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Jiayuan Chen bac3bc3550 selftests/bpf: Fix incorrect array size calculation 
[ Upstream commit f85981327a ]

The loop in bench_sockmap_prog_destroy() has two issues:

1. Using 'sizeof(ctx.fds)' as the loop bound results in the number of
   bytes, not the number of file descriptors, causing the loop to iterate
   far more times than intended.

2. The condition 'ctx.fds[0] > 0' incorrectly checks only the first fd for
   all iterations, potentially leaving file descriptors unclosed. Change
   it to 'ctx.fds[i] > 0' to check each fd properly.

These fixes ensure correct cleanup of all file descriptors when the
benchmark exits.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250909124721.191555-1-jiayuan.chen@linux.dev

Closes: https://lore.kernel.org/bpf/aLqfWuRR9R_KTe5e@stanley.mountain/
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-11-13 15:36:49 -05:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.