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Mark Rutland 870d16757b arm64: make _TIF_WORK_MASK bits contiguous 
We need the bits of _TIF_WORK_MASK to be contiguous in order to to use
this as an immediate argument to an AND instruction in entry.S.

We happened to change these bits in commits:

  b5a5a01d8e ("arm64: uaccess: remove addr_limit_user_check()")
  192caabd4d ("arm64: add support for TIF_NOTIFY_SIGNAL")

which each worked in isolation, but the merge resolution in commit:

  005b2a9dc8 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block")

happened to make the bits non-contiguous.

Fix this by moving TIF_NOTIFY_SIGNAL to be bit 6, which is contiguous
with the rest of _TIF_WORK_MASK.

Otherwise, we'll get a build-time failure as below:

   arch/arm64/kernel/entry.S: Assembler messages:
   arch/arm64/kernel/entry.S:733: Error: immediate out of range at operand 3 -- `and x2,x19,#((1<<1)|(1<<0)|(1<<2)|(1<<3)|(1<<4)|(1<<5)|(1<<7))'
   scripts/Makefile.build:360: recipe for target 'arch/arm64/kernel/entry.o' failed

Fixes: 005b2a9dc8 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
History 2020-12-16 14:08:47 -08:00
arch arm64: make _TIF_WORK_MASK bits contiguous 2020-12-16 14:08:47 -08:00
block SCSI misc on 20201216 2020-12-16 13:34:31 -08:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto crypto: aegis128 - avoid spurious references crypto_aegis128_update_simd 2020-12-04 18:16:53 +11:00
Documentation IOMMU updates for 5.11 2020-12-16 13:58:47 -08:00
drivers IOMMU updates for 5.11 2020-12-16 13:58:47 -08:00
fs for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
include IOMMU updates for 5.11 2020-12-16 13:58:47 -08:00
init for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
ipc Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
kernel Merge branch 'stable/for-linus-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb 2020-12-16 13:51:34 -08:00
lib for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm for-5.11/block-2020-12-14 2020-12-16 12:57:51 -08:00
net RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
samples samples/bpf: Fix possible hang in xdpsock with multiple threads 2020-12-10 23:13:43 +01:00
scripts gcc-plugins updates for v5.11-rc1 2020-12-16 11:17:27 -08:00
security Smack updates for Linux 5.11. One minor code clean-up and a 2020-12-16 11:11:58 -08:00
sound ACPI updates for 5.11-rc1 2020-12-15 16:39:06 -08:00
tools RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt kvm: x86/mmu: Support dirty logging for the TDP MMU 2020-10-23 03:42:13 -04:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
Makefile Linux 5.10 2020-12-13 14:41:30 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.