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Eric Dumazet e5b670e543 net: remove obsolete WARN_ON(refcount_read(&sk->sk_refcnt) == 1)
sk->sk_refcnt has been converted to refcount_t in 2017.

__sock_put(sk) being refcount_dec(&sk->sk_refcnt), it will complain
loudly if the current refcnt is 1 (or less) in a non racy way.

We can remove four WARN_ON() in favor of the generic refcount_dec()
check.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Xuanqiang Luo<luoxuanqiang@kylinos.cn>
Link: https://patch.msgid.link/20251014140605.2982703-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-10-15 17:18:38 -07:00
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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.