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Yoshihiro Shimoda c4f922e86c net: renesas: rswitch: Add spin lock protection for irq {un}mask
Add spin lock protection for irq {un}mask registers' control.

After napi_complete_done() and this protection were applied,
a lot of redundant interrupts no longer occur.

For example: when "iperf3 -c <ipaddr> -R" on R-Car S4-8 Spider
 Before the patches are applied: about 800,000 times happened
 After the patches were applied: about 100,000 times happened

Fixes: 3590918b5d ("net: ethernet: renesas: Add support for "Ethernet Switch"")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-09-14 10:26:41 +02:00
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drivers net: renesas: rswitch: Add spin lock protection for irq {un}mask 2023-09-14 10:26:41 +02:00
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include tcp: Fix bind() regression for v4-mapped-v6 wildcard address. 2023-09-13 07:18:04 +01:00
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net tcp: Fix bind() regression for v4-mapped-v6 non-wildcard address. 2023-09-13 07:18:04 +01:00
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tools selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c. 2023-09-13 07:18:04 +01:00
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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 Restructured Text 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.