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Filename Latest commit message Latest commit date
Thomas Gleixner c94a31c192 USB: sisusbvga: Make console support depend on BROKEN 
commit 862ee699fefe1e6d6f2c1518395f0b999b8beb15 upstream.

The console part of sisusbvga is broken vs. printk(). It uses in_atomic()
to detect contexts in which it cannot sleep despite the big fat comment in
preempt.h which says: Do not use in_atomic() in driver code.

in_atomic() does not work on kernels with CONFIG_PREEMPT_COUNT=n which
means that spin/rw_lock held regions are not detected by it.

There is no way to make this work by handing context information through to
the driver and this only can be solved once the core printk infrastructure
supports sleepable console drivers.

Make it depend on BROKEN for now.

Fixes: 1bbb4f2035 ("[PATCH] USB: sisusb[vga] update")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201019101109.603244207@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-21 13:27:06 +01:00
arch x86/apic/vector: Fix ordering in vector assignment 2020-12-16 10:56:59 +01:00
block blk-cgroup: Pre-allocate tree node on blkg_conf_prep 2020-11-10 12:37:30 +01:00
certs
crypto
Documentation USB: UAS: introduce a quirk to set no_write_same 2020-12-21 13:27:06 +01:00
drivers USB: sisusbvga: Make console support depend on BROKEN 2020-12-21 13:27:06 +01:00
fs proc: use untagged_addr() for pagemap_read addresses 2020-12-16 10:56:58 +01:00
include USB: UAS: introduce a quirk to set no_write_same 2020-12-21 13:27:06 +01:00
init
ipc
kernel tracing: Fix userstacktrace option for instances 2020-12-11 13:23:32 +01:00
lib lib/syscall: fix syscall registers retrieval on 32-bit platforms 2020-12-11 13:23:32 +01:00
LICENSES
mm mm/zsmalloc.c: drop ZSMALLOC_PGTABLE_MAPPING 2020-12-16 10:56:59 +01:00
net tcp: fix cwnd-limited bug for TSO deferral where we send nothing 2020-12-21 13:27:04 +01:00
samples
scripts
security ima: extend boot_aggregate with kernel measurements 2020-12-08 10:40:24 +01:00
sound ALSA: usb-audio: Fix control 'access overflow' errors from chmap 2020-12-21 13:27:05 +01:00
tools ktest.pl: If size of log is too big to email, email error message 2020-12-21 13:27:05 +01:00
usr
virt KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace 2020-12-02 08:49:46 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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MAINTAINERS
Makefile Linux 5.4.84 2020-12-16 10:56:59 +01:00
README

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.