diff options
| author | Mark Brown <broonie@kernel.org> | 2025-01-07 23:28:07 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-01-07 23:28:07 +0000 |
| commit | d406b354df909155ff0122acf80f3bc7410fa27e (patch) | |
| tree | 0cd68849c0c36fcf9e48ba71a9c0464b65297082 /kernel/bpf/core.c | |
| parent | eb708cd631a8dca17ff004ccc39bbeb096c1db22 (diff) | |
| parent | 5bc493bf0c37c157bf2eb364e55a1c6f8bc43a69 (diff) | |
Expand SoundWire MBQ register map support
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:
The current SDCA MBQ (Multi-Byte Quantities) register map only
supports 16-bit types, add support for more sizes and then update
the rt722 driver to use the new support. We also add support for
the deferring feature of MBQs to allow hardware to indicate it is
not currently ready to service a read/write.
Afraid I don't have hardware to test the rt722 change so it is
only build tested, but I thought it good to include a change to
demonstrate the new features in use.
Diffstat (limited to 'kernel/bpf/core.c')
| -rw-r--r-- | kernel/bpf/core.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index a2327c4fdc8b..da729cbbaeb9 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -539,6 +539,8 @@ struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off, int bpf_remove_insns(struct bpf_prog *prog, u32 off, u32 cnt) { + int err; + /* Branch offsets can't overflow when program is shrinking, no need * to call bpf_adj_branches(..., true) here */ @@ -546,7 +548,9 @@ int bpf_remove_insns(struct bpf_prog *prog, u32 off, u32 cnt) sizeof(struct bpf_insn) * (prog->len - off - cnt)); prog->len -= cnt; - return WARN_ON_ONCE(bpf_adj_branches(prog, off, off + cnt, off, false)); + err = bpf_adj_branches(prog, off, off + cnt, off, false); + WARN_ON_ONCE(err); + return err; } static void bpf_prog_kallsyms_del_subprogs(struct bpf_prog *fp) @@ -2936,7 +2940,7 @@ void __weak bpf_jit_compile(struct bpf_prog *prog) { } -bool __weak bpf_helper_changes_pkt_data(void *func) +bool __weak bpf_helper_changes_pkt_data(enum bpf_func_id func_id) { return false; } |