diff options
Diffstat (limited to 'arch/s390/net/bpf_jit.h')
| -rw-r--r-- | arch/s390/net/bpf_jit.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/net/bpf_jit.h b/arch/s390/net/bpf_jit.h index fda605dbc1b4..5e1e5133132d 100644 --- a/arch/s390/net/bpf_jit.h +++ b/arch/s390/net/bpf_jit.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * BPF Jit compiler defines * @@ -52,10 +53,13 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[]; * * We get 160 bytes stack space from calling function, but only use * 12 * 8 byte for old backchain, r15..r6, and tail_call_cnt. + * + * The stack size used by the BPF program ("BPF stack" above) is passed + * via "aux->stack_depth". */ -#define STK_SPACE (MAX_BPF_STACK + 8 + 8 + 4 + 4 + 160) +#define STK_SPACE_ADD (8 + 8 + 4 + 4 + 160) #define STK_160_UNUSED (160 - 12 * 8) -#define STK_OFF (STK_SPACE - STK_160_UNUSED) +#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 */ |