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| author | Ingo Molnar <mingo@kernel.org> | 2019-12-17 12:28:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-17 12:28:02 +0100 |
| commit | 57e04eeda515ee979fec3bc3d64c408feae18acc (patch) | |
| tree | f18d4d0885211ee7bd543a2363c035a290037556 /kernel/bpf | |
| parent | 0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff) | |
| parent | 58b3bafff8257c6946df5d6aeb215b8ac839ed2a (diff) | |
| download | cachepc-linux-57e04eeda515ee979fec3bc3d64c408feae18acc.tar.gz cachepc-linux-57e04eeda515ee979fec3bc3d64c408feae18acc.zip | |
Merge tag 'perf-urgent-for-mingo-5.5-20191216' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes:
perf top:
Arnaldo Carvalho de Melo:
- Do not bail out when perf_env__read_cpuid() returns ENOSYS, which
has been reported happening on aarch64.
perf metricgroup:
Kajol Jain:
- Fix printing event names of metric group with multiple events
vendor events:
x86:
Ravi Bangoria:
- Fix Kernel_Utilization metric.
s390:
Ed Maste:
- Fix counter long description for DTLB1_GPAGE_WRITES and L1D_RO_EXCL_WRITES.
perf header:
Michael Petlan:
- Fix false warning when there are no duplicate cache entries
libtraceevent:
Sudip Mukherjee:
- Allow custom libdir path
API headers:
Arnaldo Carvalho de Melo:
- Sync linux/kvm.h with the kernel sources.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/btf.c | 5 | ||||
| -rw-r--r-- | kernel/bpf/stackmap.c | 2 | ||||
| -rw-r--r-- | kernel/bpf/verifier.c | 5 |
3 files changed, 9 insertions, 3 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 40efde5eedcb..7d40da240891 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -3463,6 +3463,7 @@ enum { __ctx_convert##_id, #include <linux/bpf_types.h> #undef BPF_PROG_TYPE + __ctx_convert_unused, /* to avoid empty enum in extreme .config */ }; static u8 bpf_ctx_convert_map[] = { #define BPF_PROG_TYPE(_id, _name, prog_ctx_type, kern_ctx_type) \ @@ -3976,8 +3977,10 @@ static int __get_type_size(struct btf *btf, u32 btf_id, t = btf_type_by_id(btf, btf_id); while (t && btf_type_is_modifier(t)) t = btf_type_by_id(btf, t->type); - if (!t) + if (!t) { + *bad_type = btf->types[0]; return -EINVAL; + } if (btf_type_is_ptr(t)) /* kernel size of pointer. Not BPF's size of pointer*/ return sizeof(void *); diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index caca752ee5e6..3f958b90d914 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -289,7 +289,7 @@ static void stack_map_get_build_id_offset(struct bpf_stack_build_id *id_offs, if (irqs_disabled()) { work = this_cpu_ptr(&up_read_work); - if (work->irq_work.flags & IRQ_WORK_BUSY) + if (atomic_read(&work->irq_work.flags) & IRQ_WORK_BUSY) /* cannot queue more up_read, fallback */ irq_work_busy = true; } diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index a0482e1c4a77..034ef81f935b 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -9636,7 +9636,10 @@ static int check_attach_btf_id(struct bpf_verifier_env *env) ret = -EINVAL; goto out; } - addr = (long) tgt_prog->aux->func[subprog]->bpf_func; + if (subprog == 0) + addr = (long) tgt_prog->bpf_func; + else + addr = (long) tgt_prog->aux->func[subprog]->bpf_func; } else { addr = kallsyms_lookup_name(tname); if (!addr) { |