Commit 73ae3c04 authored by Daniel Borkmann's avatar Daniel Borkmann Committed by Alexei Starovoitov
Browse files

bpf, arm: remove obsolete exception handling from div/mod



Since we've changed div/mod exception handling for src_reg in
eBPF verifier itself, remove the leftovers from arm32 JIT.
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Cc: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent e472d5d8
......@@ -363,15 +363,7 @@ static inline int epilogue_offset(const struct jit_ctx *ctx)
static inline void emit_udivmod(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx, u8 op)
{
const u8 *tmp = bpf2a32[TMP_REG_1];
s32 jmp_offset;
/* checks if divisor is zero or not. If it is, then
* exit directly.
*/
emit(ARM_CMP_I(rn, 0), ctx);
_emit(ARM_COND_EQ, ARM_MOV_I(ARM_R0, 0), ctx);
jmp_offset = epilogue_offset(ctx);
_emit(ARM_COND_EQ, ARM_B(jmp_offset), ctx);
#if __LINUX_ARM_ARCH__ == 7
if (elf_hwcap & HWCAP_IDIVA) {
if (op == BPF_DIV)
......
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