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Jakub Kicinski b38e858ab0 netdev: fix repeated netlink messages in queue stats [ Upstream commit `ecc391a541` ] The context is supposed to record the next queue to dump, not last dumped. If the dump doesn't fit we will restart from the already-dumped queue, duplicating the message. Before this fix and with the selftest improvements later in this series we see: # ./run_kselftest.sh -t drivers/net:stats.py timeout set to 45 selftests: drivers/net: stats.py KTAP version 1 1..5 ok 1 stats.check_pause ok 2 stats.check_fec ok 3 stats.pkt_byte_sum # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 125, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), len(set(queues[qtype])), # Check failed 45 != 44 repeated queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 127, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1, # Check failed 45 != 44 missing queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 125, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), len(set(queues[qtype])), # Check failed 45 != 44 repeated queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 127, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1, # Check failed 45 != 44 missing queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 125, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), len(set(queues[qtype])), # Check failed 103 != 100 repeated queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 127, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1, # Check failed 103 != 100 missing queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 125, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), len(set(queues[qtype])), # Check failed 102 != 100 repeated queue keys # Check\| At /root/ksft-net-drv/drivers/net/./stats.py, line 127, in qstat_by_ifindex: # Check\| ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1, # Check failed 102 != 100 missing queue keys not ok 4 stats.qstat_by_ifindex ok 5 stats.check_down # Totals: pass:4 fail:1 xfail:0 xpass:0 skip:0 error:0 With the fix: # ./ksft-net-drv/run_kselftest.sh -t drivers/net:stats.py timeout set to 45 selftests: drivers/net: stats.py KTAP version 1 1..5 ok 1 stats.check_pause ok 2 stats.check_fec ok 3 stats.pkt_byte_sum ok 4 stats.qstat_by_ifindex ok 5 stats.check_down # Totals: pass:5 fail:0 xfail:0 xpass:0 skip:0 error:0 Fixes: `ab63a2387c` ("netdev: add per-queue statistics") Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20241213152244.3080955-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-12-27 14:02:04 +01:00
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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.