linux.git/arch/arm/include/asm/cacheflush.h, branch v4.19

docs: Fix some broken references

2018-06-15T21:10:01+00:00

As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai 
Acked-by: Masami Hiramatsu 
Acked-by: Stephen Boyd 
Acked-by: Charles Keepax 
Acked-by: Mathieu Poirier 
Reviewed-by: Coly Li 
Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Jonathan Corbet

page cache: use xa_lock

2018-04-11T17:28:39+00:00

Remove the address_space ->tree_lock and use the xa_lock newly added to
the radix_tree_root.  Rename the address_space ->page_tree to ->i_pages,
since we don't really care that it's a tree.

[willy@infradead.org: fix nds32, fs/dax.c]
  Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org
Signed-off-by: Matthew Wilcox 
Acked-by: Jeff Layton 
Cc: Darrick J. Wong 
Cc: Dave Chinner 
Cc: Ryusuke Konishi 
Cc: Will Deacon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

randstruct: opt-out externally exposed function pointer structs

2017-06-30T19:00:52+00:00

Some function pointer structures are used externally to the kernel, like
the paravirt structures. These should never be randomized, so mark them
as such, in preparation for enabling randstruct's automatic selection
of all-function-pointer structures.

These markings are verbatim from Brad Spengler/PaX Team's code in the
last public patch of grsecurity/PaX based on my understanding of the
code. Changes or omissions from the original code are mine and don't
reflect the original grsecurity/PaX code.

Signed-off-by: Kees Cook

treewide: decouple cacheflush.h and set_memory.h

2017-05-09T00:15:14+00:00

Now that all call sites, completely decouple cacheflush.h and
set_memory.h

[sfr@canb.auug.org.au: kprobes/x86: merge fix for set_memory.h decoupling]
  Link: http://lkml.kernel.org/r/20170418180903.10300fd3@canb.auug.org.au
Link: http://lkml.kernel.org/r/1488920133-27229-17-git-send-email-labbott@redhat.com
Signed-off-by: Laura Abbott 
Signed-off-by: Stephen Rothwell 
Acked-by: Catalin Marinas 
Acked-by: Mark Rutland 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: move set_memory_* functions away from cacheflush.h

2017-05-09T00:15:13+00:00

Patch series "set_memory_* functions header refactor", v3.

The set_memory_* APIs came out of a desire to have a better way to
change memory attributes.  Many of these attributes were linked to cache
functionality so the prototypes were put in cacheflush.h.  These days,
the APIs have grown and have a much wider use than just cache APIs.  To
support this growth, split off set_memory_* and friends into a separate
header file to avoid growing cacheflush.h for APIs that have nothing to
do with caches.

Link: http://lkml.kernel.org/r/1488920133-27229-2-git-send-email-labbott@redhat.com
Signed-off-by: Laura Abbott 
Acked-by: Russell King 
Acked-by: Mark Rutland 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX

2017-02-07T20:32:52+00:00

Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the names to CONFIG_STRICT_KERNEL_RWX and
CONFIG_STRICT_MODULE_RWX to better describe what these options do.

Signed-off-by: Laura Abbott 
Acked-by: Jessica Yu 
Signed-off-by: Kees Cook

ARM: 8601/1: Remove unused secure_flush_area API

2016-08-26T14:11:17+00:00

This patch removes the unused secure_flush_area function.  The only
consumer of this function has moved to using the streaming DMA APIs.

Signed-off-by: Andy Gross 
Signed-off-by: Russell King

asm-generic: Consolidate mark_rodata_ro()

2016-02-22T07:51:37+00:00

Instead of defining mark_rodata_ro() in each architecture, consolidate it.

Signed-off-by: Kees Cook 
Acked-by: Will Deacon 
Cc: Andrew Morton 
Cc: Andy Gross 
Cc: Andy Lutomirski 
Cc: Ard Biesheuvel 
Cc: Arnd Bergmann 
Cc: Ashok Kumar 
Cc: Borislav Petkov 
Cc: Borislav Petkov 
Cc: Brian Gerst 
Cc: Catalin Marinas 
Cc: Dan Williams 
Cc: David Brown 
Cc: David Hildenbrand 
Cc: Denys Vlasenko 
Cc: Emese Revfy 
Cc: H. Peter Anvin 
Cc: Helge Deller 
Cc: James E.J. Bottomley 
Cc: Linus Torvalds 
Cc: Luis R. Rodriguez 
Cc: Marc Zyngier 
Cc: Mark Rutland 
Cc: Mathias Krause 
Cc: Michael Ellerman 
Cc: Nicolas Pitre 
Cc: PaX Team 
Cc: Paul Gortmaker 
Cc: Peter Zijlstra 
Cc: Ross Zwisler 
Cc: Russell King 
Cc: Rusty Russell 
Cc: Stephen Boyd 
Cc: Thomas Gleixner 
Cc: Toshi Kani 
Cc: kernel-hardening@lists.openwall.com
Cc: linux-arch 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Link: http://lkml.kernel.org/r/1455748879-21872-2-git-send-email-keescook@chromium.org
Signed-off-by: Ingo Molnar

firmware: qcom_scm-32: replace open-coded call to __cpuc_flush_dcache_area()

2015-08-11T17:45:00+00:00

Rathe rthan directly accessing architecture internal functions, provide
an "method"-centric wrapper for qcom_scm-32 to do what's necessary to
ensure that the secure monitor can see the data.  This is called
"secure_flush_area" and ensures that the specified memory area is
coherent across the secure boundary.

Acked-by: Andy Gross 
Reviewed-by: Stephen Boyd 
Signed-off-by: Russell King

ARM: reduce visibility of dmac_* functions

2015-08-01T21:25:04+00:00

The dmac_* functions are private to the ARM DMA API implementation, and
should not be used by drivers.  In order to discourage their use, remove
their prototypes and macros from asm/*.h.

We have to leave dmac_flush_range() behind as Exynos and MSM IOMMU code
use these; once these sites are fixed, this can be moved also.

Signed-off-by: Russell King