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Zong Li 4df0fc2940 net: macb: ensure the device is available before accessing GEMGXL control registers 
[ Upstream commit 5eff1461a6 ]

If runtime power menagement is enabled, the gigabit ethernet PLL would
be disabled after macb_probe(). During this period of time, the system
would hang up if we try to access GEMGXL control registers.

We can't put runtime_pm_get/runtime_pm_put/ there due to the issue of
sleep inside atomic section (7fa2955ff7 ("sh_eth: Fix sleeping
function called from invalid context"). Add netif_running checking to
ensure the device is available before accessing GEMGXL device.

Changed in v2:
 - Use netif_running instead of its own flag

Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-06-16 11:53:01 +02:00
arch KVM: SVM: Truncate GPR value for DR and CR accesses in !64-bit mode 2021-06-10 12:43:53 +02:00
block blk-mq: Swap two calls in blk_mq_exit_queue() 2021-05-22 10:57:40 +02:00
certs certs: Fix blacklist flag type confusion 2021-03-03 18:22:46 +01:00
crypto crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-22 10:57:16 +02:00
Documentation tweewide: Fix most Shebang lines 2021-06-03 08:36:11 +02:00
drivers net: macb: ensure the device is available before accessing GEMGXL control registers 2021-06-16 11:53:01 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs proc: Track /proc/$pid/attr/ opener mm_struct 2021-06-16 11:53:00 +02:00
include bpf: Fix leakage of uninitialized bpf stack under speculation 2021-06-10 12:43:53 +02:00
init pid: take a reference when initializing cad_pid 2021-06-10 12:43:51 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:17:07 +02:00
kernel wq: handle VM suspension in stall detection 2021-06-16 11:53:01 +02:00
lib lib: stackdepot: turn depot_lock spinlock to raw_spinlock 2021-05-22 10:57:43 +02:00
mm mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY 2021-06-10 12:43:51 +02:00
net netlink: disable IRQs for netlink_lock_table() 2021-06-16 11:53:01 +02:00
samples samples/bpf: Fix broken tracex1 due to kprobe argument change 2021-05-22 10:57:37 +02:00
scripts scripts: switch explicitly to Python 3 2021-06-03 08:36:11 +02:00
security security: commoncap: fix -Wstringop-overread warning 2021-05-22 10:57:21 +02:00
sound ASoC: sti-sas: add missing MODULE_DEVICE_TABLE 2021-06-16 11:53:00 +02:00
tools selftests/bpf: make 'dubious pointer arithmetic' test useful 2021-06-10 12:43:53 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: arm64: Fix exclusive limit for IPA size 2021-03-17 16:34:35 +01:00
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MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 16:36:12 +01:00
Makefile Linux 4.14.236 2021-06-10 12:43:54 +02:00
README

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.