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Filename Latest commit message Latest commit date
Valentin Longchamp 6992c8995c net/ethernet/freescale: rework quiesce/activate for ucc_geth
[ Upstream commit 79dde73cf9bcf1dd317a2667f78b758e9fe139ed ]

ugeth_quiesce/activate are used to halt the controller when there is a
link change that requires to reconfigure the mac.

The previous implementation called netif_device_detach(). This however
causes the initial activation of the netdevice to fail precisely because
it's detached. For details, see [1].

A possible workaround was the revert of commit
net: linkwatch: add check for netdevice being present to linkwatch_do_dev
However, the check introduced in the above commit is correct and shall be
kept.

The netif_device_detach() is thus replaced with
netif_tx_stop_all_queues() that prevents any tranmission. This allows to
perform mac config change required by the link change, without detaching
the corresponding netdevice and thus not preventing its initial
activation.

[1] https://lists.openwall.net/netdev/2020/01/08/201

Signed-off-by: Valentin Longchamp <valentin@longchamp.me>
Acked-by: Matteo Ghidoni <matteo.ghidoni@ch.abb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-07 13:18:51 +02:00
arch s390/mm: fix set_huge_pte_at() for empty ptes 2020-06-07 13:18:51 +02:00
block Revert "block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT" 2020-06-03 08:21:27 +02:00
certs
crypto
Documentation
drivers net/ethernet/freescale: rework quiesce/activate for ucc_geth 2020-06-07 13:18:51 +02:00
fs io_uring: initialize ctx->sqo_wait earlier 2020-06-07 13:18:50 +02:00
include powerpc/xmon: Restrict when kernel is locked down 2020-06-07 13:18:49 +02:00
init
ipc
kernel kernel/relay.c: handle alloc_percpu returning NULL in relay_open 2020-06-07 13:18:47 +02:00
lib vsprintf: don't obfuscate NULL and error pointers 2020-05-27 17:46:43 +02:00
LICENSES
mm mm: Fix mremap not considering huge pmd devmap 2020-06-07 13:18:46 +02:00
net netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build 2020-06-03 08:21:39 +02:00
samples samples: bpf: Fix build error 2020-06-03 08:21:15 +02:00
scripts kbuild: Remove debug info from kallsyms linking 2020-05-27 17:46:44 +02:00
security evm: Fix RCU list related warnings 2020-06-07 13:18:50 +02:00
sound ASoC: intel - fix the card names 2020-06-07 13:18:49 +02:00
tools perf: Make perf able to build with latest libbfd 2020-06-03 08:21:39 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.44 2020-06-03 08:21:39 +02:00
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 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.