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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-02-12 13:34:24 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-02-13 14:41:23 -0800 |
| commit | 3d91c618aca403a7f7d2064272f528a97b849475 (patch) | |
| tree | 60e47c9585fc133a2e170d634a566bef8bbc6dc3 /include | |
| parent | 6363fc17c9f5952ce40c2fe779892511e371a359 (diff) | |
| download | linux-3d91c618aca403a7f7d2064272f528a97b849475.tar.gz linux-3d91c618aca403a7f7d2064272f528a97b849475.zip | |
bpf: rename bpf_reg_state->off to bpf_reg_state->delta
This field is now used only for linked scalar registers tracking.
Rename it to 'delta' to better describe it's purpose:
constant delta between "linked" scalars with the same ID.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260212-ptrs-off-migration-v2-4-00820e4d3438@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf_verifier.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index a97bdbf3a07b..c1e30096ea7b 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -40,7 +40,7 @@ struct bpf_reg_state { /* * Constant delta between "linked" scalars with the same ID. */ - s32 off; + s32 delta; union { /* valid when type == PTR_TO_PACKET */ int range; @@ -145,9 +145,9 @@ struct bpf_reg_state { * Upper bit of ID is used to remember relationship between "linked" * registers. Example: * r1 = r2; both will have r1->id == r2->id == N - * r1 += 10; r1->id == N | BPF_ADD_CONST and r1->off == 10 + * r1 += 10; r1->id == N | BPF_ADD_CONST and r1->delta == 10 * r3 = r2; both will have r3->id == r2->id == N - * w3 += 10; r3->id == N | BPF_ADD_CONST32 and r3->off == 10 + * w3 += 10; r3->id == N | BPF_ADD_CONST32 and r3->delta == 10 */ #define BPF_ADD_CONST64 (1U << 31) #define BPF_ADD_CONST32 (1U << 30) |