Re: [PATCH v4] libbpf: workaround -Wmaybe-uninitialized false positive

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@xxxxxxxxxx>:

On Tue, 13 Aug 2024 20:49:06 +0100 you wrote:
> In `elf_close`, we get this with GCC 15 -O3 (at least):
> ```
> In function ‘elf_close’,
>     inlined from ‘elf_close’ at elf.c:53:6,
>     inlined from ‘elf_find_func_offset_from_file’ at elf.c:384:2:
> elf.c:57:9: warning: ‘elf_fd.elf’ may be used uninitialized [-Wmaybe-uninitialized]
>    57 |         elf_end(elf_fd->elf);
>       |         ^~~~~~~~~~~~~~~~~~~~
> elf.c: In function ‘elf_find_func_offset_from_file’:
> elf.c:377:23: note: ‘elf_fd.elf’ was declared here
>   377 |         struct elf_fd elf_fd;
>       |                       ^~~~~~
> In function ‘elf_close’,
>     inlined from ‘elf_close’ at elf.c:53:6,
>     inlined from ‘elf_find_func_offset_from_file’ at elf.c:384:2:
> elf.c:58:9: warning: ‘elf_fd.fd’ may be used uninitialized [-Wmaybe-uninitialized]
>    58 |         close(elf_fd->fd);
>       |         ^~~~~~~~~~~~~~~~~
> elf.c: In function ‘elf_find_func_offset_from_file’:
> elf.c:377:23: note: ‘elf_fd.fd’ was declared here
>   377 |         struct elf_fd elf_fd;
>       |                       ^~~~~~
> ```
> 
> [...]

Here is the summary with links:
  - [v4] libbpf: workaround -Wmaybe-uninitialized false positive
    https://git.kernel.org/bpf/bpf-next/c/fab45b962749

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