linux-toradex.git/arch, branch v3.10.81

MIPS: Fix enabling of DEBUG_STACKOVERFLOW

2015-06-22T23:55:53+00:00

commit 5f35b9cd553fd64415b563497d05a563c988dbd6 upstream.

Commit 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection") added
kernel stack overflow detection, however it only enabled it conditional
upon the preprocessor definition DEBUG_STACKOVERFLOW, which is never
actually defined. The Kconfig option is called DEBUG_STACKOVERFLOW,
which manifests to the preprocessor as CONFIG_DEBUG_STACKOVERFLOW, so
switch it to using that definition instead.

Fixes: 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection")
Signed-off-by: James Hogan 
Cc: Ralf Baechle 
Cc: Adam Jiang 
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/10531/
Signed-off-by: Ralf Baechle 
Signed-off-by: Greg Kroah-Hartman

ARM: fix missing syscall trace exit

2015-06-06T06:19:59+00:00

commit 1b97937246d8b97c0760d16d8992c7937bdf5e6a upstream.

Josh Stone reports:

  I've discovered a case where both arm and arm64 will miss a ptrace
  syscall-exit that they should report.  If the syscall is entered
  without TIF_SYSCALL_TRACE set, then it goes on the fast path.  It's
  then possible to have TIF_SYSCALL_TRACE added in the middle of the
  syscall, but ret_fast_syscall doesn't check this flag again.

Fix this by always checking for a syscall trace in the fast exit path.

Reported-by: Josh Stone 
Signed-off-by: Russell King 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: imx27: only map 4 Kbyte for fec registers

2015-06-06T06:19:59+00:00

commit a29ef819f3f34f89a1b9b6a939b4c1cdfe1e85ce upstream.

According to the imx27 documentation, fec has a 4 Kbyte
memory space map. Moreover, the actual 16 Kbyte mapping
overlaps the SCC (Security Controller) memory register
space. So, we reduce the memory register space to 4 Kbyte.

Signed-off-by: Philippe Reynes 
Acked-by: Uwe Kleine-König 
Fixes: 9f0749e3eb88 ("ARM i.MX27: Add devicetree support")
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

crypto: s390/ghash - Fix incorrect ghash icv buffer handling.

2015-06-06T06:19:58+00:00

commit a1cae34e23b1293eccbcc8ee9b39298039c3952a upstream.

Multitheaded tests showed that the icv buffer in the current ghash
implementation is not handled correctly. A move of this working ghash
buffer value to the descriptor context fixed this. Code is tested and
verified with an multithreaded application via af_alg interface.

Signed-off-by: Harald Freudenberger 
Signed-off-by: Gerald Schaefer 
Reported-by: Herbert Xu 
Signed-off-by: Herbert Xu 
Signed-off-by: Greg Kroah-Hartman

powerpc: Align TOC to 256 bytes

2015-06-06T06:19:57+00:00

commit 5e95235ccd5442d4a4fe11ec4eb99ba1b7959368 upstream.

Recent toolchains force the TOC to be 256 byte aligned. We need
to enforce this alignment in our linker script, otherwise pointers
to our TOC variables (__toc_start, __prom_init_toc_start) could
be incorrect.

If they are bad, we die a few hundred instructions into boot.

Signed-off-by: Anton Blanchard 
Signed-off-by: Michael Ellerman 
Signed-off-by: Greg Kroah-Hartman

KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages

2015-06-06T06:19:54+00:00

commit 898761158be7682082955e3efa4ad24725305fc7 upstream.

smep_andnot_wp is initialized in kvm_init_shadow_mmu and shadow pages
should not be reused for different values of it.  Thus, it has to be
added to the mask in kvm_mmu_pte_write.

Reviewed-by: Xiao Guangrong 
Signed-off-by: Paolo Bonzini 
Signed-off-by: Greg Kroah-Hartman

ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC

2015-05-17T16:51:32+00:00

commit 750e30d4076ae5e02ad13a376e96c95a2627742c upstream.

There is no crystal connected to the internal RTC on the Open Block
AX3. So let's disable it in order to prevent the kernel probing the
driver uselessly. Eventually this patches removes the following
warning message from the boot log:
"rtc-mv d0010300.rtc: internal RTC not ticking"

Acked-by: Andrew Lunn 
Signed-off-by: Gregory CLEMENT 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: imx23-olinuxino: Fix dr_mode of usb0

2015-05-17T16:51:32+00:00

commit 0fdebe1a2f4d3a8fc03754022fabf8ba95e131a3 upstream.

The dr_mode of usb0 on imx233-olinuxino is left to default "otg".
Since the green LED (GPIO2_1) on imx233-olinuxino is connected to the
same pin as USB_OTG_ID it's possible to disable USB host by LED toggling:

echo 0 > /sys/class/leds/green/brightness
[ 1068.890000] ci_hdrc ci_hdrc.0: remove, state 1
[ 1068.890000] usb usb1: USB disconnect, device number 1
[ 1068.920000] usb 1-1: USB disconnect, device number 2
[ 1068.920000] usb 1-1.1: USB disconnect, device number 3
[ 1069.070000] usb 1-1.2: USB disconnect, device number 4
[ 1069.450000] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
[ 1074.460000] ci_hdrc ci_hdrc.0: timeout waiting for 00000800 in 11

This patch fixes the issue by setting dr_mode to "host" in the dts file.

Reported-by: Harald Geyer 
Signed-off-by: Stefan Wahren 
Reviewed-by: Fabio Estevam 
Reviewed-by: Marek Vasut 
Acked-by: Peter Chen 
Fixes: b49312948285 ("ARM: dts: imx23-olinuxino: Add USB host support")
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name

2015-05-17T16:51:32+00:00

commit 4ada77e37a773168fea484899201e272ab44ba8b upstream.

Fix a typo in the TX DMA interrupt name for AUART4.
This patch makes AUART4 operational again.

Signed-off-by: Marek Vasut 
Fixes: f30fb03d4d3a ("ARM: dts: add generic DMA device tree binding for mxs-dma")
Acked-by: Stefan Wahren 
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: imx25: Add #pwm-cells to pwm4

2015-05-17T16:51:32+00:00

commit f90d3f0d0a11fa77918fd5497cb616dd2faa8431 upstream.

The property '#pwm-cells' is currently missing. It is not possible to
use pwm4 without this property.

Signed-off-by: Markus Pargmann 
Fixes: 5658a68fb578 ("ARM i.MX25: Add devicetree")
Reviewed-by: Fabio Estevam 
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman