diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-07-20 15:05:03 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-07-20 15:52:55 -0700 |
| commit | 59be3baa8dff271d48500e009622318badfc7140 (patch) | |
| tree | d7fde1af4197df9ece8ca26fb492051df2ef80f1 /arch/arm64 | |
| parent | b44693495af8f309b8ddec4b30833085d1c2d0c4 (diff) | |
| parent | 57f1f9dd3abea322173ea75a15887ccf14bbbe51 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 145b540ec34f..ec2174838f2a 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -322,7 +322,13 @@ static int build_prologue(struct jit_ctx *ctx, bool ebpf_from_cbpf) * */ - emit_bti(A64_BTI_C, ctx); + /* bpf function may be invoked by 3 instruction types: + * 1. bl, attached via freplace to bpf prog via short jump + * 2. br, attached via freplace to bpf prog via long jump + * 3. blr, working as a function pointer, used by emit_call. + * So BTI_JC should used here to support both br and blr. + */ + emit_bti(A64_BTI_JC, ctx); emit(A64_MOV(1, A64_R(9), A64_LR), ctx); emit(A64_NOP, ctx); |