Alan Maguire d003ff1f0a libbpf: Add identical pointer detection to btf_dedup_is_equiv() ... [ Upstream commit 8e64c387c9 ] Recently as a side-effect of commit ac053946f5 ("compiler.h: introduce TYPEOF_UNQUAL() macro") issues were observed in deduplication between modules and kernel BTF such that a large number of kernel types were not deduplicated so were found in module BTF (task_struct, bpf_prog etc). The root cause appeared to be a failure to dedup struct types, specifically those with members that were pointers with __percpu annotations. The issue in dedup is at the point that we are deduplicating structures, we have not yet deduplicated reference types like pointers. If multiple copies of a pointer point at the same (deduplicated) integer as in this case, we do not see them as identical. Special handling already exists to deal with structures and arrays, so add pointer handling here too. Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250429161042.2069678-1-alan.maguire@oracle.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-06-27 11:11:32 +01:00
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accounting
arch	x86/insn: Fix opcode map (!REX2) superscript tags	2025-06-19 15:31:28 +02:00
bootconfig
bpf	tools/resolve_btfids: Fix build when cross compiling kernel with clang.	2025-06-19 15:32:33 +02:00
build	tools/build: Don't pass test log files to linker	2025-05-29 11:02:08 +02:00
certs
cgroup
counter
crypto
debugging
firewire
firmware
gpio
hv
iio
include	bpf: Allow pre-ordering for bpf cgroup progs	2025-05-29 11:02:17 +02:00
kvm/kvm_stat
laptop
leds
lib	libbpf: Add identical pointer detection to btf_dedup_is_equiv()	2025-06-27 11:11:32 +01:00
memory-model
mm
net	tools: ynl-gen: validate 0 len strings from kernel	2025-05-29 11:03:12 +02:00
objtool	objtool/rust: relax slice condition to cover more noreturn Rust functions	2025-06-19 15:32:33 +02:00
pci
pcmcia
perf	perf callchain: Always populate the addr_location map when adding IP	2025-06-19 15:32:08 +02:00
power	tools/power turbostat: Fix AMD package-energy reporting	2025-06-19 15:32:21 +02:00
rcu
sched_ext
scripts
sound
spi
testing	selftests: net: build net/lib dependency in all target	2025-06-19 15:32:18 +02:00
thermal
time
tracing
usb
verification
virtio
wmi
workqueue
writeback
Makefile