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Paul Burton c042be02d7
MIPS: bitops: Use BIT_WORD() & BITS_PER_LONG
Rather than using custom SZLONG_LOG & SZLONG_MASK macros to shift & mask
a bit index to form word & bit offsets respectively, make use of the
standard BIT_WORD() & BITS_PER_LONG macros for the same purpose.

volatile is added to the definition of pointers to the long-sized word
we'll operate on, in order to prevent the compiler complaining that we
cast away the volatile qualifier of the addr argument. This should have
no effect on generated code, which in the LL/SC case is inline asm
anyway & in the non-LLSC case access is constrained by compiler barriers
provided by raw_local_irq_{save,restore}().

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-kernel@vger.kernel.org
2019-10-07 09:42:55 -07:00
arch MIPS: bitops: Use BIT_WORD() & BITS_PER_LONG 2019-10-07 09:42:55 -07:00
block
certs
crypto
Documentation dt-bindings: mips: Add gardena vendor prefix and board description 2019-10-07 09:41:27 -07:00
drivers ARM: SoC fixes 2019-10-05 17:18:43 -07:00
fs elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings 2019-10-06 13:53:27 -07:00
include
init
ipc
kernel dma-mapping regression fix for 5.4-rc2 2019-10-06 11:10:15 -07:00
lib
LICENSES
mm
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samples
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usr
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.get_maintainer.ignore
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Makefile Linux 5.4-rc2 2019-10-06 14:27:30 -07:00
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.