crypto: sha256 - Create module providing optimized SHA256 routines using SSSE3, AVX or AVX2 instructions.

We added glue code and config options to create crypto
module that uses SSE/AVX/AVX2 optimized SHA256 x86_64 assembly routines.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Provides SHA256 x86_64 assembly routine optimized with SSE, AVX and
AVX2's RORX instructions.  Speedup of 70% or more has been
measured over the generic implementation.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Provides SHA256 x86_64 assembly routine optimized with SSE and AVX instructions.
Speedup of 60% or more has been measured over the generic implementation.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Provides SHA256 x86_64 assembly routine optimized with SSSE3 instructions.
Speedup of 40% or more has been measured over the generic implementation.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Other SHA256 routine may need to use the generic routine when
FPU is not available.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

These modules require AVX support in assembler, so add new check to Makefile
for this.

Other option would be to use CONFIG_AS_AVX inside source files, but that would
result dummy/empty/no-fuctionality modules being created.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This eliminates having an #ifdef returning NULL for the case
when OF is disabled.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Using devm_ioremap_resource() can make the code cleaner and simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Following AEAD algo templates are updated for '.type' initialization.
	(a) authenc(hmac(sha224),cbc(aes))
	(b) authenc(hmac(sha384),cbc(aes))
	(c) authenc(hmac(sha224),cbc(des3_ede))
	(d) authenc(hmac(sha384),cbc(des3_ede))
	(e) authenc(hmac(sha224),cbc(des))
	(f) authenc(hmac(sha384),cbc(des))
Signed-off-by: Vakul Garg <vakul@freescale.com>
Reviewed-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This change is required for post SEC-5.0 devices which have RNG4.
Setting RDB in security configuration register allows CAAM to use the
"Random Data Buffer" to be filled by a single request. The Random Data
Buffer is large enough for ten packets to get their IVs from a single
request. If the Random Data Buffer is not enabled, then each IV causes a
separate request, and RNG4 hardware cannot keep up resulting in lower
IPSEC throughput if random IVs are used.
Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/char/hw_random/exynos-rng.c:147:12: warning: 'exynos_rng_runtime_suspend' defined but not used [-Wunused-function]
drivers/char/hw_random/exynos-rng.c:157:12: warning: 'exynos_rng_runtime_resume' defined but not used [-Wunused-function]

Add CONFIG_PM_RUNTIME to suspend/resume functions to fix the build
error. It is because UNIVERSAL_DEV_PM_OPS macro is related to both
CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME.

drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_suspend' undeclared here (not in a function)
drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_resume' undeclared here (not in a function)
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Mihnea Dobrescu-Balaur <mihneadb@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

SAHARA2 HW module is included in the i.MX27 SoC from
Freescale. It is capable of performing cipher algorithms
such as AES, 3DES..., hashing and RNG too.

This driver provides support for AES-CBC and AES-ECB
by now.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Seeing from the comment, there should be three reasons for removing request_mem_region.
Change the comment "two" to "three".
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The Kconfig entry for CAAM's hash algorithm implementations has always
selected CRYPTO_AHASH. But there's no corresponding Kconfig symbol.

It seems it was intended to select CRYPTO_HASH, like other crypto
drivers do. That would apparently (indirectly) select CRYPTO_HASH2,
which would enable the ahash functionality this driver uses.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

module_platform_driver() makes the code simpler by eliminating boilerplate
code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

module_platform_driver() makes the code simpler by eliminating boilerplate
code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

After DMA is complete, the omap_aes_finish_req function is called as
a part of the done_task tasklet. During this its atomic and any calls
to pm functions should not assume they wont sleep.

The patch replaces a call to pm_runtime_put_sync (which can sleep) with
pm_runtime_put thus fixing a kernel panic observed on AM33xx SoC during
AES operation.

Tested on an AM33xx SoC device (beaglebone board).
To reproduce the problem, I used the tcrypt kernel module as:
modprobe tcrypt sec=2 mode=500
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

After DMA is complete, the omap_sham_finish_req function is called as
a part of the done_task tasklet. During this its atomic and any calls
to pm functions should not assume they wont sleep.

The patch replaces a call to pm_runtime_put_sync (which can sleep) with
pm_runtime_put thus fixing a kernel panic observed on AM33xx SoC during
SHA operation.

Tested on an AM33xx SoC device (beaglebone board).
To reproduce the problem, used the tcrypt kernel module as:
modprobe tcrypt sec=2 mode=403
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

If we define dev_dbg(), then there is a possible NULL pointer
dereference.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

There is no need to modify the netlink dispatch table at runtime and
making it const even makes the resulting object file slightly smaller.

Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto: crc32c - Update the links to the white papers on CRC32C calculations with PCLMULQDQ instructions.

Herbert,

The following patch update the stale link to the CRC32C white paper
that was referenced.

Tim
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Updates from IP release 0x320 to 0x400:
 - add DMA support (previous IP revision use PDC)
 - add DMA double input buffer support
 - add SHA224 support

Update from IP release 0x400 to 0x410:
 - add SHA384 and SHA512 support
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Update from previous IP release (0x600):
 - add DMA support (previous IP release use PDC)
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Updates from previous IP release (0x120):
 - add cfb64 support
 - add DMA double input buffer support
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Only AES use DMA in AT91SAM9G45 (TDES and SHA use PDC).

However latest Atmel TDES and SHA IP releases use DMA instead of PDC.
  --> Atmel TDES and SHA drivers need DMA platform data for those IP releases.

Goal of this patch is to use the same platform data structure for all Atmel
crypto peripherals. This structure contains information about DMA interface.
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This bool option can never be set to anything other than y.  So
let's just kill it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Pull crypto update from Herbert Xu:
 "Here is the crypto update for 3.9:

   - Added accelerated implementation of crc32 using pclmulqdq.

   - Added test vector for fcrypt.

   - Added support for OMAP4/AM33XX cipher and hash.

   - Fixed loose crypto_user input checks.

   - Misc fixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (43 commits)
  crypto: user - ensure user supplied strings are nul-terminated
  crypto: user - fix empty string test in report API
  crypto: user - fix info leaks in report API
  crypto: caam - Added property fsl,sec-era in SEC4.0 device tree binding.
  crypto: use ERR_CAST
  crypto: atmel-aes - adjust duplicate test
  crypto: crc32-pclmul - Kill warning on x86-32
  crypto: x86/twofish - assembler clean-ups: use ENTRY/ENDPROC, localize jump labels
  crypto: x86/sha1 - assembler clean-ups: use ENTRY/ENDPROC
  crypto: x86/serpent - use ENTRY/ENDPROC for assember functions and localize jump targets
  crypto: x86/salsa20 - assembler cleanup, use ENTRY/ENDPROC for assember functions and rename ECRYPT_* to salsa20_*
  crypto: x86/ghash - assembler clean-up: use ENDPROC at end of assember functions
  crypto: x86/crc32c - assembler clean-up: use ENTRY/ENDPROC
  crypto: cast6-avx: use ENTRY()/ENDPROC() for assembler functions
  crypto: cast5-avx: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: camellia-x86_64/aes-ni: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: blowfish-x86_64: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: aesni-intel - add ENDPROC statements for assembler functions
  crypto: x86/aes - assembler clean-ups: use ENTRY/ENDPROC, localize jump targets
  crypto: testmgr - add test vector for fcrypt
  ...

Pull ia64 update from Tony Luck:
 "ia64 vm patch series that was cooking in -mm tree"

* tag 'please-pull-vm_unwrapped' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
  mm: use vm_unmapped_area() on ia64 architecture

Pull security subsystem fixes from James Morris:
 "From Mimi:

    Both of these patches are bug fixes for patches, which were
    upstreamed in this open window.  The first patch addresses a merge
    issue.  The second patch addresses a CONFIG_BLOCK dependency."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  block: fix part_pack_uuid() build error
  ima: "remove enforce checking duplication" merge fix

Pull ktest update from Steven Rostedt:
 "Added ability to have all builds test warnings.

  Fixed failing reboot when the reboot produces a non fatal error.

  Config reading fixes and other cleanups"

* tag 'ktest-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Remove indexes from warnings check
  ktest: Ignore warnings during reboot
  ktest: Search for linux banner for successful reboot
  ktest: Add make_warnings_file and process full warnings
  ktest: Allow a test option to use its default option
  ktest: Strip off '\n' when reading which files were modified
  ktest: Do not require CONSOLE for build or install bisects

Pull module update from Rusty Russell:
 "The sweeping change is to make add_taint() explicitly indicate whether
  to disable lockdep, but it's a mechanical change."

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  MODSIGN: Add option to not sign modules during modules_install
  MODSIGN: Add -s <signature> option to sign-file
  MODSIGN: Specify the hash algorithm on sign-file command line
  MODSIGN: Simplify Makefile with a Kconfig helper
  module: clean up load_module a little more.
  modpost: Ignore ARC specific non-alloc sections
  module: constify within_module_*
  taint: add explicit flag to show whether lock dep is still OK.
  module: printk message when module signature fail taints kernel.

Commit "85865c1f ima: add policy support for file system uuid"
introduced a CONFIG_BLOCK dependency.  This patch defines a
wrapper called blk_part_pack_uuid(), which returns -EINVAL,
when CONFIG_BLOCK is not defined.

security/integrity/ima/ima_policy.c:538:4: error: implicit declaration
of function 'part_pack_uuid' [-Werror=implicit-function-declaration]

Changelog v2:
- Reference commit number in patch description
Changelog v1:
- rename ima_part_pack_uuid() to blk_part_pack_uuid()
- resolve scripts/checkpatch.pl warnings
Changelog v0:
- fix UUID scripts/Lindent msgs
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: James Morris <james.l.morris@oracle.com>

Commit "750943a3 ima: remove enforce checking duplication" combined
the 'in IMA policy' and 'enforcing file integrity' checks.  For
the non-file, kernel module verification, a specific check for
'enforcing file integrity' was not added.  This patch adds the
check.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

Pull MFS updates from Samuel Ortiz:
 "This is the MFD pull request for the 3.9 merge window.

  No new drivers this time, but a bunch of fairly big cleanups:

   - Roger Quadros worked on a OMAP USBHS and TLL platform data
     consolidation, OMAP5 support and clock management code cleanup.

   - The first step of a major sync for the ab8500 driver from Lee
     Jones.  In particular, the debugfs and the sysct interfaces got
     extended and improved.

   - Peter Ujfalusi sent a nice patchset for cleaning and fixing the
     twl-core driver, with a much needed module id lookup code
     improvement.

   - The regular wm5102 and arizona cleanups and fixes from Mark Brown.

   - Laxman Dewangan extended the palmas APIs in order to implement the
     palmas GPIO and rt drivers.

   - Laxman also added DT support for the tps65090 driver.

   - The Intel SCH and ICH drivers got a couple fixes from Aaron Sierra
     and Darren Hart.

   - Linus Walleij patchset for the ab8500 driver allowed ab8500 and
     ab9540 based devices to switch to the new abx500 pin-ctrl driver.

   - The max8925 now has device tree and irqdomain support thanks to
     Qing Xu.

   - The recently added rtsx driver got a few cleanups and fixes for a
     better card detection code path and now also supports the RTS5227
     chipset, thanks to Wei Wang and Roger Tseng."

* tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (109 commits)
  mfd: lpc_ich: Use devres API to allocate private data
  mfd: lpc_ich: Add Device IDs for Intel Wellsburg PCH
  mfd: lpc_sch: Accomodate partial population of the MFD devices
  mfd: da9052-i2c: Staticize da9052_i2c_fix()
  mfd: syscon: Fix sparse warning
  mfd: twl-core: Fix kernel panic on boot
  mfd: rtsx: Fix issue that booting OS with SD card inserted
  mfd: ab8500: Fix compile error
  mfd: Add missing GENERIC_HARDIRQS dependecies
  Documentation: Add docs for max8925 dt
  mfd: max8925: Add dts
  mfd: max8925: Support dt for backlight
  mfd: max8925: Fix onkey driver irq base
  mfd: max8925: Fix mfd device register failure
  mfd: max8925: Add irqdomain for dt
  mfd: vexpress: Allow vexpress-sysreg to self-initialise
  mfd: rtsx: Support RTS5227
  mfd: rtsx: Implement driving adjustment to device-dependent callbacks
  mfd: vexpress: Add pseudo-GPIO based LEDs
  mfd: ab8500: Rename ab8500 to abx500 for hwmon driver
  ...

Pull media updates from Mauro Carvalho Chehab:

 - Some cleanups at V4L2 documentation

 - new drivers: ts2020 frontend, ov9650 sensor, s5c73m3 sensor,
   sh-mobile veu mem2mem driver, radio-ma901, davinci_vpfe staging
   driver

 - Lots of missing MAINTAINERS entries added

 - several em28xx driver improvements, including its conversion to
   videobuf2

 - several fixups on drivers to make them to better comply with the API

 - DVB core: add support for DVBv5 stats, allowing the implementation of
   statistics for new standards like ISDB

 - mb86a20s: add statistics to the driver

 - lots of new board additions, cleanups, and driver improvements.

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (596 commits)
  [media] media: Add 0x3009 USB PID to ttusb2 driver (fixed diff)
  [media] rtl28xxu: Add USB IDs for Compro VideoMate U620F
  [media] em28xx: add usb id for terratec h5 rev. 3
  [media] media: rc: gpio-ir-recv: add support for device tree parsing
  [media] mceusb: move check earlier to make smatch happy
  [media] radio-si470x doc: add info about v4l2-ctl and sox+alsa
  [media] staging: media: Remove unnecessary OOM messages
  [media] sh_vou: Use vou_dev instead of vou_file wherever possible
  [media] sh_vou: Use video_drvdata()
  [media] drivers/media/platform/soc_camera/pxa_camera.c: use devm_ functions
  [media] mt9t112: mt9t111 format set up differs from mt9t112
  [media] sh-mobile-ceu-camera: fix SHARPNESS control default
  Revert "[media] fc0011: Return early, if the frequency is already tuned"
  [media] cx18/ivtv: fix regression: remove __init from a non-init function
  [media] em28xx: fix analog streaming with USB bulk transfers
  [media] stv0900: remove unnecessary null pointer check
  [media] fc0011: Return early, if the frequency is already tuned
  [media] fc0011: Add some sanity checks and cleanups
  [media] fc0011: Fix xin value clamping
  Revert "[media] [PATH,1/2] mxl5007 move reset to attach"
  ...

Pull libata updates from Jeff Garzik:

1) apply, and then revert, the sysfs export of ATA host controller
   number.  Discussion was continuing after patch application, trying to
   figure out how to best mesh exported data with the installers,
   boot-time agents and other parties that want this info.

2) Merge Zero-Power Optical Device Driver (ZPODD) support, bringing the
   wonderfulness of sane power management to your CD/DVD device.

   Includes one SCSI-subsystem patch (with appropriate ACKs), adding
   runtime PM support to 'sr' driver.  That is the ZPODD interaction
   bits.

   Patchset went through some 13 revisions before it got here; kudos to
   Intel for persistence.

3) pata_samsung_cf: use devm_clk_get()

4) more ata_piix, ahci PCI IDs

5) Add SATA driver for R-Car SoC

6) Convert libata to use devm_ioremap_resource (Note: I think Greg sent
   this to you, also)

7) Set proper Sense Key (SK) in the SCSI simulator when ATA passthrough
   indicates check condition.  Google and specification hawks everywhere
   shall rejoice.

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (22 commits)
  [libata] fix smatch warning for zpodd_wake_dev
  [libata] Set proper SK when CK_COND is set.
  [libata] Convert to devm_ioremap_resource()
  libata: add R-Car SATA driver
  ahci: Add Device IDs for Intel Wellsburg PCH
  ata_piix: Add Device IDs for Intel Wellsburg PCH
  [SCSI] remove can_power_off flag from scsi_device
  [libata] scsi: no poll when ODD is powered off
  [SCSI] sr: support runtime pm
  ahci: AHCI-mode SATA patch for Intel Avoton DeviceIDs
  ata_piix: IDE-mode SATA patch for Intel Avoton DeviceIDs
  [libata] PM code cleanup for ata port
  [libata] pm: differentiate system and runtime pm for ata port
  Revert "libata: export host controller number thru /sys"
  libata: do not suspend port if normal ODD is attached
  libata: expose pm qos flags for ata device
  libata: handle power transition of ODD
  libata: check zero power ready status for ZPODD
  libata: move acpi notification code to zpodd
  libata: identify and init ZPODD devices
  ...

Commit 81732c3b ("tty vt: Fix line garbage in virtual console on
command line edition") broke insert_char() in multiple ways.  Then
commit b1a925f4 ("tty vt: Fix a regression in command line edition")
partially fixed it.  However, the buffer being moved is still too large
and overflowing beyond the end of the current line, corrupting existing
characters on the next line.

Example test case:

echo -e "abc\nde\x1b[A\x1b[4h \x1b[4l\x1b[B"

Expected result:

ab c
de

Current result:

ab c
 e

Needless to say that this is very annoying when inserting words in the
middle of paragraphs with certain text editors.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: Jean-François Moine <moinejf@free.fr>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>