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2013-02-28ARM: Kirkwood: Convert NSA310 to DT based regulators.Andrew Lunn
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Dove: add fixed regulator for CuBox USB powerSebastian Hesselbarth
CuBox needs to enable USB power on a gpio pin. Add a fixed regulator to always enable usb power on boot. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Dove: move CuBox led pinctrl to gpio-leds nodeSebastian Hesselbarth
gpio-leds has support for pinctrl allocation, make use of it. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Kirkwood: Convert openblocks A6 board to pinctrlNobuhiro Iwamatsu
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Kirkwood: Add pinctrl of NAND to 88f6282Nobuhiro Iwamatsu
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Kirkwood: Add pinctrl of TWSI1 to 88f6282Nobuhiro Iwamatsu
The 88f6282 has one more TWSI(TWSI1). This add the information to enable pinctl of TWSI1. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: kirkwood: add pinmux option for the SDIO interface on 88F6282Thomas Petazzoni
This commit adds a pinmux option, pmx_sdio, to enable the muxing of the SDIO interface on the 88F6282 SoC from Marvell. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: kirkwood: mplcec4: use Device Tree to probe SDIOThomas Petazzoni
Now that the mvsdio driver has a Device Tree binding, and the SDIO controller is declared in kirkwood.dtsi, migrate the mplcec4 board to use the Device Tree to probe the SDIO controller and to mux the pins of the SDIO interface correctly. This patch has not been tested, it remains to be tested by a person having access to the hardware. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Stefan Peter <s.peter@mpl.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: kirkwood: dreamplug: use Device Tree to probe SDIOThomas Petazzoni
Now that the mvsdio driver has a Device Tree binding, and the SDIO controller is declared in kirkwood.dtsi, migrate the dreamplug board to use the Device Tree to probe the SDIO controller and to mux this interface properly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: kirkwood: add Device Tree informations for the SDIO controllerThomas Petazzoni
Now that the SDIO controller has a Device Tree binding, let's use it in kirkwood.dtsi. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable the SDIO interface on the Globalscale MiraboxThomas Petazzoni
The Globalscale Mirabox uses the SDIO interface of the Armada 370 to connect to a Wifi/Bluetooth SD8787 chip, so we enable the SDIO interface of this board in its Device Tree file. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable the SD card slot on Armada 370 DB boardThomas Petazzoni
The Armada XP DB evaluation board has one SD card slot, directly connected to the SDIO IP of the SoC, so we add a device tree description for it. However, in the default configuration of the board, the SD card slot is not usable: the connector plugged into CON40 must be changed against a different one, provided with the board by the manufacturer. Since such a manual modification of the hardware is needed, we did not enable the SDIO interface by default, and left it to the board user to modify the Device Tree if needed. Since this board is really only an evaluation board for developers and not a final product, it is not too bad. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable the SD card slot on Armada XP DB boardThomas Petazzoni
The Armada XP DB evaluation board has one SD card slot, directly connected to the SDIO IP of the SoC, so we enable this IP. Unfortunately, there are no GPIOs for card-detect and write-protect. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: add pin muxing options for the SDIO interface on Armada XPThomas Petazzoni
The SDIO interface is only available on pins MPP30/31/32/33/34/35 on the various Armada XP variants, so we provide a pin muxing option for this in the Armada XP .dtsi files. Even though those muxing options are the same for MV78230, MV78260 and MV78460, we keep them in each .dtsi file, because the number of pins, and therefore the declaration of the pinctrl node, is different for each SoC variant. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: add pin muxing options for the SDIO interface on Armada 370Thomas Petazzoni
The SDIO interface is available either on pins MPP9/11/12/13/14/15 or MPP47/48/49/50/51/52 on the Armada 370. Even though all combinations are potentially possible, those two muxing options are the most probable ones, so we provide those at the SoC level .dtsi file. In practice, in turns out the Armada 370 DB board uses the former, while the Armada 370 Mirabox uses the latter. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: add DT information for the SDIO interface of Armada 370/XPThomas Petazzoni
Now that the mvsdio MMC driver has a Device Tree binding, we add the Device Tree informations to describe the SDIO interface available in the Armada 370/XP SoCs. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: Add RTC support for Armada 370 and Armada XPGregory CLEMENT
The Armada 370 and Armada XP Socs have the same controller that the one used in the orion platforms. This patch updates the device tree for these SoCs. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <florian@openwrt.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: update defconfig with ATAG support when using DTGregory CLEMENT
Some of the mvebu boards (mainly the development board) come with plug-in RAM modules. This patch allows to let the bootloaders which have no support for DTS to give the real amount of memory available on the board. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: mvebu: Update defconfig to select SPI flash and MTD supportEzequiel Garcia
The Armada XP DB-MV784MP-GP board has an SPI flash device. These options allow to access that device over MTD. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: mvebu: Update defconfig to select SPI supportEzequiel Garcia
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Lior Amsalem <alior@marvell.com> Acked-by: Gregory Clement <gregory.clement@free-electrons.com> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: support for the new Armada XP development board(DB-MV784MP-GP)Gregory CLEMENT
This is the new Armada XP evaluation board from Marvell. It comes with a RS232 port over USB, a SATA link, an internal SSD, 4 Ethernet Gigabit links. Support for USB (Host and device), SDIO, PCIe will be added as drivers when they become available for Armada XP in mainline. Tested-by: Simon Guinot <simon.guinot@sequanux.org> Tested-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: update defconfig with local timer supportGregory CLEMENT
Now that we have support for local timers, enable it by default Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: Add support for local interruptGregory CLEMENT
MPIC allows the use of private interrupt for each CPUs. The 28th first interrupts are per-cpu. This patch adds support to use them. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: Update defconfig to select USB supportEzequiel Garcia
Cc: Lior Amsalem <alior@marvell.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Tested-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: kirkwood: convert Guruplug Server Plus to use the device treeWilly Tarreau
Add a device tree entry for the Guruplug Server Plus board. This port was based both on the work done on the dreamplug and the dockstar. It builds, boots and works on my Guruplug Server Plus. Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: add DTS file for Marvell RD-A370-A1 boardFlorian Fainelli
This patch adds the DTS file to support the Marvell RD-A370-A1 (Reference Design board) also known as RD-88F6710 board. It is almost entirely similar to the DB-A370 board except that the first Ethernet PHY is SGMII-wired and the second is a switch which is RGMII-wired. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: Improve the SMP support of the interrupt controllerGregory CLEMENT
This patch makes the interrupt controller driver more SMP aware for the Armada XP SoCs. It adds the support for the per-CPU irq. It also adds the implementation for the set_affinity hook. Patch initialy wrote by Yehuda Yitschak and reworked by Gregory CLEMENT. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Dove: split legacy and DT setupArnd Bergmann
In the beginning of DT for Dove it was reasonable to have it close to non-DT code. With improved DT support, it became more and more difficult to not break non-DT while changing DT code. This patch splits up DT board setup and introduces a DOVE_LEGACY config to allow to remove legacy code for DT-only kernels. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: dove: update dove_defconfig with a few useful optionsOlof Johansson
This refreshes the dove_defconfig, and adds: PRINTK_TIME DEVTMPFS EXT4 They're quite useful, and allows booting a cubox ubuntu rootfs on SD card, since that by default uses ext4. The rest of the churn is due to options and defaults moving around, no functional difference. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Kirkwood: Remove redundent SDIO clock aliasAndrew Lunn
Now that SDIO is instantiated via DT, and the SDIO DT node has a clocks property, we no longer need a C coded clock alias. Remove it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28ARM: Kirkwood: Remove redundent USB clock aliasAndrew Lunn
Now that USB is instantiated via DT, and the USB DT node has a clocks property, we no longer need a C coded clock alias. Remove it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: add LEDs support to defconfig fileThomas Petazzoni
The OpenBlocks AX3-4 platform has several LEDs, so it sounds wise to enable LED support in mvebu_defconfig. We anticipate that more platforms using Marvell EBU SoCs will have LEDs in the future. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable btmrvl driver in mvebu_defconfigThomas Petazzoni
The Globalscale Mirabox platform, based on the Armada 370 from Marvell, has a SD8787 Wireless/Bluetooth chip connected on the SDIO interface. Now that the mvsdio has a Device Tree binding, and the necessary Device Tree informations have been added at the SoC and board level, let's enable the btmrvl driver for the Bluetooth part of the SD8787 chip. For now, the driver gets probed correctly, detects the device but apparently fails to push the firmware to the device: Bluetooth: vendor=0x2df, device=0x911a, class=255, fn=2 Bluetooth: FW failed to be active in time! Bluetooth: Downloading firmware failed! Bluetooth: vendor=0x2df, device=0x911b, class=255, fn=3 Bluetooth: FW failed to be active in time! Bluetooth: Downloading firmware failed! This will have to be investigated separately. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable mwifiex driver in mvebu_defconfigThomas Petazzoni
The Globalscale Mirabox platform, based on the Armada 370 from Marvell, has a SD8787 Wireless chip connected on the SDIO interface. Now that the mvsdio has a Device Tree binding, and the necessary Device Tree informations have been added at the SoC and board level, let's enable the mwifiex driver for the Wireless part of the SD8787 chip. For now, the driver gets probed correctly, detects a device and shows the network interfaces. However, scanning Wifi networks doesn't work for now, with a 'CMD_RESP: cmd 0x6 error, result=0x1' message. This will have to be investigated separately. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: enable SDIO support in mvebu_defconfigThomas Petazzoni
Now that the mvsdio driver has gained Device Tree support and the necessary Device Tree informations has been added for Armada 370 and Armada XP platforms, we enable the MMC subsystem and the mvsdio driver in mvebu_defconfig. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28arm: mvebu: Update defconfig with Marvell RTC supportGregory CLEMENT
The RTC class driver is already part of the mvebu_defconfig but the Marvell internal RTC not yet. Now that its support is added for mvebu let's update the config file. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Florian Fainelli <florian@openwrt.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-02-28Merge branch 'timer/cleanup' into late/mvebu2Arnd Bergmann
Basing the mvebu patches on top of the timer cleanup avoids some nasty merges. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-02-28Merge 'mmc/upstream' into late/mvebu2Arnd Bergmann
These patches from the mmc tree were merged into v3.9 already and the later mvebu patches depend on them. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-02-28xen/pat: Disable PAT using pat_enabled value.Konrad Rzeszutek Wilk
The git commit 8eaffa67b43e99ae581622c5133e20b0f48bcef1 (xen/pat: Disable PAT support for now) explains in details why we want to disable PAT for right now. However that change was not enough and we should have also disabled the pat_enabled value. Otherwise we end up with: mmap-example:3481 map pfn expected mapping type write-back for [mem 0x00010000-0x00010fff], got uncached-minus ------------[ cut here ]------------ WARNING: at /build/buildd/linux-3.8.0/arch/x86/mm/pat.c:774 untrack_pfn+0xb8/0xd0() mem 0x00010000-0x00010fff], got uncached-minus ------------[ cut here ]------------ WARNING: at /build/buildd/linux-3.8.0/arch/x86/mm/pat.c:774 untrack_pfn+0xb8/0xd0() ... Pid: 3481, comm: mmap-example Tainted: GF 3.8.0-6-generic #13-Ubuntu Call Trace: [<ffffffff8105879f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff810587fa>] warn_slowpath_null+0x1a/0x20 [<ffffffff8104bcc8>] untrack_pfn+0xb8/0xd0 [<ffffffff81156c1c>] unmap_single_vma+0xac/0x100 [<ffffffff81157459>] unmap_vmas+0x49/0x90 [<ffffffff8115f808>] exit_mmap+0x98/0x170 [<ffffffff810559a4>] mmput+0x64/0x100 [<ffffffff810560f5>] dup_mm+0x445/0x660 [<ffffffff81056d9f>] copy_process.part.22+0xa5f/0x1510 [<ffffffff81057931>] do_fork+0x91/0x350 [<ffffffff81057c76>] sys_clone+0x16/0x20 [<ffffffff816ccbf9>] stub_clone+0x69/0x90 [<ffffffff816cc89d>] ? system_call_fastpath+0x1a/0x1f ---[ end trace 4918cdd0a4c9fea4 ]--- (a similar message shows up if you end up launching 'mcelog') The call chain is (as analyzed by Liu, Jinsong): do_fork --> copy_process --> dup_mm --> dup_mmap --> copy_page_range --> track_pfn_copy --> reserve_pfn_range --> line 624: flags != want_flags It comes from different memory types of page table (_PAGE_CACHE_WB) and MTRR (_PAGE_CACHE_UC_MINUS). Stefan Bader dug in this deep and found out that: "That makes it clearer as this will do reserve_memtype(...) --> pat_x_mtrr_type --> mtrr_type_lookup --> __mtrr_type_lookup And that can return -1/0xff in case of MTRR not being enabled/initialized. Which is not the case (given there are no messages for it in dmesg). This is not equal to MTRR_TYPE_WRBACK and thus becomes _PAGE_CACHE_UC_MINUS. It looks like the problem starts early in reserve_memtype: if (!pat_enabled) { /* This is identical to page table setting without PAT */ if (new_type) { if (req_type == _PAGE_CACHE_WC) *new_type = _PAGE_CACHE_UC_MINUS; else *new_type = req_type & _PAGE_CACHE_MASK; } return 0; } This would be what we want, that is clearing the PWT and PCD flags from the supported flags - if pat_enabled is disabled." This patch does that - disabling PAT. CC: stable@vger.kernel.org # 3.3 and further Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Reported-and-Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reported-and-Tested-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-02-28s390/module: fix compile warningHeiko Carstens
Get rid of this one (false positive): arch/s390/kernel/module.c: In function ‘apply_relocate_add’: arch/s390/kernel/module.c:404:5: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized] arch/s390/kernel/module.c:225:6: note: ‘rc’ was declared here Play safe and preinitialize rc with an error value, so we see an error if new users indeed don't initialize it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/uaccess: fix kernel ds access for page table walkHeiko Carstens
When the kernel resides in home space and the mvcos instruction is not available uaccesses for kernel ds happen via simple strnlen() or memcpy() calls. This however can break badly, since uaccesses in kernel space may fail as well, especially if CONFIG_DEBUG_PAGEALLOC is turned on. To fix this implement strnlen_kernel() and copy_in_kernel() functions which can only be used by the page table uaccess functions. These two functions detect invalid memory accesses and return the correct length of processed data.. Both functions are more or less a copy of the std variants without sacf calls. Fixes ipl crashes on 31 bit machines as well on 64 bit machines without mvcos. Caused by changing the default address space of the kernel being home space. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/uaccess: fix strncpy_from_user string length checkHeiko Carstens
The "standard" and page table walk variants of strncpy_from_user() first check the length of the to be copied string in userspace. The string is then copied to kernel space and the length returned to the caller. However userspace can modify the string at any time while the kernel checks for the length of the string or copies the string. In result the returned length of the string is not necessarily correct. Fix this by copying in a loop which mimics the mvcos variant of strncpy_from_user(), which handles this correctly. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/dis: Fix invalid array sizeSyam Sidhardhan
We are using sizeof operator for an array given as function argument, which is incorrect. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/uaccess: remove pointless access_ok() checksHeiko Carstens
access_ok() always returns 'true' on s390. Therefore all calls are quite pointless and can be removed. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/uaccess: fix strncpy_from_user/strnlen_user zero maxlen caseHeiko Carstens
If the maximum length specified for the to be accessed string for strncpy_from_user() and strnlen_user() is zero the following incorrect values would be returned or incorrect memory accesses would happen: strnlen_user_std() and strnlen_user_pt() incorrectly return "1" strncpy_from_user_pt() would incorrectly access "dst[maxlen - 1]" strncpy_from_user_mvcos() would incorrectly return "-EFAULT" Fix all these oddities by adding early checks. Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/uaccess: shorten strncpy_from_user/strnlen_userHeiko Carstens
Always stay within page boundaries when copying from user within strlen_user_mvcos()/strncpy_from_user_mvcos(). This allows to shorten the code a bit and may prevent unnecessary faults, since we copy quite large amounts of memory to kernel space. Also directly call the mvcos variants of copy_from_user() to avoid indirect branches. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/mm: ignore change bit for vmemmapHeiko Carstens
Add hint to the page tables that we don't care about the change bit in storage keys that belong to vmemmap pages. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28s390/page table dumper: add support for change-recording override bitHeiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-28x86/kvm: Fix pvclock vsyscall fixmapPeter Hurley
The physical memory fixmapped for the pvclock clock_gettime vsyscall was allocated, and thus is not a kernel symbol. __pa() is the proper method to use in this case. Fixes the crash below when booting a next-20130204+ smp guest on a 3.8-rc5+ KVM host. [ 0.666410] udevd[97]: starting version 175 [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d Acked-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-02-27Merge branch 'akpm' (final batch from Andrew)Linus Torvalds
Merge third patch-bumb from Andrew Morton: "This wraps me up for -rc1. - Lots of misc stuff and things which were deferred/missed from patchbombings 1 & 2. - ocfs2 things - lib/scatterlist - hfsplus - fatfs - documentation - signals - procfs - lockdep - coredump - seqfile core - kexec - Tejun's large IDR tree reworkings - ipmi - partitions - nbd - random() things - kfifo - tools/testing/selftests updates - Sasha's large and pointless hlist cleanup" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (163 commits) hlist: drop the node parameter from iterators kcmp: make it depend on CHECKPOINT_RESTORE selftests: add a simple doc tools/testing/selftests/Makefile: rearrange targets selftests/efivarfs: add create-read test selftests/efivarfs: add empty file creation test selftests: add tests for efivarfs kfifo: fix kfifo_alloc() and kfifo_init() kfifo: move kfifo.c from kernel/ to lib/ arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS w1: add support for DS2413 Dual Channel Addressable Switch memstick: move the dereference below the NULL test drivers/pps/clients/pps-gpio.c: use devm_kzalloc Documentation/DMA-API-HOWTO.txt: fix typo include/linux/eventfd.h: fix incorrect filename is a comment mtd: mtd_stresstest: use prandom_bytes() mtd: mtd_subpagetest: convert to use prandom library mtd: mtd_speedtest: use prandom_bytes mtd: mtd_pagetest: convert to use prandom library mtd: mtd_oobtest: convert to use prandom library ...