[SRU][N:linux][PATCH v2 1/5] powerpc64/bpf: jit support for 32bit offset jmp instruction

[Andrei Gherzan]

BugLink: https://bugs.launchpad.net/bugs/2072994

Add jit support for JMP32_JA instruction. Tested using test_bpf module.

Signed-off-by: Artem Savkov <asavkov at redhat.com>
Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
Link: https://msgid.link/20240517075650.248801-2-asavkov@redhat.com
(cherry picked from commit 3c086ce222cefcf16d412faa10d456161d076796)
Signed-off-by: Andrei Gherzan <andrei.gherzan at canonical.com>
---
 arch/powerpc/net/bpf_jit_comp64.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 8a8a3101ce72..3b2b5376569d 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -1029,6 +1029,9 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code
 		case BPF_JMP | BPF_JA:
 			PPC_JMP(addrs[i + 1 + off]);
 			break;
+		case BPF_JMP32 | BPF_JA:
+			PPC_JMP(addrs[i + 1 + imm]);
+			break;
 
 		case BPF_JMP | BPF_JGT | BPF_K:
 		case BPF_JMP | BPF_JGT | BPF_X:
-- 
2.43.0