - * | 4 byte align | | - * +---------------+ | - * | 4 byte temp | | - * | for bpf_jit.S | | * R15+160 -> +---------------+ | * | new backchain | | * R15+152 -> +---------------+ | @@ -57,17 +45,11 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[]; * The stack size used by the BPF program ("BPF stack" above) is passed * via "aux->stack_depth". */ -#define STK_SPACE_ADD (8 + 8 + 4 + 4 + 160) +#define STK_SPACE_ADD (160) #define STK_160_UNUSED (160 - 12 * 8) #define STK_OFF (STK_SPACE_ADD - STK_160_UNUSED) -#define STK_OFF_TMP 160 /* Offset of tmp buffer on stack */ -#define STK_OFF_HLEN 168 /* Offset of SKB header length on stack */ -#define STK_OFF_SKBP 176 /* Offset of SKB pointer on stack */ #define STK_OFF_R6 (160 - 11 * 8) /* Offset of r6 on stack */ #define STK_OFF_TCCNT (160 - 12 * 8) /* Offset of tail_call_cnt on stack */ -/* Offset to skip condition code check */ -#define OFF_OK 4 - #endif /* __ARCH_S390_NET_BPF_JIT_H */ |