Andrii Nakryiko e5c5cb47a9 libbpf: Fix btf_dump's packed struct determination ... [ Upstream commit 4fb877aaa1 ] Fix bug in btf_dump's logic of determining if a given struct type is packed or not. The notion of "natural alignment" is not needed and is even harmful in this case, so drop it altogether. The biggest difference in btf_is_struct_packed() compared to its original implementation is that we don't really use btf__align_of() to determine overall alignment of a struct type (because it could be 1 for both packed and non-packed struct, depending on specifci field definitions), and just use field's actual alignment to calculate whether any field is requiring packing or struct's size overall necessitates packing. Add two simple test cases that demonstrate the difference this change would make. Fixes: ea2ce1ba99 ("libbpf: Fix BTF-to-C converter's padding logic") Reported-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/bpf/20221215183605.4149488-1-andrii@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-06 12:10:58 +02:00
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bootconfig	bootconfig: Fix testcase to increase max node	2023-03-30 12:49:07 +02:00
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iio	tools/iio/iio_utils:fix memory leak	2023-03-11 13:55:35 +01:00
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lib	libbpf: Fix btf_dump's packed struct determination	2023-04-06 12:10:58 +02:00
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perf	perf stat: Fix counting when initial delay configured	2023-03-17 08:50:24 +01:00
power	tools/power turbostat: fix decoding of HWP_STATUS	2023-04-06 12:10:41 +02:00
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testing	libbpf: Fix btf_dump's packed struct determination	2023-04-06 12:10:58 +02:00
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